Current sea water temperature:
+66.4°F
| Minimum sea water temperature in April: | 66.4°F |
| Maximum sea water temperature in April: | 56.1°F |
| Average sea water temperature in April: | 61.0°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| April 6 | 66.4°F | April 1 | 65.1°F |
| April 5 | 65.5°F | March 31 | 66.9°F |
| April 4 | 65.3°F | March 30 | 67.8°F |
| April 3 | 65.5°F | March 29 | 67.8°F |
| April 2 | 65.1°F | March 28 | 68.2°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: 06:29
April 06, monday
0900
66°F
E
7 mph
7 mph
1200
73°F
E
7 mph
7 mph
1500
68°F
E
11 mph
11 mph
1800
63°F
E
9 mph
9 mph
2100
61°F
E
4 mph
4 mph
April 07, tuesday
0000
61°F
NE
4 mph
4 mph
0300
59°F
NE
4 mph
4 mph
0600
59°F
N
3 mph
3 mph
