25.12
thu
thu
Day
55°F
N 18 mph
Precip.
0%
0%
Night
55°F
NE 25 mph
Precip.
100%
100%
26.12
fri
fri
Day
55°F
NW 16 mph
Precip.
0%
0%
Night
54°F
W 4 mph
Precip.
0%
0%
27.12
sat
sat
Day
52°F
SW 11 mph
Precip.
0%
0%
Night
52°F
W 5 mph
Precip.
0%
0%
28.12
sun
sun
Day
52°F
SW 4 mph
Precip.
0%
0%
Night
50°F
SW 9 mph
Precip.
0%
0%
29.12
mon
mon
Day
52°F
SW 9 mph
Precip.
0%
0%
Night
52°F
SW 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
54°F
SW 9 mph
Precip.
0%
0%
Night
52°F
SW 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
52°F
SW 7 mph
Precip.
0%
0%
Night
54°F
SW 6 mph
Precip.
24%
24%
01.01
thu
thu
Day
55°F
NW 9 mph
Precip.
100%
100%
Night
54°F
E 7 mph
Precip.
47%
47%
02.01
fri
fri
Day
54°F
SE 9 mph
Precip.
0%
0%
Night
50°F
SE 9 mph
Precip.
0%
0%
03.01
sat
sat
Day
48°F
S 4 mph
Precip.
0%
0%
Night
48°F
SE 6 mph
Precip.
0%
0%
04.01
sun
sun
Day
50°F
NW 2 mph
Precip.
0%
0%
Night
50°F
E 3 mph
Precip.
0%
0%
05.01
mon
mon
Day
54°F
N 7 mph
Precip.
70%
70%
Night
50°F
NE 7 mph
Precip.
0%
0%
06.01
tue
tue
Day
50°F
SW 7 mph
Precip.
0%
0%
Night
52°F
SW 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 54.7°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: 00:47
December 25, thursday
0300
52°F
N
38 mph
38 mph
0600
54°F
NE
25 mph
25 mph
0900
55°F
NE
21 mph
21 mph
1200
55°F
N
18 mph
18 mph
1500
55°F
N
20 mph
20 mph
1800
55°F
N
24 mph
24 mph
2100
55°F
NE
20 mph
20 mph
December 26, friday
0000
55°F
NE
25 mph
25 mph
