World Resorts USA San Francisco

San Francisco Monthly Weather Averages

Please click on any column to get detailed information about San Francisco weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
88
53.4
57.9
62.3
63.4
65.6
63.1
61.9
59.1
57.9
55.5
54.8
53.5
50.2
53.6
56.8
57.5
57.5
55.3
54.7
52.3
51.1
50.1
49.6
49.7
Day temperature   
Night temperature

The warmest month in San Francisco is august. The average daily temp is 65.6°F. The average nightly temp is 57.5°F.

Sea water temperature, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
54
57.4
60.4
61.8
61.5
60.1
58.6
56.4
55.9
54.5
53.4
52.4

The warmest sea temperature usually observed in September. Average daily sea water temperature during this month is 61.8°F.

Precipitation total, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.5
1.0
1.5
1.9
2.4
2.9
3.4
3.9
1.6
1.1
0.4
0.1
0.2
0.1
0
0.6
1.1
2.1
2.3
2.8

June is the month with least precipitations during the year. The average precipitation totals for this month is 0.0 in. The month with most precipitation total is January.

Number of rainy days

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
7
3
2
1
0
0
0
0
1
2
5
3
5

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
7.7
6.9
7
7.6
8.2
8.9
9.6
9.5
9.2
8.9
8.5
7.8
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
11
8
8
8
6
7
3
5
6
13
9
13
8
6
5
6
9
7
8
8
7
7
6
8
12
16
17
16
16
17
19
18
16
11
13
11
Cloudy days   
Partly cloudy days   
Sunny days
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
12
13
4.3
6.7
6.2
7
9.4
8.7
10.8
11.1
10
7.4
6.5
5.9

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in San Francisco

Sunniest months:
June 19 days
September 18 days
October 18 days
Warmest months:
August 65.9 °F
September 65.0 °F
October 63.9 °F
Warmest sea temp:
September 61.8 °F
August 61.6 °F
October 60.4 °F
Coldest months:
December 54.2 °F
January 54.6 °F
February 55.4 °F
Rainiest months:
March 4 days
December 4 days
January 4 days
Windiest months:
May 10.0 mph
June 9.6 mph
April 9.5 mph

San Francisco on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+48°F
+59°F
+79°F
+79°F
+70°F
+81°F
+75°F
+55°F
+77°F
+86°F
+63°F
+70°F
+73°F
+66°F
+45°F
24 Hours Forecast
San Francisco
Local time: 13:49
February 27, thursday
1500
63°F
SW
11 mph
1800
66°F
SW
7 mph
2100
57°F
E
5 mph
February 28, friday
0000
54°F
S
4 mph
0300
52°F
SW
3 mph
0600
50°F
SW
5 mph
0900
50°F
W
2 mph
1200
50°F
N
1 mph
Units of measurement: °C / °F