17.12
wed
wed
Day
66°F
SE 3 mph
Precip.
0%
0%
Night
57°F
S 2 mph
Precip.
0%
0%
18.12
thu
thu
Day
70°F
E 2 mph
Precip.
0%
0%
Night
57°F
SE 2 mph
Precip.
0%
0%
19.12
fri
fri
Day
66°F
E 3 mph
Precip.
0%
0%
Night
63°F
NE 2 mph
Precip.
0%
0%
20.12
sat
sat
Day
66°F
NE 6 mph
Precip.
0%
0%
Night
61°F
N 2 mph
Precip.
0%
0%
21.12
sun
sun
Day
68°F
NE 3 mph
Precip.
0%
0%
Night
64°F
SE 3 mph
Precip.
0%
0%
22.12
mon
mon
Day
70°F
E 4 mph
Precip.
0%
0%
Night
64°F
NE 2 mph
Precip.
0%
0%
23.12
tue
tue
Day
66°F
N 9 mph
Precip.
0%
0%
Night
63°F
NW 8 mph
Precip.
75%
75%
sea water
temperature
temperature
| San Diego |
monthly
weather
weather
| San Diego |
current
weather
weather
| San Diego |
14 days
forecast
forecast
| San Diego |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 62.7°F. The highest and lowest sea temperatures during the month were 63.9°F and 62.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 57.0°F and 55.6°F.
Air temperature in San Diego, °F
Precipitation total in San Diego, in.
* Charts above show average data for the last 3 years.
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: 17:45
December 17, wednesday
1800
61°F
SE
5 mph
5 mph
2100
57°F
SE
3 mph
3 mph
December 18, thursday
0000
57°F
S
2 mph
2 mph
0300
55°F
S
2 mph
2 mph
0600
54°F
S
2 mph
2 mph
0900
61°F
S
1 mph
1 mph
1200
70°F
E
2 mph
2 mph
1500
72°F
E
6 mph
6 mph
