Current sea water temperature:
+72.9°F
| Minimum sea water temperature in August: | 74.5°F |
| Maximum sea water temperature in August: | 67.3°F |
| Average sea water temperature in August: | 70.8°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 23 | 72.9°F | August 18 | 73.6°F |
| August 22 | 73.0°F | August 17 | 73.8°F |
| August 21 | 72.5°F | August 16 | 73.6°F |
| August 20 | 73.2°F | August 15 | 72.3°F |
| August 19 | 73.0°F | August 14 | 72.7°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 73.4°F. The highest and lowest sea temperatures during the month were 74.5°F and 72.3°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: 14:38
August 23, sunday
1500
72°F
E
11 mph
11 mph
1800
70°F
E
14 mph
14 mph
2100
73°F
E
11 mph
11 mph
August 24, monday
0000
73°F
NE
4 mph
4 mph
0300
72°F
E
6 mph
6 mph
0600
72°F
E
3 mph
3 mph
0900
72°F
E
2 mph
2 mph
1200
73°F
E
4 mph
4 mph
