Current sea water temperature:
+64.2°F
| Minimum sea water temperature in April: | 64.8°F |
| Maximum sea water temperature in April: | 56.3°F |
| Average sea water temperature in April: | 60.4°F |
| more information | |
14 days
forecast
forecast
| Santa Catalina Island |
monthly
weather
weather
| Santa Catalina Island |
Sea water temperature for the last 10 days:
| April 26 | 64.2°F | April 21 | 64.6°F |
| April 25 | 64.8°F | April 20 | 64.0°F |
| April 24 | 64.2°F | April 19 | 64.0°F |
| April 23 | 64.4°F | April 18 | 63.0°F |
| April 22 | 64.2°F | April 17 | 63.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Santa Catalina Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Santa Catalina Island was noticed in August, September and July.
Monthly Sea Temperatures in Santa Catalina Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 71.8°F and 68.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 70.6°F. The highest and lowest sea temperatures during the month were 72.0°F and 69.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 69.1°F and 65.3°F.
current
weather
weather
| Santa Catalina Island |
weather in
April
April
| Santa Catalina Island |
Best time for vacation in Santa Catalina Island
Santa Catalina Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Santa Catalina Island
Local time: 12:34
April 26, sunday
1500
61°F
E
17 mph
17 mph
1800
61°F
E
17 mph
17 mph
2100
55°F
E
14 mph
14 mph
April 27, monday
0000
57°F
E
13 mph
13 mph
0300
55°F
E
12 mph
12 mph
0600
55°F
SE
12 mph
12 mph
0900
55°F
E
12 mph
12 mph
1200
55°F
E
14 mph
14 mph
