Current sea water temperature:
+73.6°F
| Minimum sea water temperature in August: | 74.3°F |
| Maximum sea water temperature in August: | 67.3°F |
| Average sea water temperature in August: | 70.5°F |
| more information | |
14 days
forecast
forecast
| Santa Catalina Island |
monthly
weather
weather
| Santa Catalina Island |
Sea water temperature for the last 10 days:
| August 2 | 73.6°F | July 28 | 72.0°F |
| August 1 | 72.7°F | July 27 | 72.7°F |
| July 31 | 73.0°F | July 26 | 71.6°F |
| July 30 | 72.0°F | July 25 | 71.2°F |
| July 29 | 72.0°F | July 24 | 71.1°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 69.6°F. The highest and lowest sea temperatures during the month were 73.0°F and 66.7°F.
current
weather
weather
| Santa Catalina Island |
weather in
August
August
| 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: 10:29
August 02, sunday
1200
75°F
NE
6 mph
6 mph
1500
84°F
E
9 mph
9 mph
1800
75°F
E
9 mph
9 mph
2100
70°F
E
7 mph
7 mph
August 03, monday
0000
66°F
NE
4 mph
4 mph
0300
66°F
E
4 mph
4 mph
0600
66°F
E
4 mph
4 mph
0900
66°F
NE
3 mph
3 mph
