31.12
wed
wed
Day
54°F
SW 5 mph
Precip.
100%
100%
Night
50°F
SW 7 mph
Precip.
100%
100%
01.01
thu
thu
Day
52°F
SW 7 mph
Precip.
0%
0%
Night
55°F
NW 7 mph
Precip.
0%
0%
02.01
fri
fri
Day
55°F
N 24 mph
Precip.
0%
0%
Night
54°F
NE 19 mph
Precip.
100%
100%
03.01
sat
sat
Day
55°F
N 11 mph
Precip.
100%
100%
Night
54°F
N 6 mph
Precip.
100%
100%
04.01
sun
sun
Day
52°F
NW 6 mph
Precip.
100%
100%
Night
50°F
W 7 mph
Precip.
100%
100%
05.01
mon
mon
Day
50°F
SW 7 mph
Precip.
100%
100%
Night
50°F
SW 4 mph
Precip.
55%
55%
06.01
tue
tue
Day
52°F
NE 13 mph
Precip.
100%
100%
Night
48°F
W 3 mph
Precip.
0%
0%
07.01
wed
wed
Day
50°F
N 3 mph
Precip.
0%
0%
Night
48°F
SE 4 mph
Precip.
0%
0%
08.01
thu
thu
Day
52°F
NE 7 mph
Precip.
45%
45%
Night
48°F
S 5 mph
Precip.
0%
0%
09.01
fri
fri
Day
48°F
SE 2 mph
Precip.
0%
0%
Night
50°F
E 8 mph
Precip.
77%
77%
10.01
sat
sat
Day
52°F
S 10 mph
Precip.
0%
0%
Night
48°F
SW 4 mph
Precip.
0%
0%
11.01
sun
sun
Day
50°F
SW 5 mph
Precip.
0%
0%
Night
48°F
SW 4 mph
Precip.
0%
0%
12.01
mon
mon
Day
50°F
SW 5 mph
Precip.
0%
0%
Night
52°F
SW 6 mph
Precip.
0%
0%
13.01
tue
tue
Day
54°F
SW 6 mph
Precip.
0%
0%
Night
55°F
SW 7 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: 07:09
December 31, wednesday
0900
48°F
W
5 mph
5 mph
1200
54°F
SW
5 mph
5 mph
1500
52°F
W
4 mph
4 mph
1800
50°F
SW
6 mph
6 mph
2100
50°F
SW
8 mph
8 mph
January 01, thursday
0000
50°F
SW
7 mph
7 mph
0300
52°F
SW
7 mph
7 mph
0600
52°F
SW
9 mph
9 mph
