Measurements:
°C
°F
Santa Monica
64°F
NE 5 mph
Feels like: 64°F
Precip: 31%
World Resorts USA Santa Monica Weather

Santa Monica Sea Water Temperature

Current Sea Water Temperature:
+67.8°F
Maximum Sea Water Temperature in June: 72.4°F
Minimum Sea Water Temperature in June: 55.4°F
Average water temperature in June: 66.4°F

Sea Water Temperature for the Last 10 Days:

June 24 67.8°F June 19 67.8°F
June 23 67.2°F June 18 68.0°F
June 22 66.6°F June 17 69.0°F
June 21 65.8°F June 16 69.0°F
June 20 67.2°F June 15 69.4°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:
August 24 days
July 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 +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +94
Los Angeles +66
Maui +74
Miami +80
Miami Beach +82
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Santa Monica
Local time: 22:23
25 jun, thursday
0000 62°F
N
3 mph
0300 62°F
NE
3 mph
0600 62°F
N
3 mph
0900 66°F
N
5 mph
1200 72°F
N
9 mph
1500 74°F
NE
9 mph
1800 72°F
NE
8 mph
2100 68°F
NE
4 mph