Measurements:
°C
°F
Santa Monica
56°F
W 5 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Santa Monica Weather

Santa Monica Sea Water Temperature

Current Sea Water Temperature:
+65.2°F
Maximum Sea Water Temperature in April: 65.8°F
Minimum Sea Water Temperature in April: 54.2°F
Average water temperature in April: 60.0°F

Sea Water Temperature for the Last 10 Days:

April 03 65.2°F March 29 65.6°F
April 02 65.8°F March 28 65.4°F
April 01 65.6°F March 27 65.4°F
March 31 65.8°F March 26 65.4°F
March 30 65.8°F March 25 65.8°F

When is the Warmest Sea for Santa Monica?

According to our data for the last three years for Santa Monica the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Santa Monica was 72.8°F. The maximum and minimum values were 69.6°F and 75.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Santa Monica was 72.6°F. The maximum and minimum values were 69.4°F and 75.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Santa Monica was 69.7°F. The maximum and minimum values were 68.4°F and 71.6°F respectively.

Best Time to Visit Santa Monica
The most sunny months:
July 24 days
August 24 days
October 22 days
The most warm months:
August 83.7 °F
September 81.2 °F
July 80.8 °F
Warmest sea temperature:
August 71.1 °F
September 70.9 °F
July 70.0 °F
The most cold months:
December 65.5 °F
January 65.7 °F
February 65.9 °F
The most rainy months:
January 2 days
February 2 days
March 2 days
The most windy months:
April 7 mph
May 7 mph
March 6 mph

Santa Monica on the Weather Map

USA Resorts:
NAME
Chicago +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
Santa Monica
Local time: 02:44
03 apr, friday
0300 56°F
W
5 mph
0600 56°F
SW
2 mph
0900 64°F
SE
2 mph
1200 74°F
NE
4 mph
1500 78°F
NE
6 mph
1800 78°F
E
8 mph
2100 74°F
S
4 mph
04 apr, saturday
0000 68°F
S
6 mph