San Francisco, CA Weather

San Francisco, CA climate is mild during summer when temperatures tend to be in the 60's and cool during winter when temperatures tend to be in the 50's.

The warmest month of the year is September with an average maximum temperature of 71.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 46.40 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 14 degrees Fahrenheit, and fairly limited during winter with an average difference of 12 degrees Fahrenheit.

The annual average precipitation at San Francisco is 22.28 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is January with an average rainfall of 4.72 Inches.

Weather Data

Current Conditions

(Updated: 8:53 AM PDT MON OCT 13 2008)

Fair, 65°F	Humidity: 20%	Dewpoint: 23°F
	Wind Speed: CALM	Heat Index: 65°F
	Barometer: 30.30 in.	Wind Chill: 65°F

Weather Forecast

(Generated: 4:00 AM PDT MON OCT 13 2008)

	Hi: 65°F	Today: Sunny. Highs in the 60s and 70s. North winds 5 to 15 mph... Becoming west late.
	Lo: 46°F
	Hi: 65°F	Tuesday: Sunny. Highs in the 60s and 70s. Northeast winds around 5 mph...Becoming west 5 to 15 mph in the afternoon.
	Lo: 50°F
	Hi: 66°F	Wednesday: Areas of morning low clouds and fog near the ocean. Otherwise sunny. Highs in the 60s to mid 70s. Northwest winds 5 to 15 mph.
	Lo: 50°F
	Hi: 70°F	Thursday: Sunny except areas of morning low clouds and fog. Highs in the upper 50s to mid 70s.
	Lo: 50°F
	Hi: 70°F	Friday: Areas of night and morning low clouds and fog. Otherwise mostly clear. Lows in the upper 40s to mid 50s. Highs in the upper 50s to mid 70s.
	Lo: 50°F
	Hi: 70°F	Saturday: Areas of night and morning low clouds and fog. Otherwise mostly clear. Lows in the upper 40s to mid 50s. Highs in the upper 50s to mid 70s.
	Lo: 50°F
	Hi: 70°F	Saturday: Areas of night and morning low clouds and fog. Otherwise mostly clear. Lows in the upper 40s to mid 50s. Highs in the upper 50s to mid 70s.
	Lo: 50°F

Moon, Sunrise and Sunset

	Moon Phase: Full Moon	Civil Twilight: 6:49 AM PDT	Sunrise: 7:15 AM PDT
		Sunset: 6:35 PM PDT	Civil Twilight: 7:01 PM PDT

Normal Climate

Normal Temperatures

(SAN FRANCISCO DOWNTOWN Weather station, 0.72 miles from San Francisco)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	58.1	61.4	62.5	64.5	65.4	67.7	68.2	69.2	71.3	70.4	64.1	58.6	65.1
Mean °F	52.3	55.0	55.9	57.3	58.4	60.5	61.3	62.4	63.7	62.5	57.5	52.7	58.3
Min °F	46.4	48.5	49.2	50.1	51.4	53.2	54.4	55.6	56.1	54.6	50.8	46.7	51.4

Normal Precipitation