Current sea water temperature:
+64.4°F
| Minimum sea water temperature in April: | 66.7°F |
| Maximum sea water temperature in April: | 56.1°F |
| Average sea water temperature in April: | 61.2°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| April 26 | 64.4°F | April 21 | 64.2°F |
| April 25 | 64.4°F | April 20 | 64.0°F |
| April 24 | 64.8°F | April 19 | 64.2°F |
| April 23 | 64.4°F | April 18 | 64.4°F |
| April 22 | 64.2°F | April 17 | 65.5°F |
Monthly sea water temperature, °F
When is the warmest sea in San Diego?
Based on the data about daily sea water temperature for the last three years the warmest sea in San Diego was noticed in August, September and July.
Monthly Sea Temperatures in San Diego, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 68.9°F. The highest and lowest sea temperatures during the month were 72.3°F and 63.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 70.5°F and 63.1°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.1°F.
current
weather
weather
| San Diego |
weather in
April
April
| San Diego |
Best time for vacation in San Diego
San Diego on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Diego
Local time: 09:20
April 26, sunday
1200
66°F
E
14 mph
14 mph
1500
63°F
E
14 mph
14 mph
1800
64°F
E
12 mph
12 mph
2100
59°F
E
10 mph
10 mph
April 27, monday
0000
59°F
E
9 mph
9 mph
0300
59°F
E
10 mph
10 mph
0600
59°F
E
8 mph
8 mph
0900
61°F
E
5 mph
5 mph
