Current sea water temperature:
+81.0°F
| Minimum sea water temperature in December: | 84.0°F |
| Maximum sea water temperature in December: | 79.7°F |
| Average sea water temperature in December: | 81.5°F |
| more information | |
14 days
forecast
forecast
| San Diego |
monthly
weather
weather
| San Diego |
Sea water temperature for the last 10 days:
| December 4 | 81.0°F | November 29 | 80.6°F |
| December 3 | 81.3°F | November 28 | 80.6°F |
| December 2 | 80.8°F | November 27 | 81.0°F |
| December 1 | 80.8°F | November 26 | 81.0°F |
| November 30 | 80.4°F | November 25 | 81.1°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 September, October and August.
Monthly Sea Temperatures in San Diego, °F
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.0°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 84.4°F. The highest and lowest sea temperatures during the month were 85.3°F and 83.8°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 83.5°F.
current
weather
weather
| San Diego |
weather in
December
December
| San Diego |
Best time for vacation in San Diego
San Diego on a weather map
Places in Nicaragua:
Name
°F
24 Hours Forecast
San Diego
Local time: 21:58
December 05, friday
0000
77°F
W
11 mph
11 mph
0300
77°F
W
12 mph
12 mph
0600
75°F
W
9 mph
9 mph
0900
82°F
W
11 mph
11 mph
1200
88°F
W
9 mph
9 mph
1500
88°F
W
9 mph
9 mph
1800
81°F
W
8 mph
8 mph
2100
79°F
W
11 mph
11 mph
