San Anselmo
California, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
San Anselmo, CA

January, like December, is another mild winter month in San Anselmo, California, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 56.1°F (13.4°C). In January, the average high-temperature is almost the same as in December - a still mild 56.1°F (13.4°C). Weather in January »

The last month of the winter, February, is also a moderate month in San Anselmo, California, with average temperature varying between 57.9°F (14.4°C) and 45.9°F (7.7°C). In San Anselmo, California, the average high-temperature is relatively the same as in January - a still mild 57.9°F (14.4°C). Weather in February »

The first month of the spring, March, is still a mild month in San Anselmo, California, with temperature in the range of an average high of 59.4°F (15.2°C) and an average low of 46.9°F (8.3°C). In San Anselmo, the average high-temperature is practically the same as in February - a still mild 59.4°F (15.2°C). Weather in March »

April in San Anselmo, California, is an enjoyable spring month, with average temperature fluctuating between 62.8°F (17.1°C) and 48.6°F (9.2°C). In San Anselmo, California, the average high-temperature in April is almost the same as in March - a comfortable 62.8°F (17.1°C). Weather in April »

May, the last month of the spring, in San Anselmo, is also an enjoyable month, with average temperature varying between 50.4°F (10.2°C) and 64.9°F (18.3°C). In San Anselmo, the average high-temperature is practically the same as in April - a still enjoyable 64.9°F (18.3°C). Weather in May »

June, the first month of the summer, in San Anselmo, is a pleasant month, with average temperature fluctuating between 69.1°F (20.6°C) and 53.2°F (11.8°C). In San Anselmo, the average high-temperature is relatively the same as in May - an agreeable 69.1°F (20.6°C). Weather in June »

July, the same as June, in San Anselmo, California, is another pleasant summer month, with average temperature varying between 70.5°F (21.4°C) and 54.3°F (12.4°C). In San Anselmo, the average high-temperature in July is practically the same as in June - a still pleasant 70.5°F (21.4°C). Weather in July »

August, the last month of the summer, in San Anselmo, is another pleasant month, with average temperature fluctuating between 71.2°F (21.8°C) and 55.4°F (13°C). In San Anselmo, the average high-temperature in August is essentially the same as in July - a still pleasant 71.2°F (21.8°C). Weather in August »

September, the first month of the autumn, in San Anselmo, is still a pleasant month, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 56.1°F (13.4°C). September is the warmest month, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C). Weather in September »

October, the same as September, in San Anselmo, California, is another pleasant autumn month, with average temperature fluctuating between 54.3°F (12.4°C) and 68.9°F (20.5°C). In San Anselmo, the average high-temperature is relatively the same as in September - a still pleasant 68.9°F (20.5°C). Weather in October »

The last month of the autumn, November, is another comfortable month in San Anselmo, California, with average temperature ranging between min 49.6°F (9.8°C) and max 61.5°F (16.4°C). In November, the average high-temperature marginally drops, from a pleasant 68.9°F (20.5°C) in October, to an enjoyable 61.5°F (16.4°C). Weather in November »

The first month of the winter, December, is also a moderate month in San Anselmo, California, with average temperature varying between 45.3°F (7.4°C) and 55.4°F (13°C). December is the coldest month, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C). Weather in December »

How much does it rain in San Anselmo?

In San Anselmo, during the entire year, the rain falls for 48 days and collects up to 3.94" (100mm) of precipitation.

What are the months with the lowest UV index in San Anselmo?

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

What is the rainiest month in San Anselmo?

The month with the most rainfall is February when the rain falls for 5.3 days and typically aggregates up to 0.87" (22mm) of precipitation.

What is the most humid month in San Anselmo?

March is the most humid month in San Anselmo, with an average relative humidity of 77%.

When is the highest UV index in San Anselmo?

April, June through September, with an average maximum UV index of 5, are months with the highest UV index.

What is the driest month in San Anselmo?

Months with the least rainfall are June through September Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.

When are the longest days in San Anselmo?

The month with the longest days is June, with an average of 14.8h of daylight.

What month has the most sunshine in San Anselmo?

July has the most sunshine of the year in San Anselmo, California, with an average of 11.2h of sunshine.

What is the warmest month in San Anselmo?

September is the warmest month in San Anselmo, California, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C).

What is the least humid month in San Anselmo?

The least humid month in San Anselmo, California, is October, with an average relative humidity of 68%.

What is the coldest month in San Anselmo?

The coldest month is December, with an average high-temperature of 55.4°F (13°C) and an average low-temperature of 45.3°F (7.4°C).

What is the month with the shortest days in San Anselmo?

The month with the shortest days in San Anselmo, California, is December, with an average of 9.6h of daylight.

What is the month with the least sunshine in San Anselmo?

The month with the least sunshine in San Anselmo is December, with an average of 5.5h of sunshine.
Average temperature - San Anselmo, CA
Average rainfall - San Anselmo, CA

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

Average rainfall days - San Anselmo, CA

The month with the highest number of rainy days is March (8.8 days).
Months with the least rainy days are June and August (1.2 days).

Average daylight / Average sunshine - San Anselmo, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is December (Average sunshine: 5.5h).

Average UV index - San Anselmo, CA

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