The weather in August in Santa Monica

It's warm in August in Santa Monica with an average temperature of 26°C. Temperatures this month range from a low of 24°C to a high of 28°C. At night, you can expect temperatures between 18°C and 21°C.

Looking for great weather? August is a good time to be in Santa Monica. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in August for Santa Monica, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 34°C in 2018, Santa Monica reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 20°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 24°C.

Water temperature

The water temperature at Santa Monica is 27°C this month. Nice and warm for a swim.

Rainfall amount

According to weather history, there is only 8,2 mm of precipitation in August. The wind speed is around 3 Bft, mostly coming from the Southwest.

Daily weather in August for Santa Monica

Click on any day in August to get detailed info about the usual weather on that day in Santa Monica. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Santa Monica New York
Average temperature 26°C 30°C
Max. temperature 28°C 31°C
Min. temperature 18°C -5°C
Total precipitation 8,2 mm 79 mm
Rainy days 1 day 13 days

Start of August

The month of August starts in Santa Monica with warm temps, averaging around 26°C during the day and nights around 19°C.

Mid August

By mid-August, daytime temps stay steady at around 26°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of August

By the end of August, the average daytime temperature in Santa Monica is around 26°C, while nighttime temps are about 21°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

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UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Santa Monica for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in August in Santa Monica, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Santa Monica

Temperature in August in Santa Monica over the years

Precipitation charts

These charts show the average amount of precipitation in August in Santa Monica, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in August in Santa Monica

Total precipitation in August in Santa Monica over the years

Daily UV index in August in Santa Monica

This chart shows the average daily UV index in August in Santa Monica, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in August in Santa Monica

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Average weather in Santa Monica by month

Click on a month below to see detailed weather info for Santa Monica. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.