27.12
sat
sat
Day
52°F
S 4 mph
Precip.
0%
0%
Night
46°F
SW 4 mph
Precip.
0%
0%
28.12
sun
sun
Day
45°F
SW 5 mph
Precip.
0%
0%
Night
45°F
SW 7 mph
Precip.
0%
0%
29.12
mon
mon
Day
50°F
SW 9 mph
Precip.
0%
0%
Night
50°F
SW 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
46°F
SW 7 mph
Precip.
0%
0%
Night
54°F
SW 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
55°F
SW 7 mph
Precip.
0%
0%
Night
54°F
SW 7 mph
Precip.
0%
0%
01.01
thu
thu
Day
55°F
SW 3 mph
Precip.
0%
0%
Night
54°F
SW 7 mph
Precip.
82%
82%
02.01
fri
fri
Day
55°F
N 12 mph
Precip.
100%
100%
Night
54°F
SW 5 mph
Precip.
100%
100%
03.01
sat
sat
Day
55°F
SW 6 mph
Precip.
0%
0%
Night
55°F
SW 6 mph
Precip.
100%
100%
04.01
sun
sun
Day
57°F
SW 6 mph
Precip.
100%
100%
Night
57°F
NW 7 mph
Precip.
100%
100%
05.01
mon
mon
Day
59°F
N 14 mph
Precip.
100%
100%
Night
55°F
E 6 mph
Precip.
54%
54%
06.01
tue
tue
Day
55°F
E 15 mph
Precip.
0%
0%
Night
52°F
E 6 mph
Precip.
0%
0%
07.01
wed
wed
Day
52°F
SE 7 mph
Precip.
0%
0%
Night
52°F
SE 6 mph
Precip.
0%
0%
08.01
thu
thu
Day
54°F
S 3 mph
Precip.
0%
0%
Night
55°F
SW 4 mph
Precip.
0%
0%
09.01
fri
fri
Day
55°F
SW 7 mph
Precip.
0%
0%
Night
55°F
S 5 mph
Precip.
0%
0%
sea water
temperature
temperature
| San Francisco |
monthly
weather
weather
| San Francisco |
current
weather
weather
| San Francisco |
7 days
forecast
forecast
| San Francisco |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 54.8°F. The highest and lowest sea temperatures during the month were 57.0°F and 53.2°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 52.7°F. The highest and lowest sea temperatures during the month were 53.4°F and 51.8°F.
Air temperature in San Francisco, °F
Precipitation total in San Francisco, in.
* Charts above show average data for the last 3 years.
Best time for vacation in San Francisco
San Francisco on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Francisco
Local time: 17:36
December 27, saturday
1800
52°F
S
6 mph
6 mph
2100
48°F
SW
5 mph
5 mph
December 28, sunday
0000
46°F
SW
4 mph
4 mph
0300
45°F
SW
4 mph
4 mph
0600
43°F
SW
4 mph
4 mph
0900
43°F
SW
3 mph
3 mph
1200
45°F
SW
5 mph
5 mph
1500
46°F
SW
9 mph
9 mph
