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

The warmest month in San Francisco is august. The average daily temp is 66.0°F. The average nightly temp is 57.8°F.

Sea water temperature, °F

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

Precipitation total, in.

September is the month with least precipitations during the year. The average precipitation totals for this month is 0.1 in. The month with most precipitation total is January.

Number of rainy days

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
Sunny, partly cloudy and cloudy days
Average sunny hours

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 54.3 °F
January 54.7 °F
February 55.6 °F
Rainiest months:
February 4 days
March 4 days
December 4 days
Windiest months:
May 10.0 mph
June 9.6 mph
April 9.5 mph

San Francisco on a weather map

San Francisco
+55°F
N 25 mph
Feels like: +52°F
Precip.: 0%
Places in USA:
Name
°F
+46°F
+43°F
+73°F
+73°F
+43°F
+57°F
+73°F
+64°F
+50°F
+52°F
+55°F
+68°F
+64°F
+52°F
+32°F
24 Hours Forecast
San Francisco
Local time: 03:46
November 21, thursday
0600
55°F
N
25 mph
0900
55°F
N
23 mph
1200
57°F
N
21 mph
1500
55°F
N
21 mph
1800
57°F
N
19 mph
2100
57°F
N
17 mph
November 22, friday
0000
57°F
N
17 mph
0300
57°F
N
23 mph
Units of measurement: °C / °F