Seattle, WA Weather

Seattle, WA climate is mild during summer when temperatures tend to be in the 60's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 74.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 36.00 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 18 degrees Fahrenheit, and fairly limited during winter with an average difference of 12 degrees Fahrenheit.

The annual average precipitation at Seattle is 38.25 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is December with an average rainfall of 6.06 Inches.

Weather Data

Current Conditions

(Updated: 4:53 PM PST FRI NOV 20 2009)

Overcast, 47°F	Humidity: 71%	Dewpoint: 38°F
	Wind Speed: S 13.8 MPH G 24.2 (12 MPH G 21 KT)	Heat Index: 47°F
	Barometer: 29.60 in.	Wind Chill: 41°F

Weather Forecast

(Generated: 4:45 PM PST FRI NOV 20 2009)

		Tonight: Showers likely. Chance of a thunderstorm this evening. Breezy. Lows in the mid 30s to lower 40s. Southwest wind 15 to 25 mph with local gusts to 35 mph this evening. Wind diminishing overnight.
	Lo: 36°F
	Hi: 45°F	Saturday: Rain and breezy by afternoon. Highs in the 40s. South wind 10 to 15 mph increasing to 15 to 25 mph in the afternoon.
	Lo: 40°F
	Hi: 46°F	Sunday: Cloudy with a chance of showers. Highs in the 40s to lower 50s. Southwest wind 10 to 20 mph.
	Lo: 40°F
	Hi: 49°F	Monday: Rain likely. Highs in the upper 40s.
	Lo: 41°F
	Hi: 50°F	Tuesday: Mostly cloudy with a chance of rain. Lows in the lower 40s. Highs near 50.
	Lo: 41°F
	Hi: 50°F	Wednesday: Mostly cloudy with a chance of rain. Lows in the lower 40s. Highs near 50.
	Lo: 41°F
	Hi: 50°F	Wednesday: Mostly cloudy with a chance of rain. Lows in the lower 40s. Highs near 50.
	Lo: 41°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Crescent Moon	Civil Twilight: 6:46 AM PST	Sunrise: 7:21 AM PST
		Sunset: 4:27 PM PST	Civil Twilight: 5:02 PM PST

Normal Climate

Normal Temperatures

(SEATTLE URBAN SITE Weather station, 3.34 miles from Seattle)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	46.9	50.5	54.5	59.3	64.9	69.5	74.5	74.9	69.9	60.3	51.5	46.5	60.3
Mean °F	41.5	43.8	46.9	50.9	56.6	61.1	65.5	66.0	61.3	53.4	46.0	41.3	52.9
Min °F	36.0	37.1	39.2	42.5	48.2	52.7	56.4	57.1	52.6	46.4	40.4	36.1	45.4

Normal Precipitation