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 65.1°F. The average nightly temp is 57.4°F.

Sea water temperature, °F

The warmest sea temperature usually observed in September. Average daily sea water temperature during this month is 62.0°F.

Precipitation total, in.

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

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:
October 18 days
June 18 days
May 17 days
Warmest months:
August 65.5 °F
September 65.0 °F
October 64.2 °F
Warmest sea temp:
September 62.0 °F
August 61.7 °F
October 60.7 °F
Coldest months:
December 54.2 °F
January 54.6 °F
February 55.5 °F
Rainiest months:
March 4 days
December 4 days
January 4 days
Windiest months:
May 9.9 mph
June 9.7 mph
April 9.4 mph

San Francisco on a weather map

San Francisco
+55°F
S 6 mph
Feels like: +54°F
Precip.: 0%
Places in USA:
Name
°F
+34°F
+77°F
+77°F
+57°F
+66°F
+72°F
+79°F
+70°F
+28°F
+66°F
+55°F
+66°F
+68°F
+46°F
+9°F
24 Hours Forecast
San Francisco
Local time: 19:30
December 04, thursday
2100
48°F
S
4 mph
December 05, friday
0000
46°F
S
2 mph
0300
46°F
SW
3 mph
0600
48°F
SW
4 mph
0900
48°F
SW
5 mph
1200
48°F
SW
3 mph
1500
50°F
SE
2 mph
1800
50°F
E
4 mph
Units of measurement: °C / °F