When to go
The Best Time to Visit Seattle
Month-by-month climate data for Seattle, United States — daily highs and lows, rain days, and an honest verdict for every month of the year.
June–September. Long dry summer days when the mountains come out from behind the clouds.
Warmest in Seattle: Jul (25°C / 77°F) · Coolest: Jan (8°C / 46°F) · Wettest: Jan (~20 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Seattle climate, month by month
January
8° / 3°C
~20 rain days
Tough
February
8° / 3°C
~14 rain days
Fair
March
10° / 3°C
~14 rain days
Fair
April
13° / 5°C
~13 rain days
Good
May
17° / 9°C
~12 rain days
Good
June
21° / 12°C
~9 rain days
Excellent
July
25° / 15°C
~2 rain days
Excellent
August
25° / 15°C
~6 rain days
Excellent
September
21° / 13°C
~8 rain days
Excellent
October
15° / 9°C
~13 rain days
Good
November
10° / 5°C
~18 rain days
Fair
December
8° / 3°C
~20 rain days
Tough
Plan around it
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