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San Francisco, California Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:
- San Francisco, California, Usa latitude & longitude; 37°37'N 122°23'W.
- Altitude; 2 m (7 ft).
- The average temperature in San Francisco, California, Usa is 13.7 °C (57 °F).
- The range of average monthly temperatures is 8.5 °C.
- The warmest average max/ high temperature is 23 °C (73 °F) in September.
- The coolest average min/ low temperature is 5 °C (41 °F) in January.
- San Francisco, California receives on average 475.5 mm (18.7 in) of precipitation annually or 40 mm (1.6 in) each month.
- On balance there are 62 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 5.2 days on an average month.
- The month with the driest weather is July when on balance 0.5 mm (0.0 in) of rain, sleet, hail or snow falls across <1 days.
- The month with the wettest weather is December when on balance 104 mm (4.1 in) of rain, sleet, hail or snow falls across 10 days.
- Mean relative humidity for an average year is recorded as 68.3% and on a monthly basis it ranges from 65% in June, October to 75% in January.
- There is an average range of hours of sunshine in San Francisco, California of between 5.0 hours per day in January and 11.4 hours per day in June.
- On balance there are 3037 sunshine hours annually and approximately 8.3 sunlight hours for each day.
- On balance there are 3 days annually registering frost in San Francisco, California and in January there are on average 2 days with frost.
San Francisco, California Climate Graph (Metric | Imperial units)
Add the San Francisco, California Climate Graph (metric) to your web page!
Use our metric climate graph for San Francisco, California on your travel or accommodation website to help people thinking of booking a flight or hotel, renting a villa or purchasing property etc. (a back link is required):
San Francisco, California Weather Averages
| |
Average Minimum Temperatures in San Francisco, California, Usa (°C) |
Average Maximum Temperature in San Francisco, California, Usa (°C) |
San Francisco, California Average Temperature (°C) |
Average Sea Temp (°C) |
Average Precipitation/ Rainfall (mm) |
Wet Days (>0.1 mm) |
Average Sunlight Hours/ Day |
Relative Humidity (%) |
Average Wind Speed in San Francisco, California (Beaufort) |
Average Number of Days with Frost |
|
| Weather in San Francisco, California in January |
5 |
13 |
9 |
10 |
102 |
11 |
5.0 |
75 |
2 |
2 |
Average Temperature in San Francisco, California in January |
| Weather in San Francisco, California in February |
6 |
15 |
10.5 |
11 |
88 |
10 |
6.8 |
71 |
3 |
0 |
Average Temperature in San Francisco, California in February |
| Weather in San Francisco, California in March |
7 |
16 |
12 |
12 |
68 |
9 |
8.5 |
66.0 |
3 |
0 |
Average Temperature in San Francisco, California in March |
| Weather in San Francisco, California in April |
8 |
18 |
13 |
12 |
33 |
6 |
9.9 |
66 |
3 |
0 |
Average Temperature in San Francisco, California in April |
| Weather in San Francisco, California in May |
10 |
19 |
15 |
13 |
12 |
3 |
10.6 |
66 |
4 |
0 |
Average Temperature in San Francisco, California in May |
| Weather in San Francisco, California in June |
11 |
21 |
16 |
14 |
3 |
1 |
11.4 |
65 |
4 |
0 |
Average Temperature in San Francisco, California in June |
| Weather in San Francisco, California in July |
12 |
22 |
17 |
15 |
0.5 |
<1 |
9.5 |
69 |
4 |
0 |
Average Temperature in San Francisco, California in July |
| Weather in San Francisco, California in August |
12 |
22 |
17 |
15 |
1 |
<1 |
8.9 |
69 |
4 |
0 |
Average Temperature in San Francisco, California in August |
| Weather in San Francisco, California in September |
12 |
23 |
18 |
16 |
5 |
1 |
9.2 |
66 |
3 |
0 |
Average Temperature in San Francisco, California in September |
| Weather in San Francisco, California in October |
10 |
21 |
16 |
15 |
19 |
4 |
7.8 |
65 |
3 |
0 |
Average Temperature in San Francisco, California in October |
| Weather in San Francisco, California in November |
8 |
18 |
13 |
13 |
40 |
7 |
6.6 |
68 |
2 |
0 |
Average Temperature in San Francisco, California in November |
| Weather in San Francisco, California in December |
6 |
14 |
10 |
11 |
104 |
10 |
5.8 |
74 |
2 |
1 |
Average Temperature in San Francisco, California in December |
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Add the San Francisco, California Climograph/ Climate Chart (imperial) to your web page!
Use our imperial climate chart for San Francisco, California on your travel or accommodation website to help people thinking of booking a flight or hotel, renting a villa or purchasing property etc. (a back link is required):
San Francisco, California Temperatures in Farenheit
| |
Average Minimum Temperatures in San Francisco, California, Usa (°F) |
Average Maximum Temperature in San Francisco, California, Usa (°F) |
Average Temperature (°F) |
Average Sea Temp (°F) |
Average Precipitation/ Rainfall (in) |
Wet Days (>0.004 in) |
Average Sunlight Hours/ Day |
Relative Humidity (%) |
Average Wind Speed (Beaufort) |
Average Number of Days with Frost |
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| Temperatures in San Francisco, California in January |
41 |
55 |
48 |
50 |
4.0 |
11 |
5.0 |
75 |
2 |
2 |
Climate in San Francisco, California in January |
| Temperatures in San Francisco, California in February |
43 |
59 |
51 |
52 |
3.5 |
10 |
6.8 |
71 |
3 |
0 |
Climate in San Francisco, California in February |
| Temperatures in San Francisco, California in March |
45 |
61 |
53 |
54 |
2.7 |
9 |
8.5 |
66 |
3 |
0 |
Climate in San Francisco, California in March |
| Temperatures in San Francisco, California in April |
46 |
64 |
55 |
54 |
1.3 |
6 |
9.9 |
66 |
3 |
0 |
Climate in San Francisco, California in April |
| Temperatures in San Francisco, California in May |
50 |
66 |
58 |
55 |
0.5 |
3 |
10.6 |
66 |
4 |
0 |
Climate in San Francisco, California in May |
| Temperatures in San Francisco, California in June |
52 |
70 |
61 |
57 |
0.1 |
1 |
11.4 |
65 |
4 |
0 |
Climate in San Francisco, California in June |
| Temperatures in San Francisco, California in July |
54 |
72 |
63 |
59 |
0.0 |
<1 |
9.5 |
69 |
4 |
0 |
Climate in San Francisco, California in July |
| Temperatures in San Francisco, California in August |
54 |
72 |
63 |
59 |
0.0 |
<1 |
8.9 |
69 |
4 |
0 |
Climate in San Francisco, California in August |
| Temperatures in San Francisco, California in September |
54 |
73 |
64 |
61 |
0.2 |
1 |
9.2 |
66 |
3 |
0 |
Climate in San Francisco, California in September |
| Temperatures in San Francisco, California in October |
50 |
70 |
60 |
59 |
0.7 |
4 |
7.8 |
65 |
3 |
0 |
Climate in San Francisco, California in October |
| Temperatures in San Francisco, California in November |
46 |
64 |
55 |
55 |
1.6 |
7 |
6.6 |
68 |
2 |
0 |
Climate in San Francisco, California in November |
| Temperatures in San Francisco, California in December |
43 |
57 |
50 |
52 |
4.1 |
10 |
5.8 |
74 |
2 |
1 |
Climate in San Francisco, California in December |
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