Climate and monthly weather forecast
Cotati, CA

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Weather in January

January, the same as December, in Cotati, California, is another refreshing winter month, with temperature in the range of an average high of 57°F (13.9°C) and an average low of 43.2°F (6.2°C). The commencement of January records an average high-temperature of a still moderate 57°F (13.9°C), barely varying from December's 55.6°F (13.1°C). Weather in January »

Weather in February

The last month of the winter, February, is also a moderate month in Cotati, California, with an average temperature fluctuating between 58.6°F (14.8°C) and 42.6°F (5.9°C). Cotati's February showcases an average high-temperature of a still mild 58.6°F (14.8°C), hardly distinct from January's 57°F (13.9°C). Weather in February »

Weather in March

The first month of the spring, March, is still a refreshing month in Cotati, California, with an average temperature fluctuating between 60.4°F (15.8°C) and 44.1°F (6.7°C). The onset of March manifests an average high-temperature of a still moderate 60.4°F (15.8°C), demonstrating a minor variation from the preceding month. Weather in March »

Weather in April

April is an enjoyable spring month in Cotati, California, with an average temperature varying between 45.5°F (7.5°C) and 64.9°F (18.3°C). In April, Cotati notes an average high-temperature of a comfortable 64.9°F (18.3°C), hardly different from the preceding month. Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Cotati, California, with an average temperature fluctuating between 48.6°F (9.2°C) and 69.3°F (20.7°C). The beginning of May records an average high-temperature of a pleasant 69.3°F (20.7°C), marking a negligible difference from April's 64.9°F (18.3°C). Weather in May »

Weather in June

June, the first month of the summer in Cotati, is a warm month, with an average temperature ranging between max 76.5°F (24.7°C) and min 52.9°F (11.6°C). Cotati's weather shows a minor temperature rise with the arrival of June, moving from a pleasant 69.3°F (20.7°C) in May to a warm 76.5°F (24.7°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Cotati, California, with an average temperature fluctuating between 54.5°F (12.5°C) and 79.9°F (26.6°C). July and August, when the average high-temperature reaches 79.9°F (26.6°C), are the warmest months. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Cotati, California, with an average temperature fluctuating between 79.9°F (26.6°C) and 55°F (12.8°C). July and August are characterised by peak temperatures, with an average high of 79.9°F (26.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Cotati, California, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 79.3°F (26.3°C). Transitioning from August to September, Cotati observes an average high-temperature of a still moderately hot 79.3°F (26.3°C), differing subtly from the previous month. Weather in September »

Weather in October

October, the same as September, in Cotati, California, is an agreeable autumn month, with an average temperature ranging between max 72.3°F (22.4°C) and min 51.8°F (11°C). October's arrival subtly correlates with a reduction in the average high-temperature, down from a moderately hot 79.3°F (26.3°C) in September to an agreeable 72.3°F (22.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Cotati, is another comfortable month, with an average temperature fluctuating between 46°F (7.8°C) and 63.5°F (17.5°C). The onset of November is marked by a minor decrease in temperature, transitioning from an agreeable 72.3°F (22.4°C) in October to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter in Cotati, is still a mild month, with an average temperature fluctuating between 42.4°F (5.8°C) and 55.6°F (13.1°C). Cotati's coldest temperatures are experienced in December, with average high temperatures of 55.6°F (13.1°C) and lows of 42.4°F (5.8°C). Weather in December »
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, in Cotati, there are 44.3 rainfall days, and 3.78" (96mm) of precipitation is accumulated.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the wettest month?

February is the month with the most rainfall. Rain falls for 5.3 days and accumulates 0.91" (23mm) of precipitation.

What is the most humid month?

The most humid month is March, with an average relative humidity of 77%.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

What is the driest month?

June through September are months with the least rain when the rain falls for 0.8 days and typically aggregates up to 0.04" (1mm) of rain.

When are the longest days?

With an average of 14h and 48min of daylight, June has the longest days of the year.

What is the month with the highest UV index in Cotati?

June is the month with the highest UV index, with an average maximum UV index of 6.

What is the warmest month?

Cotati witnesses its highest temperatures in July and August, reaching an average of 79.9°F (26.6°C).

What month has the most sunshine?

The month with the most sunshine is July, with an average of 11.9h of sunshine.

What is the least humid month?

With an average relative humidity of 62%, September is the least humid month.

What are the coldest months?

The coldest month is December, with an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 42.4°F (5.8°C).

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

What is the month with the least sunshine in Cotati?

The month with the least sunshine is December, with an average of 5.7h of sunshine.

Average temperature
Cotati, CA

Average temperature - Cotati, CA

The warmest months (with the highest average high temperature) are July and August (79.9°F).
The month with the lowest average high temperature is December (55.6°F).

The months with the highest average low temperature are August and September (55°F).
The coldest month (with the lowest average low temperature) is December (42.4°F).

Average pressure
Cotati, CA

Average pressure - Cotati, CA

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

Average wind speed
Cotati, CA

Average wind speed - Cotati, CA

The windiest month (with the highest average wind speed) is May (6.8mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

Average humidity
Cotati, CA

Average humidity - Cotati, CA

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is September (62%).

Average rainfall
Cotati, CA

Average rainfall - Cotati, CA

The wettest month (with the highest rainfall) is February (0.91").
The driest months (with the least rainfall) are June, July, August and September (0.04").

Average rainfall days
Cotati, CA

Average rainfall days - Cotati, CA

The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (0.5 days).

Average daylight / Average sunshine
Cotati, CA

Average daylight / Average sunshine - Cotati, CA

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days
Cotati, CA

Average sunshine days - Cotati, CA

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is March (20.8 days).

Average UV index
Cotati, CA

Average UV index - Cotati, CA

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average visibility
Cotati, CA

Average visibility - Cotati, CA

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Cotati, California, USA

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