Best Time to Visit Seattle
✨ Best Months to Visit
Experience Seattle's vibrant summer atmosphere and outdoor activities from June to August.
🌤️
August
25°C · 31mm rain
🌤️
July
25.4°C · 7mm rain
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June
21.2°C · 48mm rain
Average Monthly Temperature
Click a month below to see its details.
🌤️
August
RecommendedHigh 25°C · Low 15.3°C · 31mm rain · 11.2h sun/day
7.8°C
Jan
8°C
Feb
10.9°C
Mar
13.4°C
Apr
17.3°C
May
21.2°C
Jun
25.4°C
Jul
25°C
Aug
21.1°C
Sep
15.4°C
Oct
10.3°C
Nov
8.1°C
Dec
Month-by-Month Climate
Full breakdown for every month.
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Rainy
January
High 7.8°C / Low 2.4°C
171mm rain
4.1h sun/day
❄️
Cold
February
High 8°C / Low 2.3°C
109mm rain
4.8h sun/day
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Mild & Sunny
March
High 10.9°C / Low 3.9°C
98mm rain
7h sun/day
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Mild & Sunny
April
High 13.4°C / Low 5.5°C
73mm rain
9h sun/day
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Mild & Sunny
May
High 17.3°C / Low 8.9°C
56mm rain
9.9h sun/day
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Mild & Sunny
June ★
High 21.2°C / Low 12.1°C
48mm rain
11.5h sun/day
🌤️
Mild & Sunny
July ★
High 25.4°C / Low 14.7°C
7mm rain
13h sun/day
🌤️
Mild & Sunny
August ★
High 25°C / Low 15.3°C
31mm rain
11.2h sun/day
🌤️
Mild & Sunny
September
High 21.1°C / Low 12.9°C
50mm rain
9.2h sun/day
⛅
Mild
October
High 15.4°C / Low 9.1°C
112mm rain
6.5h sun/day
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Rainy
November
High 10.3°C / Low 5.3°C
171mm rain
4.3h sun/day
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Rainy
December
High 8.1°C / Low 3.7°C
201mm rain
3.3h sun/day
Climate data: 5-year average (2021-2025), via Open-Meteo.