21.12
sun
sun
Day
64°F
SE 5 mph
Precip.
0%
0%
Night
57°F
SE 7 mph
Precip.
0%
0%
22.12
mon
mon
Day
63°F
SE 5 mph
Precip.
0%
0%
Night
57°F
SE 4 mph
Precip.
0%
0%
23.12
tue
tue
Day
63°F
N 6 mph
Precip.
0%
0%
Night
63°F
NW 6 mph
Precip.
0%
0%
24.12
wed
wed
Day
64°F
N 24 mph
Precip.
100%
100%
Night
63°F
N 15 mph
Precip.
100%
100%
25.12
thu
thu
Day
64°F
N 8 mph
Precip.
100%
100%
Night
61°F
N 6 mph
Precip.
100%
100%
26.12
fri
fri
Day
64°F
N 8 mph
Precip.
100%
100%
Night
61°F
NW 4 mph
Precip.
0%
0%
27.12
sat
sat
Day
63°F
N 12 mph
Precip.
86%
86%
Night
61°F
N 6 mph
Precip.
100%
100%
28.12
sun
sun
Day
63°F
SE 7 mph
Precip.
0%
0%
Night
57°F
SE 6 mph
Precip.
67%
67%
29.12
mon
mon
Day
59°F
S 5 mph
Precip.
0%
0%
Night
57°F
S 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
64°F
SE 6 mph
Precip.
0%
0%
Night
59°F
SE 4 mph
Precip.
0%
0%
31.12
wed
wed
Day
61°F
NE 4 mph
Precip.
0%
0%
Night
57°F
N 5 mph
Precip.
0%
0%
01.01
thu
thu
Day
59°F
N 7 mph
Precip.
47%
47%
Night
57°F
NW 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
59°F
SE 3 mph
Precip.
0%
0%
Night
57°F
NE 6 mph
Precip.
0%
0%
03.01
sat
sat
Day
63°F
W 2 mph
Precip.
0%
0%
Night
61°F
SE 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Diego |
monthly
weather
weather
| San Diego |
current
weather
weather
| San Diego |
7 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 62.1°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: 10:02
December 21, sunday
1200
64°F
SE
5 mph
5 mph
1500
66°F
SE
7 mph
7 mph
1800
61°F
SE
8 mph
8 mph
2100
59°F
SE
7 mph
7 mph
December 22, monday
0000
57°F
SE
7 mph
7 mph
0300
57°F
S
6 mph
6 mph
0600
55°F
S
6 mph
6 mph
0900
59°F
SE
6 mph
6 mph
