Santa Monica Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Santa Monica, California during each month of the year.

The average high and low temperatures are listed below for Santa Monica, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 60, 70 or 80 °F monthly and annually in Santa Monica, scroll down farther. There are also counts of days with cool weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather recorded at the Santa Monica Pier.

10-year temperature averages for Santa Monica, 2010 to 2019
High °F Low °F   High °C Low °C
68 49 January 20 10
66 49 February 19 10
68 52 March 20 11
69 54 April 21 12
68 57 May 20 14
71 60 June 22 16
75 64 July 24 18
77 64 August 25 18
78 64 September 25 18
76 60 October 25 15
72 53 November 22 12
66 49 December 19 9
71 56 Year 22 14
30-year temperature averages for Santa Monica, 1991 to 2020
High °F Low °F   High °C Low °C
62 50 January 17 10
62 50 February 17 10
62 52 March 17 11
63 53 April 17 12
63 56 May 17 13
66 59 June 19 15
69 62 July 21 16
70 62 August 21 17
70 61 September 21 16
68 59 October 20 15
67 54 November 19 12
63 50 December 17 10
66 56 Year 19 13

Days of Hot Weather in Santa Monica

A hot spell in Santa Monica means highs reaching the 80s F, which can occur any month of the year. The ocean city averages just one day a year when the temperature climbs to 90 °F (32 °C) or above. The hottest days of the year usually arrive in October.

Days per month in Santa Monica of at least 60, 70 or 80 °F
  60 °F
16 °C
70 °F
21 °C
80 °F
27 °C
January 21 5 1
February 19 4 1
March 22 3 0
April 22 3 1
May 28 2 0
June 30 3 0
July 31 11 0
August 31 14 1
September 30 12 1
October 31 9 2
November 28 7 1
December 24 4 0
Year 316 75 8

How Often Santa Monica Has Cold Temperatures

It never gets really cold in Santa Monica. Temperatures below freezing are not expected here. Indeed, most years never even drop down to 40 °F (4.4 °C).

Average number of days with low temperatures of 50 and 60 °F or cooler in Santa Monica
  50 °F
4 °C
60 °F
10 °C
January 14 30
February 10 28
March 8 31
April 3 29
May 0 27
June 0 19
July 0 7
August 0 5
September 0 7
October 0 20
November 3 28
December 14 31
Year 52 261
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

California Temperatures
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