12.17
wed
wed
DAY
60°F
NE 4 mph
precip
0%
0%
NIGHT
50°F
E 5 mph
precip
0%
0%
12.18
thu
thu
DAY
50°F
E 2 mph
precip
0%
0%
NIGHT
54°F
E 3 mph
precip
0%
0%
12.19
fri
fri
DAY
56°F
N 4 mph
precip
0%
0%
NIGHT
56°F
NE 3 mph
precip
0%
0%
12.20
sat
sat
DAY
60°F
NW 4 mph
precip
0%
0%
NIGHT
60°F
NE 19 mph
precip
100%
100%
12.21
sun
sun
DAY
60°F
NE 5 mph
precip
100%
100%
NIGHT
58°F
N 8 mph
precip
43%
43%
12.22
mon
mon
DAY
60°F
N 13 mph
precip
56%
56%
NIGHT
56°F
N 3 mph
precip
0%
0%
12.23
tue
tue
DAY
58°F
N 16 mph
precip
100%
100%
NIGHT
52°F
E 7 mph
precip
0%
0%
12.24
wed
wed
DAY
52°F
SW 1 mph
precip
0%
0%
NIGHT
50°F
SW 12 mph
precip
0%
0%
12.25
thu
thu
DAY
46°F
SW 12 mph
precip
100%
100%
NIGHT
48°F
SW 9 mph
precip
29%
29%
12.26
fri
fri
DAY
52°F
NE 7 mph
precip
100%
100%
NIGHT
52°F
N 11 mph
precip
0%
0%
12.27
sat
sat
DAY
54°F
N 6 mph
precip
74%
74%
NIGHT
52°F
SE 8 mph
precip
0%
0%
12.28
sun
sun
DAY
54°F
SE 5 mph
precip
0%
0%
NIGHT
50°F
NE 2 mph
precip
0%
0%
12.29
mon
mon
DAY
52°F
N 11 mph
precip
0%
0%
NIGHT
52°F
N 18 mph
precip
100%
100%
12.30
tue
tue
DAY
54°F
N 22 mph
precip
100%
100%
NIGHT
56°F
N 27 mph
precip
100%
100%
Sea water
temperature
temperature
| San Francisco |
Weather in
December
December
| San Francisco |
7 day weather
forecast
forecast
| San Francisco |
10 day weather
forecast
forecast
| San Francisco |
14 day weather
forecast
forecast
| San Francisco |
Monthly weather
averages
averages
| San Francisco |
Current Weather
Conditions
Conditions
| San Francisco |
When is the Best
Time to Visit?
Time to Visit?
| San Francisco |
San Francisco Sea Water Temperature in December, °F
The average sea surface temperature in December 2025 for San Francisco was 55.6°F. The maximum and minimum values were 53.6°F and 57.8°F respectively.
San Francisco on the Weather Map
USA Resorts:
NAME
F°
| Chicago |  |
+36 |
| Hawaii |  |
+80 |
| Honolulu | |
+80 |
| Houston | |
+72 |
| Las Vegas |  |
+74 |
| Los Angeles | |
+74 |
| Maui |  |
+76 |
| Miami | |
+78 |
| Miami Beach | |
+80 |
| New York |  |
+44 |
| San Diego | |
+68 |
| San Francisco | |
+58 |
| Sarasota | |
+78 |
| Tampa | |
+78 |
| Washington | |
+52 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Francisco
Local time: 13:54
17 dec, wednesday
| 1500 | |
58°F | E 7 mph |
| 1800 | |
54°F | E 8 mph |
| 2100 | |
52°F | E 5 mph |
18 dec, thursday
| 0000 | |
50°F | E 5 mph |
| 0300 | |
48°F | E 6 mph |
| 0600 | |
48°F | E 3 mph |
| 0900 | |
50°F | NE 2 mph |
| 1200 | |
50°F | E 2 mph |