Current sea water temperature:
+63.9°F
| Minimum sea water temperature in March: | 65.5°F |
| Maximum sea water temperature in March: | 55.9°F |
| Average sea water temperature in March: | 59.9°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| March 16 | 63.9°F | March 11 | 62.1°F |
| March 15 | 63.1°F | March 10 | 61.7°F |
| March 14 | 63.1°F | March 9 | 61.0°F |
| March 13 | 62.6°F | March 8 | 61.5°F |
| March 12 | 62.2°F | March 7 | 62.4°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
March
March
| 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: 20:58
March 16, monday
2100
66°F
SE
6 mph
6 mph
March 17, tuesday
0000
61°F
S
5 mph
5 mph
0300
57°F
S
5 mph
5 mph
0600
57°F
S
3 mph
3 mph
0900
68°F
S
4 mph
4 mph
1200
86°F
E
6 mph
6 mph
1500
82°F
SE
8 mph
8 mph
1800
73°F
E
6 mph
6 mph
