Seattle Weather & Climate

United States of America

Seattle sees feels-like daytime highs peak around 28.8°C in July and nighttime lows bottom out near 3°C in January. November is the wettest month (~185 mm), while July is the driest (~22 mm). For sunshine, August leads with about 70% clear skies.

Best time to visit Seattle

Based on mild feels-like temperatures and low rain chances, the most comfortable months are June, September, and August — expect around 15.724.9°C with roughly 24% chance of rain on a given day in June.

Seattle climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January3° / 8.4°47%155 mm29%8 kph
February4.1° / 9.7°44%128 mm31%7.8 kph
March5.8° / 12.9°48%118 mm33%7.6 kph
April8.3° / 16.8°39%81 mm39%6.8 kph
May11.9° / 20.7°31%58 mm45%5.8 kph
June15.7° / 24.9°24%41 mm53%5.2 kph
July18.4° / 28.8°13%22 mm69%4.7 kph
August18.3° / 28.8°12%23 mm70%4.7 kph
September14.8° / 24.7°21%47 mm61%5.4 kph
October10.3° / 17.1°40%117 mm45%6.7 kph
November6.1° / 10.8°54%185 mm32%8.1 kph
December3° / 7.6°51%174 mm29%8.3 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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