Monthly weather forecast and climate
Santa Monica, CA

The neon-lit fun park in Santa Monica, California, with a view of the iconic Ferris wheel and pier
The neon-lit fun park in Santa Monica, California, with a view of the iconic Ferris wheel and pier

Weather in January

January, the same as December, is another comfortable winter month in Santa Monica, California, with average temperature fluctuating between 65.5°F (18.6°C) and 51.4°F (10.8°C). In Santa Monica, California, the average high-temperature in January is almost the same as in December - a still comfortable 65.5°F (18.6°C). Weather in January »

Weather in February

February, the last month of the winter, in Santa Monica, is another comfortable month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 64.6°F (18.1°C). In February, the average high-temperature is almost the same as in January - a still enjoyable 64.6°F (18.1°C). Weather in February »

Weather in March

March, the first month of the spring, in Santa Monica, is still a comfortable month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 51.4°F (10.8°C). In March, the average high-temperature is practically the same as in February - a still enjoyable 66.7°F (19.3°C). Weather in March »

Weather in April

April is an agreeable spring month in Santa Monica, California, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 53.6°F (12°C). In April, the average high-temperature is almost the same as in March - a pleasant 69.4°F (20.8°C). Weather in April »

Weather in May

The last month of the spring, May, is also an agreeable month in Santa Monica, California, with average temperature fluctuating between 56.3°F (13.5°C) and 70.9°F (21.6°C). In Santa Monica, the average high-temperature is almost the same as in April - a still agreeable 70.9°F (21.6°C). Weather in May »

Weather in June

June, the first month of the summer, in Santa Monica, is a warm month, with average temperature varying between 58.8°F (14.9°C) and 74.1°F (23.4°C). In Santa Monica, the average high-temperature in June is essentially the same as in May - a moderately hot 74.1°F (23.4°C). Weather in June »

Weather in July

July, like June, in Santa Monica, California, is a moderately hot summer month, with average temperature varying between 78.6°F (25.9°C) and 63.1°F (17.3°C). In July, the average high-temperature is practically the same as in June - a still warm 78.6°F (25.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Santa Monica, California, with average temperature varying between 64.4°F (18°C) and 80.8°F (27.1°C). August is the warmest month, with an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 64.4°F (18°C). The average heat index in August is calculated to 83.1°F (28.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Santa Monica, California, with average temperature ranging between min 63.7°F (17.6°C) and max 80.2°F (26.8°C). In Santa Monica, the average high-temperature is almost the same as in August - a still moderately hot 80.2°F (26.8°C). Weather in September »

Weather in October

October, like September, in Santa Monica, California, is another warm autumn month, with average temperature fluctuating between 76.1°F (24.5°C) and 61°F (16.1°C). In October, the average high-temperature is essentially the same as in September - a still moderately hot 76.1°F (24.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Santa Monica, California, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 56.1°F (13.4°C). In Santa Monica, the average high-temperature slightly decreases, from a warm 76.1°F (24.5°C) in October, to an agreeable 70°F (21.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a comfortable month in Santa Monica, California, with average temperature ranging between max 63.9°F (17.7°C) and min 50.7°F (10.4°C). The coldest month is December, with an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 50.7°F (10.4°C). Weather in December »
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FAQ

How many days does it rain in Santa Monica?

Throughout the year, in Santa Monica, California, there are 48.8 rainfall days, and 7.52" (191mm) of precipitation is accumulated.

What is the wettest month in Santa Monica?

The month with the most rainfall in Santa Monica is January when the rain falls for 5.4 days and typically aggregates up to 1.54" (39mm) of precipitation.

What are the months with the coldest ocean in Santa Monica?

January through May and December, with an average ocean temperature of 59°F (15°C), are months with the coldest seawater in Santa Monica.

When is the lowest UV index in Santa Monica?

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Santa Monica.

What is the month with the least sunshine in Santa Monica?

February and December, with an average of 6.6h of sunshine, are months with the least sunshine in Santa Monica, California.

What is the most humid month in Santa Monica?

With an average relative humidity of 69%, June is the most humid month.

What is the driest month in Santa Monica?

June and August are months with the least rain in Santa Monica when the rain falls for 2.3 days and typically aggregates up to 0.08" (2mm) of rain.

When are the longest days in Santa Monica?

The month with the longest days is June, with an average of 14.4h of daylight.

What are the months with the highest UV index in Santa Monica?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

What are the months with the most sunshine in Santa Monica?

July and August, with an average of 11.9h of sunshine, are months with the most sunshine.

What is the warmest month in Santa Monica?

With an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 64.4°F (18°C), August is the warmest month.

What months are the ocean warmest in Santa Monica?

August through October, with an average ocean temperature of 66.2°F (19°C), are months with the warmest seawater.

What is the least humid month in Santa Monica?

The least humid month is November, with an average relative humidity of 52%.

What is the coldest month in Santa Monica?

December is the coldest month in Santa Monica, with an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 50.7°F (10.4°C).

What is the month with the shortest days in Santa Monica?

December has the shortest days of the year, with an average of 9.9h of daylight.

Average temperature
Santa Monica, CA

Average temperature - Santa Monica, CA

The warmest month (with the highest average high temperature) is August (80.8°F).
The month with the lowest average high temperature is December (63.9°F).

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).

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Average pressure
Santa Monica, CA

Average pressure - Santa Monica, CA

The month with the highest atmospheric pressure is January (30.1").
Months with the lowest atmospheric pressure are June and September (29.9").

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Average wind speed
Santa Monica, CA

Average wind speed - Santa Monica, CA

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August and September (4.8mph).

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Average rainfall
Santa Monica, CA

Average rainfall - Santa Monica, CA

The wettest month (with the highest rainfall) is January (1.54").
The driest months (with the least rainfall) are June and August (0.08").

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Average rainfall days
Santa Monica, CA

Average rainfall days - Santa Monica, CA

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is August (1.8 days).

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Average sea temperature
Santa Monica, CA

Average sea temperature - Santa Monica, CA

The best months for swimming (with the highest average sea temperature) are August, September and October (66°F).
The coldest months (with the lowest average sea temperature) are January, February, March, April, May and December (59°F).

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Average daylight / Average sunshine
Santa Monica, CA

Average daylight / Average sunshine - Santa Monica, CA

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

Months with the most sunshine are July and August (Average sunshine: 11.9h).
Months with the least sunshine are February and December (Average sunshine: 6.6).

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Average sunshine days
Santa Monica, CA

Average sunshine days - Santa Monica, CA

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (21.8 days).

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Average UV index
Santa Monica, CA

Average UV index - Santa Monica, CA

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average visibility
Santa Monica, CA

Average visibility - Santa Monica, CA

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

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