20.12
sat
sat
Day

59°F
N 2 mph
Precip.
100%
100%
Night

57°F
N 12 mph
Precip.
0%
0%
21.12
sun
sun
Day

57°F
N 22 mph
Precip.
0%
0%
Night

55°F
E 8 mph
Precip.
100%
100%
22.12
mon
mon
Day

54°F
SE 2 mph
Precip.
0%
0%
Night

52°F
SE 1 mph
Precip.
100%
100%
23.12
tue
tue
Day

54°F
NW 6 mph
Precip.
0%
0%
Night

52°F
E 8 mph
Precip.
100%
100%
24.12
wed
wed
Day

55°F
N 12 mph
Precip.
100%
100%
Night

57°F
NW 29 mph
Precip.
100%
100%
25.12
thu
thu
Day

54°F
N 19 mph
Precip.
100%
100%
Night

54°F
N 20 mph
Precip.
100%
100%
26.12
fri
fri
Day

57°F
N 21 mph
Precip.
100%
100%
Night

54°F
N 14 mph
Precip.
100%
100%
27.12
sat
sat
Day

55°F
NW 6 mph
Precip.
84%
84%
Night

52°F
SW 9 mph
Precip.
29%
29%
28.12
sun
sun
Day

54°F
SE 4 mph
Precip.
0%
0%
Night

52°F
E 4 mph
Precip.
0%
0%
29.12
mon
mon
Day

52°F
W 2 mph
Precip.
0%
0%
Night

52°F
SW 5 mph
Precip.
0%
0%
30.12
tue
tue
Day

52°F
SW 6 mph
Precip.
0%
0%
Night

54°F
SW 4 mph
Precip.
0%
0%
31.12
wed
wed
Day

55°F
SW 3 mph
Precip.
0%
0%
Night

55°F
N 6 mph
Precip.
0%
0%
01.01
thu
thu
Day

54°F
NW 12 mph
Precip.
100%
100%
Night

54°F
N 6 mph
Precip.
100%
100%
02.01
fri
fri
Day

52°F
E 7 mph
Precip.
84%
84%
Night

52°F
NE 17 mph
Precip.
100%
100%
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 54.9°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: 20:14
December 20, saturday
2100

59°F
N
6 mph
6 mph
December 21, sunday
0000

57°F
N
12 mph
12 mph
0300

57°F
N
15 mph
15 mph
0600

57°F
N
17 mph
17 mph
0900

55°F
N
18 mph
18 mph
1200

57°F
N
22 mph
22 mph
1500

57°F
N
23 mph
23 mph
1800

55°F
N
24 mph
24 mph



























