Weather for Seattle

Best time to visit:

A good time to visit is springtime (April and May), when everything is green and in bloom and the big crowds have yet to arrive. Summer (June to August) is high season, with warmer weather but higher accommodation prices and more tourists. Early autumn (September and October) is also a good time to visit, particularly during the Bumbershoot and Oktoberfest. This is also when major theatre and dance companies kick off their annual season. Winter (December to March) is generally a dreary and rainy time to visit Seattle, aside from the lively Seattle Winterfest (November and December).

Day

	Weather (day)		Temp (max day)	Rain (mm)	Wind (mph)	Humidity Pressure Visibility
Fri	Mod Rain	Light rain	1 2 °C	0mm	7 ese	70% 1,016mb Moderate
Sat	Overcast	Overcast skies	9 °C	0mm	8 sw	78% 1,020mb Good
Sun	Overcast	Overcast skies	9 °C	0mm	6 ssw	75% 1,015mb Good
Mon	Iso Rain Swrs Day	Patchy light drizzle	1 0 °C	0.8mm	3 wnw	70% 1,011mb Moderate
Tue	Occ Light Rain	Light drizzle	6 °C	0.6mm	7 ssw	86% 1,018mb Poor
Wed	Occ Light Rain	Light drizzle	6 °C	1.1mm	3 sse	91% 1,022mb Poor
Thu	Sunny	Sunny skies	1 1 °C	2.1mm	1 wnw	89% 1,023mb Good
Fri	Heavy Rain	Heavy rain	5 °C	4.8mm	11 ssw	99% 1,011mb Moderate
Sat	Mod Rain	Moderate rain	6 °C	1.7mm	4 wsw	98% 1,024mb Moderate

Night

	Weather (night)		Temp (min night)	Rain (mm)	Wind (mph)	Humidity Pressure Visibility
Thu	Clear	Clear skies	8 °C	0mm	6 ese	77% 1,018mb Good
Fri	Occ Light Rain	Light drizzle	6 °C	0.1mm	5 se	87% 1,016mb Poor
Sat	Occ Light Rain	Light drizzle	3 °C	0.2mm	6 s	88% 1,020mb Poor
Sun	Partly Cloudy Night	Partly cloudy skies	1 °C	0.2mm	2 sse	92% 1,013mb Good
Mon	Fog	Fog	1 °C	0.2mm	4 sse	98% 1,016mb Poor
Tue	Mist	Mist	3 °C	0mm	6 s	96% 1,021mb Poor
Wed	Occ Light Rain	Patchy light rain	0 °C	0mm	4 se	94% 1,022mb Moderate
Thu	Mod Rain	Moderate rain	2 °C	2.6mm	8 sw	99% 1,019mb Moderate
Fri	Occ Light Rain	Patchy light rain	1 °C	2.6mm	10 sse	98% 1,028mb Moderate

Last updated at 04:05, Friday 10 February

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Last updated: We update the weather data for Seattle from our weather partner every four hours. The time the last update was received is detailed here.

Actual Forecast Location: We have 830+ weather locations on the worldtravelguide.net website. Where no exact location is available we have used the nearest appropriate forecast point.

Symbols indicate the predominant weather for the day in question, calculated based on a weighting of different types of weather. So if a day is forecast to be sunny with the possibility of a brief shower, then we will see a sunny or partly cloudy symbol rather than a rain cloud. For the purpose of this forecast, 'day' is the entire 24 our period 00:00 to 23:59

The maximum temperature is the highest temperature forecast between dawn and dusk, and the minimum temperature is the lowest temperature expected from dusk on the day in question to dawn the next day. The temperature is in °C, or Celsius.

Wind speed and direction are the conditions expected at midday. Wind direction is based on a 16 point compass. W, SW, SSW, etc. The wind direction states where the wind originates. Wind speed is listed in MPH or miles per hour.

Humidity levels indicates how much water vapour the air contains compared to the maximum it could contain at that temperature. As a general guide:

0 to 30 is very low
31 to 50 is low
51 to 70 is moderate to low
71 to 80 is moderate
81 to 90 is moderate to high
91 to 100 is high

Pressure is measured in millibars (mb)

Visibility based on whether the human eye can see the following distances:

Very poor - less than 1km
Poor - between 1km and 4km
Moderate - between 4km and 10km
Good - between 10km and 20km
Very good - between 20km and 40km
Excellent - more than 40km

Temperature in Seattle

Sunlight in Seattle

Precipitation in Seattle

Humidity in Seattle

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