Measurements:
°C
°F
Santa Catalina Island
58°F
NW 6 mph
Feels like: 56°F
Precip: 0%
World Resorts USA Santa Catalina Island Weather

Santa Catalina Island Sea Water Temperature

Current Sea Water Temperature:
+61.2°F
Maximum Sea Water Temperature in April: 65.6°F
Minimum Sea Water Temperature in April: 57.0°F
Average water temperature in April: 61.1°F

Sea Water Temperature for the Last 10 Days:

April 28 61.2°F April 23 61.4°F
April 27 61.4°F April 22 61.6°F
April 26 61.4°F April 21 61.4°F
April 25 61.4°F April 20 61.0°F
April 24 61.8°F April 19 60.4°F

When is the Warmest Sea for Santa Catalina Island?

According to our data for the last three years for Santa Catalina Island 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: 2023 2022 2021

The average sea surface temperature in August 2023 for Santa Catalina Island was 72.1°F. The maximum and minimum values were 70.8°F and 74.0°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Santa Catalina Island was 71.8°F. The maximum and minimum values were 69.4°F and 74.6°F respectively.

Sea Water Temperature in July

Select Year: 2023 2022 2021

The average sea surface temperature in July 2023 for Santa Catalina Island was 69.7°F. The maximum and minimum values were 66.2°F and 74.2°F respectively.

Best Time to Visit Santa Catalina Island
The most sunny months:
July 30 days
August 29 days
September 27 days
The most warm months:
August 82.0 °F
September 81.4 °F
July 80.4 °F
Warmest sea temperature:
August 72.9 °F
September 72.9 °F
July 70.8 °F
The most cold months:
March 63.3 °F
January 64.6 °F
December 64.6 °F
The most rainy months:
December 3 days
January 2 days
February 1 day
The most windy months:
March 8 mph
April 7 mph
May 7 mph

Santa Catalina Island on the Weather Map

USA Resorts:
NAME
Boston +44
Chicago +62
Hawaii +76
Honolulu +76
Houston +76
Las Vegas +62
Los Angeles +60
Miami +78
New York +52
Orlando +68
San Diego +58
San Francisco +52
Sarasota +70
Tampa +70
Washington +54
24 Hours Weather Forecast
Santa Catalina Island
Local time: 01:37
28 apr, sunday
0300 58°F
NW
6 mph
0600 60°F
NW
7 mph
0900 62°F
NW
5 mph
1200 64°F
NE
2 mph
1500 58°F
NE
8 mph
1800 56°F
E
9 mph
2100 56°F
N
4 mph
29 apr, monday
0000 56°F
NW
4 mph