Current sea water temperature:
+68.4°F
| Minimum sea water temperature in July: | 72.0°F |
| Maximum sea water temperature in July: | 64.4°F |
| Average sea water temperature in July: | 68.5°F |
| more information | |
14 days
forecast
forecast
| Santa Catalina Island |
monthly
weather
weather
| Santa Catalina Island |
Sea water temperature for the last 10 days:
| July 12 | 68.4°F | July 7 | 67.5°F |
| July 11 | 68.4°F | July 6 | 67.6°F |
| July 10 | 68.4°F | July 5 | 67.3°F |
| July 9 | 68.2°F | July 4 | 66.7°F |
| July 8 | 68.2°F | July 3 | 67.6°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
July
July
| 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: 02:08
July 12, sunday
0300
59°F
E
4 mph
4 mph
0600
59°F
SE
3 mph
3 mph
0900
66°F
NE
2 mph
2 mph
1200
64°F
NE
6 mph
6 mph
1500
64°F
E
8 mph
8 mph
1800
64°F
E
10 mph
10 mph
2100
64°F
E
6 mph
6 mph
July 13, monday
0000
64°F
NE
6 mph
6 mph
