Measurements:
°C
°F
Santa Monica
68°F
N 9 mph
Feels like: 68°F
Precip: 0%
World Resorts USA Santa Monica Weather

Santa Monica Sea Water Temperature

Current Sea Water Temperature:
+66.0°F
Maximum Sea Water Temperature in May: 70.0°F
Minimum Sea Water Temperature in May: 56.8°F
Average water temperature in May: 63.0°F

Sea Water Temperature for the Last 10 Days:

May 14 66.0°F May 09 63.8°F
May 13 65.0°F May 08 63.0°F
May 12 65.0°F May 07 62.6°F
May 11 64.2°F May 06 62.8°F
May 10 63.8°F May 05 62.8°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
Boston +56
Chicago +58
Hawaii +78
Honolulu +78
Houston +104
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Santa Monica
Local time: 11:58
14 may, thursday
1200 68°F
N
9 mph
1500 68°F
NE
9 mph
1800 64°F
NE
7 mph
2100 64°F
NE
4 mph
15 may, friday
0000 64°F
N
4 mph
0300 62°F
N
3 mph
0600 62°F
NW
4 mph
0900 66°F
NW
7 mph