Current sea water temperature:
+66.6°F
| Minimum sea water temperature in June: | 71.6°F |
| Maximum sea water temperature in June: | 60.6°F |
| Average sea water temperature in June: | 66.1°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| June 25 | 66.6°F | June 20 | 70.5°F |
| June 24 | 68.4°F | June 19 | 71.1°F |
| June 23 | 70.0°F | June 18 | 70.9°F |
| June 22 | 70.3°F | June 17 | 70.3°F |
| June 21 | 70.5°F | June 16 | 70.2°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
June
June
| 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: 00:10
June 26, friday
0300

63°F
E
4 mph
4 mph
0600

63°F
SE
5 mph
5 mph
0900

66°F
SE
6 mph
6 mph
1200

70°F
E
9 mph
9 mph
1500

70°F
E
12 mph
12 mph
1800

70°F
NE
6 mph
6 mph
2100

66°F
E
6 mph
6 mph
June 27, saturday
0000

64°F
E
6 mph
6 mph



























