Climate and monthly weather forecast
Mendocino, CA

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Weather in January

January, the same as December, is another fresh winter month in Mendocino, California, with an average temperature fluctuating between 54.9°F (12.7°C) and 46.9°F (8.3°C). Mendocino's average high-temperature in January is a still fresh 54.9°F (12.7°C), marking an insignificant difference from the 54.3°F (12.4°C) of December. Weather in January »

Weather in February

The last month of the winter, February, is also a fresh month in Mendocino, California, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 54.3°F (12.4°C). February and December mark Mendocino's lowest temperatures, averaging a high-temperature of 54.3°F (12.4°C). Weather in February »

Weather in March

March, the first month of the spring in Mendocino, is also a fresh month, with an average temperature varying between 54.9°F (12.7°C) and 45.7°F (7.6°C). Mendocino, California, in March witnesses an average high-temperature of a still fresh 54.9°F (12.7°C), indicating a slight variation from February's 54.3°F (12.4°C). Weather in March »

Weather in April

April is a mild spring month in Mendocino, California, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 47.5°F (8.6°C). During April, Mendocino records an average high-temperature of a refreshing 56.8°F (13.8°C), marking a slight divergence from March's 54.9°F (12.7°C). Weather in April »

Weather in May

The last month of the spring, May, is another mild month in Mendocino, California, with temperature in the range of an average high of 59.7°F (15.4°C) and an average low of 49.6°F (9.8°C). May experiences an average high-temperature of a still moderate 59.7°F (15.4°C), barely different from April's 56.8°F (13.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a comfortable month in Mendocino, California, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 52.5°F (11.4°C). Mendocino ushers in June with an average high-temperature of a comfortable 63.9°F (17.7°C), showing a close resemblance to the previous month. Weather in June »

Weather in July

July, the same as June, is another enjoyable summer month in Mendocino, California, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 54.5°F (12.5°C). Mendocino experiences a minor change to a still comfortable 66.4°F (19.1°C) in average high-temperature during July, closely reflecting June. Weather in July »

Weather in August

August, the last month of the summer in Mendocino, is also an enjoyable month, with an average temperature ranging between max 66.4°F (19.1°C) and min 55°F (12.8°C). August reports an average high-temperature of a still comfortable 66.4°F (19.1°C), matching the temperature of July. Weather in August »

Weather in September

The first month of the autumn, September, is also an enjoyable month in Mendocino, California, with an average temperature varying between 54.9°F (12.7°C) and 67.5°F (19.7°C). The highest temperatures are recorded in September, with averages reaching a high of 67.5°F (19.7°C) and a low of 54.9°F (12.7°C). Weather in September »

Weather in October

October, like September, in Mendocino, California, is another refreshing autumn month, with an average temperature varying between 52.9°F (11.6°C) and 63°F (17.2°C). Mendocino's shift from September to October is accompanied by an average high-temperature of a still enjoyable 63°F (17.2°C), a slight deviation from 67.5°F (19.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Mendocino, is another refreshing month, with an average temperature fluctuating between 49.1°F (9.5°C) and 57.7°F (14.3°C). Mendocino's average high-temperature marks a moderate 57.7°F (14.3°C) with the advent of November, closely mirroring that of the preceding month. Weather in November »

Weather in December

The first month of the winter, December, is also a fresh month in Mendocino, California, with an average temperature varying between 54.3°F (12.4°C) and 46.2°F (7.9°C). February and December, with an average high-temperature of 54.3°F (12.4°C), are the coldest months. Weather in December »
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How many days does it rain?

In Mendocino, during the entire year, the rain falls for 68.4 days and collects up to 9.53" (242mm) of precipitation.

When it does not snow?

In Mendocino, California, snow does not fall in January, March through December.

How much does it snow?

In Mendocino, during the entire year, snow aggregates up to 0.04" (1mm).

What are the months with 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 month is the coldest?

Mendocino's average lowest temperatures are recorded in February and December, reaching a high of 54.3°F (12.4°C).

When does it snow?

The only month with snowfall in Mendocino is February.

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.

What months are the ocean coldest?

February and April, with an average ocean temperature of 52.2°F (11.2°C), are months with the coldest seawater.

What are the most humid months?

March, May and August, with an average relative humidity of 80%, are most humid months.

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 August are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.

When are the longest days?

June has the longest days of the year, with an average of 14h and 54min of daylight.

When is the highest UV index?

The months with the highest UV index in Mendocino are June through August, with an average maximum UV index of 5.

What are the months with the most sunshine?

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

What is the hottest time of year?

In Mendocino, the average temperatures in September are the highest, with a peak at 67.5°F (19.7°C) and a low of 54.9°F (12.7°C).

What is the least humid month?

With an average relative humidity of 75%, October is the least humid month.

What is the month with the warmest ocean?

The month with the warmest seawater is October, with an average ocean temperature of 55.8°F (13.2°C).

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 10.4 days and typically aggregates up to 1.77" (45mm) of precipitation.

What is the month with the shortest days?

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

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.5h of sunshine.

Average temperature
Mendocino, CA

Average temperature - Mendocino, CA

The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

Average pressure
Mendocino, CA

Average pressure - Mendocino, CA

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed
Mendocino, CA

Average wind speed - Mendocino, CA

The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity
Mendocino, CA

Average humidity - Mendocino, CA

The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).

Average rainfall
Mendocino, CA

Average rainfall - Mendocino, CA

The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").

Average rainfall days
Mendocino, CA

Average rainfall days - Mendocino, CA

The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).

Average snowfall
Mendocino, CA

Average snowfall - Mendocino, CA

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days
Mendocino, CA

Average snowfall days - Mendocino, CA

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature
Mendocino, CA

Average sea temperature - Mendocino, CA

The best month for swimming (with the highest average sea temperature) is October (55.6°F).
The coldest month (with the lowest average sea temperature) is April (52.1°F).

Average daylight / Average sunshine
Mendocino, CA

Average daylight / Average sunshine - Mendocino, CA

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days
Mendocino, CA

Average sunshine days - Mendocino, CA

The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).

Average UV index
Mendocino, CA

Average UV index - Mendocino, CA

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average visibility
Mendocino, CA

Average visibility - Mendocino, 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).

Mendocino, California, USA

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