ACNH weather

The weather mechanic in New Horizons works slightly different from the other games. For one thing, the game uses weather seeds that predetermine a specific island's weather. Also, the different weather and wind patterns for each day are prewritten by the game's developers. There are also special cloud types that are predetermined by the weather seed, that only appear at certain times of the year.

Weather seeds[edit]

In New Horizons, there are weather seeds that predetermine the weather for an island. There are over 2 billion weather seeds in the game's files. When a new island is created, the game will randomly select 1 of these seeds. Then the chosen weather seed will list the weather patterns, one for each day, as well as when special clouds occur. It also lists when shooting stars occur during a meteor shower. The seed can be found with the MeteoNook tool.

Weather patterns[edit]

There are 34 weather patterns in New Horizons. All of these patterns are divided into specific groups, based on the first part of their label. For example, Fine02 will be in the Fine group, while CloudRain00 belongs to the CloudRain group. There are 10 groups, with 8 being normal groups and 2 being the special groups. The weather patterns in the normal groups are stated in the weather seed with one pattern for each day, and they occur on normal days with no events. The 8 normal groups are stated in the following:

Fine patterns are sunny all day. There are 7 Fine patterns ranging from Fine00 to Fine06. The Fine00, Fine02, Fine04, and Fine06 patterns are meteor shower patterns, meaning that those patterns will have a guaranteed meteor shower with shooting stars. Fine00 will produce a heavy meteor shower while the other 3 patterns will produce a light meteor shower. Heavy showers have 5 or 8 stars a minute, very frequently (every other minute on average), between 7 PM and 4 AM. Light showers have 5 stars a minute, in very rare bursts. During winter, Fine01, Fine03, and Fine05 will produce an aurora during clear hours in the night.
Cloud patterns are cloudy all day. There are 3 Cloud patterns (Cloud00 to Cloud02). The only Cloud pattern that can produce rain is Cloud02 from 8 AM to 11 AM and again from 2 PM to 5PM. Other than that however, there will be cloudy skies.
Rain patterns will rain over the course of the day, with a few 1-4 hour breaks. There are 6 Rain patterns (Rain00 to Rain05). There is only one 1 pattern in which it will rain all day without any breaks: Rain04. All of the Rain patterns except for Rain00 will produce at least 1 hour of heavy rain with thunderstorms being possible.
FineCloud patterns will be sunny in the afternoon while being cloudy in the morning and night. There are 3 FineCloud patterns (FineCloud00 to FineCloud02). 1-3 hours of rain is guaranteed during the cloudy hours, however, it will only be light rain.
CloudFine patterns will be cloudy and rainy in the morning until 1 PM, and then it will be sunny the rest of the day. There are 3 CloudFine patterns (CloudFine00 to CloudFine02). All 3 of the CloudFine patterns will have a guaranteed rainbow if it is not winter, as it requires rain to form.
FineRain patterns will be sunny in the morning and the night while it will be rainy in the afternoon from 12 PM to 4 PM. There are 4 FineRain patterns (FineRain00 to FineRain03). Both FineRain02 and FineRain03 will have heavy rain, and thunderstorms are possible like in the Rain patterns. There will also be a rainbow for all FineRain patterns except for FineRain02, as it will be cloudy at 4 PM after having heavy rain at 3 PM.
CloudRain patterns will be cloudy in the morning and rainy the rest of the day. There are 3 CloudRain patterns (CloudRain00 to CloudRain02). The only times there will always be no rain is from 6 AM to 10 AM. Like the Rain and FineRain patterns, there can be heavy rain and thunderstorms.
RainCloud patterns will be rainy in the morning until 3 PM, then will be cloudy the rest of the day. There are 3 RainCloud patterns (RainCloud00 to RainCloud02). RainCloud02 will have heavy rain and possible thunderstorms from 6 AM until 8 AM.

There are 2 special weather groups, with both of them only having 1 weather pattern. EventDay00 will occur on specific events like Bunny Day and the Bug-Off, on the day K.K. Slider performs for the first time, and any day you add a new player (Switch profile) to your island. EventDay00 will also occur on New Year's Day if Fine00 doesn't occur. EventDay00 is similar to Fine01 with a few minor differences. Commun00 is the weather seen on Harv's Island. This weather pattern is the same as Fine01, only without an aurora.

Weather patterns table[edit]

The following table lists how each weather pattern looks like^[1]:


Pattern	5 AM	6 AM	7 AM	8 AM	9 AM	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM
Fine00	Clear	Sunny	Clear	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear¹	Clear¹	Clear¹	Sunny¹	Clear¹	Clear¹	Clear¹	Sunny¹	Sunny¹	Clear
Fine01	Sunny	Clear	Sunny	Sunny	Sunny	Clear	Sunny	Cloudy	Clear	Sunny	Clear	Sunny	Sunny	Cloudy	Sunny	Cloudy	Sunny	Clear²	Sunny	Clear²	Clear²	Sunny	Clear²	Clear
Fine02	Sunny	Sunny	Clear	Sunny	Clear	Cloudy	Clear	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Cloudy³	Sunny^{4, 5}	Sunny⁵	Sunny⁵	Clear⁵	Clear⁵	Clear⁵	Clear⁵	Sunny⁵	Sunny⁵	Sunny
Fine03	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Cloudy	Sunny	Clear	Sunny	Sunny	Sunny	Clear²	Cloudy	Clear²	Clear²	Sunny	Clear²	Sunny	Clear²	Clear²	Clear
Fine04	Sunny	Sunny	Sunny	Sunny	Cloudy	Sunny	Sunny	Clear	Sunny	Cloudy	Sunny	Clear	Sunny	Clear	Sunny⁵	Sunny⁵	Clear⁵	Sunny⁵	Clear⁵	Clear⁵	Clear⁵	Clear⁵	Sunny⁵	Sunny
Fine05	Sunny	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Cloudy	Sunny	Sunny	Clear	Sunny	Cloudy	Sunny	Sunny	Clear²	Sunny	Cloudy	Sunny	Sunny	Clear²	Sunny
Fine06	Sunny	Cloudy	Sunny	Sunny	Cloudy	Clear	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Cloudy³	Cloudy	Sunny^{4, 5}	Sunny⁵	Sunny⁵	Clear⁵	Clear⁵	Clear⁵	Sunny⁵	Clear⁵	Sunny⁵	Sunny
Cloud00	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Cloudy	Sunny	Sunny	Sunny	Sunny	Cloudy	Cloudy
Cloud01	Cloudy	Cloudy	Cloudy	Sunny	Cloudy	Rain clouds	Cloudy	Cloudy	Sunny	Cloudy	Cloudy	Cloudy	Rain clouds	Rain clouds	Cloudy	Cloudy	Sunny	Sunny	Sunny	Sunny	Cloudy	Rain clouds	Cloudy	Cloudy
Cloud02	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Cloudy	Cloudy	Rain clouds	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy
Rain00	Rain	Rain	Rain clouds	Cloudy	Sunny	Rain clouds	Rain	Rain	Rain	Rain	Rain	Rain	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Cloudy	Sunny	Cloudy	Rain clouds	Rain	Rain
Rain01	Rain	Rain	Rain	Rain	Cloudy	Rain clouds	Rain	Rain	Cloudy	Cloudy	Rain clouds	Heavy rain	Rain	Rain	Rain	Rain	Sunny	Sunny	Cloudy	Rain clouds	Rain	Rain	Rain	Rain
Rain02	Rain	Rain	Rain	Rain clouds	Rain	Sunny	Rain clouds	Rain	Rain	Rain	Cloudy	Rain	Rain	Rain	Rain clouds	Heavy rain	Rain	Rain	Rain	Rain clouds	Cloudy	Rain	Rain	Rain
Rain03	Rain	Rain clouds	Rain	Rain	Heavy rain	Heavy rain	Rain	Rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Rain	Rain	Rain	Rain	Rain	Cloudy	Rain clouds	Rain	Rain	Rain	Rain	Rain
Rain04	Rain	Rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Rain	Heavy rain	Heavy rain	Heavy rain	Rain	Rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Rain	Rain	Rain	Heavy rain	Heavy rain	Rain
Rain05	Heavy rain	Heavy rain	Rain	Rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Heavy rain	Rain	Rain	Cloudy	Sunny	Rain clouds	Rain	Rain	Heavy rain	Rain
FineCloud00	Rain	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Sunny	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Rain clouds	Rain clouds	Cloudy
FineCloud01	Cloudy	Sunny	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Cloudy	Rain clouds	Rain	Rain	Cloudy	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy
FineCloud02	Cloudy	Clear	Sunny	Clear	Sunny	Sunny	Cloudy	Cloudy	Sunny	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Rain clouds	Rain clouds	Rain	Rain	Rain	Cloudy	Cloudy	Cloudy
CloudFine00	Rain clouds	Rain	Rain	Cloudy	Rain	Sunny⁶	Cloudy	Sunny	Cloudy	Cloudy	Sunny	Sunny	Clear	Sunny	Sunny	Sunny	Sunny	Clear	Clear	Clear	Sunny	Sunny	Sunny	Sunny
CloudFine01	Sunny	Rain	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Rain	Sunny⁶	Sunny	Cloudy	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Sunny	Clear	Clear	Sunny	Sunny
CloudFine02	Clear	Cloudy	Rain clouds	Rain	Cloudy	Rain clouds	Rain	Sunny⁶	Sunny	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Clear	Clear	Sunny	Clear	Sunny	Sunny	Sunny	Sunny	Sunny
FineRain00	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Clear	Sunny	Rain	Sunny⁶	Sunny	Sunny	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Sunny	Clear	Clear	Sunny	Sunny	Sunny
FineRain01	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Sunny	Rain	Cloudy	Rain	Sunny⁶	Sunny	Sunny	Clear	Sunny	Sunny	Sunny	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Sunny
FineRain02	Clear	Clear	Sunny	Clear	Sunny	Clear	Sunny	Clear	Sunny	Sunny	Heavy rain	Cloudy	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Clear	Clear	Sunny	Sunny
FineRain03	Sunny	Sunny	Sunny	Clear	Sunny	Clear	Clear	Sunny	Sunny	Heavy rain	Rain	Sunny⁶	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear	Clear	Sunny	Clear	Sunny
CloudRain00	Rain	Cloudy	Cloudy	Sunny	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Heavy rain	Heavy rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain
CloudRain01	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Rain	Rain	Rain	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Rain	Rain	Cloudy	Rain	Rain	Rain	Rain	Rain	Rain	Cloudy
CloudRain02	Rain	Cloudy	Cloudy	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Rain clouds	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain clouds	Heavy rain	Heavy rain	Rain	Heavy rain	Rain
RainCloud00	Cloudy	Rain	Rain	Cloudy	Cloudy	Rain clouds	Rain	Rain	Cloudy	Rain clouds	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy
RainCloud01	Rain clouds	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Rain	Cloudy	Rain clouds	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy
RainCloud02	Rain clouds	Heavy rain	Heavy rain	Rain	Rain	Rain	Cloudy	Cloudy	Rain	Cloudy	Cloudy	Cloudy	Cloudy	Cloudy	Rain clouds	Cloudy	Rain clouds	Cloudy	Cloudy	Sunny	Sunny	Cloudy	Cloudy	Rain clouds
Commun00	Sunny	Clear	Sunny	Sunny	Sunny	Clear	Sunny	Cloudy	Clear	Sunny	Clear	Sunny	Sunny	Cloudy	Sunny	Cloudy	Sunny	Clear	Sunny	Clear	Clear	Sunny	Clear	Clear
EventDay00	Sunny	Clear	Sunny	Sunny	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Sunny	Clear	Sunny	Clear	Sunny	Clear	Sunny	Clear	Clear	Sunny	Clear	Clear

¹ Heavy meteor shower
² Aurora during winter
³ Formerly was sunny before version 1.3.0
⁴ Formerly was cloudy before version 1.3.0
⁵ Light meteor shower
⁶ Rainbow or double rainbow

More information[edit]

In New Horizons, each hour has a weather type that is determined by a weather pattern for that day. There are 6 types of weather in all:

Clear weather happens when the sky is fully clear without any clouds.
Sunny weather happens when the sky is partially clear with a few clouds, despite its name being sunny.
Cloudy weather happens when the sky is mostly full of clouds, however they will still be white clouds.
Rain clouds weather is similar to cloudy weather, however the clouds will be a little bigger and they will be dark.
Rain weather is when the sky is fully cloudy, and droplets will fall from the sky, affecting fish and bug spawns, as well as watering flowers without the need of a watering can. During winter, rain is replaced with snow. The only difference is that rain will affect critter spawns while snow doesn't.
Heavy rain weather is similar to rainy weather, however the clouds will be dark purple and the rain droplets will fall more often. On the first hour of heavy rain after any other weather, there is a possible chance of a thunderstorm. Otherwise, the effects will stay the same to rainy weather. During winter, heavy rain is replaced with heavy snow. Heavy snow is similar to snowy weather in that it won't affect critter spawns. Heavy snow clouds are a litter lighter than heavy rain, and there can't be thunderstorms during heavy snow weather.

Examples[edit]

Clear weather
Sunny weather
Cloudy weather
Rain clouds
Rainy weather
Heavy rain/thunderstorm

Special cloud types[edit]

During certain times of the year, special clouds can appear during hours which are clear/fine or sunny. These can help to identify your day's weather pattern, and since their appearance has a random factor involved, their presence can also rule out some seeds and speed up the process.

Cumulonimbus[edit]

Possible between these dates: July 21 to September 15 (northern hemisphere), January 21 to March 15 (southern hemisphere)

These clouds appear between 9 AM and 9 PM. They appear roughly 5 minutes after the start of the hour, and disappear roughly 5 minutes before the end of the hour.

Example images:

☀️ Clear/Fine
🌤 Sunny

Cirrus or cirrocumulus[edit]

Possible between these dates: September 16 to November 30 (northern hemisphere), March 16 to May 31 (southern hemisphere)

This period has two kinds of special clouds: cirrus (on days with patterns named 'FineXX') and cirrocumulus (on days with other patterns).

These clouds appear between 6 AM and 4 AM. They can last multiple hours, but will only appear once in a day, so if they disappear at any point, they won't come back later that day. They appear roughly 10 minutes after the start of the hour, and disappear roughly 10 minutes before the end of the hour.

Example images:

Cirrus (☀️ Clear/Fine)
Cirrus (🌤 Sunny)
Cirrocumulus (☀️ Clear/Fine)
Cirrocumulus (🌤 Sunny)

Billow clouds[edit]

Possible between these dates: December 1 to February 29 (northern hemisphere), June 1 to August 31 (southern hemisphere)

These clouds appear between 6 AM and 5 PM. They can last multiple hours, but will only appear once in a day, so if they disappear at any point, they won't come back later that day. They appear roughly 10 minutes after the start of the hour, and disappear roughly 15 minutes before the end of the hour.

Be careful with these: during the evening, they can be quite difficult to identify!

Example images:

☀️ Clear/Fine
🌤 Sunny

Thin clouds[edit]

Possible between these dates: March 1 to May 31 (northern hemisphere), September 1 to November 30 (southern hemisphere)

These clouds may appear between 6 AM and 4 AM. They can last multiple hours, but will only appear once in a day, so if they disappear at any point, they won't come back later that day. They appear roughly 5 minutes after the start of the hour, and disappear roughly 10 minutes before the end of the hour.

Example images:

☀️ Clear/Fine
🌤 Sunny

Wind patterns[edit]

The wind for a day will depend on the weather pattern for that day. Every weather pattern will list the possible wind for each hour. The wind speed can range from 0-5, with 0 being calm and 5 being strong winds. All of these wind speeds are categorized in up to 4 groups:

Calm wind will always have a wind speed of 0. It only happens if the wind direction is changing. This will always occur 2 times each day, regardless of the pattern of the day: one in the morning at 6 AM, 7 AM, or 8 AM and one in the evening at 6 PM or 7 PM.
Weak wind will have a wind speed of 0-3, depending on the island's weather seed.
Normal wind will have a wind speed of 1-4, depending on the island's weather seed.
Strong wind will have a wind speed of 3-5, depending on the island's weather seed.

There are also 2 directions that the wind can blow at a certain time: west and east. Basically, when a new island is created, the game chooses one direction as the sea wind during the daytime, and the other direction gets assigned as the land wind during the nighttime.

Wind patterns table[edit]

The following lists the possible wind patterns for each hour for each weather pattern^[2]:


Pattern	5 AM	6 AM	7 AM	8 AM	9 AM	10 AM	11 AM	12 PM	1 PM	2 PM	3 PM	4 PM	5 PM	6 PM	7 PM	8 PM	9 PM	10 PM	11 PM	12 AM	1 AM	2 AM	3 AM	4 AM
Fine00	Weak land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land
Fine01	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Strong sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Weak land	Normal land	Weak land	Normal land	Normal land	Normal land
Fine02	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Strong sea	Normal sea	Normal sea	Weak sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land	Normal land
Fine03	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Weak land	Normal land	Strong land	Normal land	Normal land	Strong land
Fine04	Normal land	Weak land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Normal sea	Strong sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land
Fine05	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Weak land	Normal land	Weak land	Normal land	Strong land	Normal land	Normal land
Fine06	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land
Cloud00	Normal land	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Normal sea	Weak sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Weak land	Normal land	Weak land	Normal land	Strong land	Strong land
Cloud01	Weak land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Normal sea	Weak sea	Weak sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land	Normal land	Strong land
Cloud02	Normal land	Calm	Weak sea	Weak sea	Normal sea	Normal sea	Normal sea	Weak sea	Weak sea	Weak sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land	Normal land
Rain00	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land
Rain01	Normal land	Calm	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Normal land	Normal land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land
Rain02	Strong land	Weak land	Calm	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Normal land	Normal land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land
Rain03	Normal land	Calm	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Normal sea	Strong sea	Strong sea	Normal sea	Weak sea	Normal sea	Calm	Weak land	Normal land	Normal land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land
Rain04	Strong land	Normal land	Calm	Normal sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Normal land	Normal land	Strong land	Normal land	Strong land	Normal land	Weak land	Weak land	Normal land	Normal land
Rain05	Weak land	Calm	Weak sea	Normal sea	Strong sea	Normal sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Normal sea	Weak sea	Calm	Weak land	Normal land	Strong land	Normal land	Weak land	Weak land	Normal land	Strong land	Normal land
FineCloud00	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Weak land	Strong land	Normal land	Normal land	Strong land
FineCloud01	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Normal land	Normal land	Weak land	Strong land	Normal land	Strong land	Normal land	Normal land
FineCloud02	Weak land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Strong land	Normal land	Weak land	Strong land	Normal land	Strong land
CloudFine00	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land	Normal land	Strong land
CloudFine01	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Weak land	Weak land	Weak land	Normal land	Normal land	Strong land
CloudFine02	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land	Normal land
FineRain00	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land
FineRain01	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Weak land	Weak land	Normal land	Strong land	Weak land	Strong land
FineRain02	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Strong land	Normal land	Normal land	Strong land
FineRain03	Normal land	Weak land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Weak land	Weak land	Normal land	Strong land	Strong land	Strong land
CloudRain00	Normal land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Strong sea	Normal sea	Normal sea	Strong sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Strong land	Normal land	Weak land	Weak land	Normal land	Strong land
CloudRain01	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Weak sea	Normal sea	Strong sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Normal land	Normal land	Strong land	Normal land	Strong land	Normal land
CloudRain02	Normal land	Weak land	Calm	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Normal land	Strong land	Strong land	Normal land	Weak land	Normal land	Strong land
RainCloud00	Normal land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Weak sea	Weak sea	Normal sea	Normal sea	Strong sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Normal land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land	Strong land
RainCloud01	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Normal land	Normal land	Strong land	Normal land	Strong land	Strong land
RainCloud02	Weak sea¹	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Weak sea	Normal sea	Strong sea	Strong sea	Normal sea	Normal sea	Weak sea	Calm	Weak land	Weak land	Weak land	Normal land	Strong land	Normal land	Weak land	Normal land	Weak land	Strong land
Commun00	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Strong sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Weak land	Normal land	Weak land	Normal land	Normal land	Normal land
EventDay00	Normal land	Weak land	Calm	Weak sea	Weak sea	Weak sea	Normal sea	Strong sea	Weak sea	Normal sea	Strong sea	Normal sea	Weak sea	Weak sea	Calm	Weak land	Weak land	Weak land	Weak land	Normal land	Weak land	Normal land	Normal land	Normal land

¹ It is unknown if the 5 AM weak sea in RainCloud02 was intended or a mistake by the developers.

Weather probabilities[edit]

Northern hemisphere[edit]

The following table list the probabilities that a specific weather seed will have a specific pattern for a certain day in the northern hemisphere^[3]:


Dates	Length (days)	Fine00	Fine01	Fine02	Fine03	Fine04	Fine05	Fine06	Cloud00	Cloud01	Cloud02	Rain00	Rain01	Rain02	Rain03	Rain04	Rain05	FineCloud00	FineCloud01	FineCloud02	CloudFine00	CloudFine01	CloudFine02	FineRain00	FineRain01	FineRain02	FineRain03	CloudRain00	CloudRain01	CloudRain02	RainCloud00	RainCloud01	RainCloud02	Commun00¹	EventDay00
January 1	1	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	90%
January 2 - January 4	3	4%	16%	16%	16%	16%	16%	16%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
January 5 - February 23	50	4%	7%	10%	7%	10%	7%	10%	1%	1%	1%	3%	3%	3%	3%	3%	3%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%
February 24	1	4%	12%	10%	12%	10%	12%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	10%	10%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
February 25 - March 31	36	4%	8%	10%	8%	10%	8%	10%	3%	3%	3%	2%	2%	2%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	3%	3%	3%	2%	2%	2%	0%	0%
April 1 - April 10	10	4%	18%	14%	18%	14%	18%	14%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
April 11 - June 15	66	2%	7%	10%	7%	10%	7%	10%	4%	4%	4%	3%	3%	3%	2%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%
June 16 - July 5	20	2%	0%	8%	0%	8%	0%	8%	3%	3%	5%	10%	10%	10%	3%	3%	3%	1%	1%	1%	1%	1%	1%	0%	0%	0%	0%	3%	3%	3%	3%	3%	3%	0%	0%
July 6 - July 31	26	2%	10%	10%	10%	10%	10%	10%	1%	1%	2%	1%	1%	1%	1%	1%	1%	2%	2%	2%	2%	2%	2%	5%	5%	3%	3%	0%	0%	0%	0%	0%	0%	0%	0%
August 1 - August 31	31	2%	11%	10%	11%	10%	11%	10%	1%	1%	1%	0%	0%	0%	0%	0%	0%	0%	0%	0%	2%	2%	2%	3%	3%	10%	10%	0%	0%	0%	0%	0%	0%	0%	0%
September 1 - September 15	15	3%	6%	10%	6%	10%	6%	10%	0%	0%	0%	2%	2%	2%	3%	3%	3%	0%	0%	0%	0%	0%	0%	8%	8%	6%	6%	1%	1%	1%	1%	1%	1%	0%	0%
September 16 - September 30	15	3%	9%	10%	9%	10%	9%	10%	2%	2%	1%	2%	2%	2%	2%	2%	2%	1%	1%	1%	2%	2%	2%	4%	4%	0%	0%	1%	1%	1%	1%	1%	1%	0%	0%
October 1 - November 15	46	3%	10%	10%	10%	10%	10%	10%	2%	2%	2%	2%	2%	2%	1%	1%	1%	2%	4%	4%	2%	2%	2%	3%	3%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
November 16 - November 24	9	2%	18%	10%	18%	10%	18%	10%	7%	7%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
November 25	1	2%	15%	15%	15%	15%	15%	15%	4%	4%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
November 26 - December 9	14	2%	10%	9%	10%	9%	9%	9%	3%	3%	3%	3%	3%	3%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%
December 10	1	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	30%	40%	30%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
December 11 - December 23	13	4%	3%	9%	3%	9%	3%	9%	2%	2%	2%	5%	5%	5%	3%	3%	3%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	3%	3%	3%	3%	3%	3%	0%	0%
December 24 - December 30	7	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	15%	15%	15%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	15%	15%	15%	0%	0%	0%	0%	0%
December 31	1	4%	20%	21%	19%	19%	9%	8%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%

¹ Commun00 is the weather on Harv's Island, therefore it is not possible for that pattern to occur on normal weather seeds.

Southern hemisphere[edit]

The following table list the probabilities that a specific weather seed will have a specific pattern for a certain day in the southern hemisphere^[4]:


Dates	Length (days)	Fine00	Fine01	Fine02	Fine03	Fine04	Fine05	Fine06	Cloud00	Cloud01	Cloud02	Rain00	Rain01	Rain02	Rain03	Rain04	Rain05	FineCloud00	FineCloud01	FineCloud02	CloudFine00	CloudFine01	CloudFine02	FineRain00	FineRain01	FineRain02	FineRain03	CloudRain00	CloudRain01	CloudRain02	RainCloud00	RainCloud01	RainCloud02	Commun00¹	EventDay00
Janurary 1	1	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	90%
January 2 - January 4	3	4%	16%	16%	16%	16%	16%	16%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
January 5 - January 31	27	2%	10%	10%	10%	10%	10%	10%	1%	1%	2%	1%	1%	1%	1%	1%	1%	2%	2%	2%	2%	2%	2%	5%	5%	3%	3%	0%	0%	0%	0%	0%	0%	0%	0%
February 1 - February 29	29	2%	11%	10%	11%	10%	11%	10%	1%	1%	1%	1%	1%	1%	1%	1%	1%	1%	1%	0%	2%	2%	2%	4%	4%	5%	5%	0%	0%	0%	0%	0%	0%	0%	0%
March 1 - March 15	15	3%	6%	10%	6%	10%	6%	10%	2%	2%	2%	2%	2%	2%	3%	3%	3%	1%	1%	1%	1%	1%	1%	4%	4%	4%	4%	1%	1%	1%	1%	1%	1%	0%	0%
March 16 - March 31	16	3%	9%	10%	9%	10%	9%	10%	2%	2%	1%	2%	2%	2%	2%	2%	2%	1%	1%	1%	2%	2%	2%	4%	4%	0%	0%	1%	1%	1%	1%	1%	1%	0%	0%
April 1 - May 15	45	3%	9%	10%	9%	10%	9%	10%	3%	3%	3%	2%	2%	2%	1%	1%	1%	2%	2%	2%	2%	2%	2%	3%	3%	0%	0%	1%	1%	0%	1%	1%	0%	0%	0%
May 16 - May 24	9	2%	15%	15%	15%	14%	11%	10%	3%	3%	0%	0%	0%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
May 25	1	2%	12%	12%	13%	11%	10%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	10%	10%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
May 26 - June 9	15	2%	10%	10%	10%	9%	9%	8%	3%	3%	3%	3%	3%	3%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%
June 10	1	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	30%	40%	30%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
June 11 - June 30	20	4%	3%	9%	3%	9%	3%	9%	2%	2%	2%	5%	5%	5%	3%	3%	3%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	3%	3%	3%	3%	3%	3%	0%	0%
July 1 - August 23	54	4%	7%	10%	7%	10%	7%	10%	1%	1%	1%	3%	3%	3%	3%	3%	3%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%
August 24	1	4%	12%	10%	12%	10%	12%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	10%	10%	10%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
August 25 - September 30	37	4%	8%	10%	8%	10%	8%	10%	3%	3%	3%	2%	2%	2%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%	0%	0%	3%	3%	3%	2%	2%	2%	0%	0%
October 1 - October 10	10	4%	18%	14%	18%	14%	18%	14%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%
October 11 - December 15	66	1%	10%	10%	10%	10%	10%	10%	6%	6%	6%	3%	3%	3%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	0%	2%	2%	2%	2%	2%	2%	0%	0%

¹ Commun00 is the weather on Harv's Island, therefore it is not possible for that pattern to occur on normal weather seeds.

References[edit]

Page source: Weather/New Horizons mechanics on Animal Crossing Wiki

[1] Weather Rates and Patterns: Weather Patterns Only sheet

[2] Weather Rates and Patterns: Wind Patterns Only sheet

[3] Weather Rates and Patterns: Weather Rates North (in %) sheet

[4] Weather Rates and Patterns: Weather Rates South (in %) sheet

[1]

[2]

[3]

[4]