Which is the hottest month in Seattle?

The hottest time of year in Seattle is normally July. Expect maximum daytime temperatures to reach 24°C.

Which month has the most rain in Seattle?

In terms of rainfall, December is usually the wettest month in Seattle with 151mm on average. There are normally 18 days in December with some rain.

When is it sunniest in Seattle?

The sunniest time of year in Seattle is normally July with bright sunshine on average for 64% of daylight hours; that's 10 hours of sunshine per day.

Best time to visit Seattle

Q: When is the best time to visit Seattle?

The best time to visit Seattle is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Seattle by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Seattle?

The best time to visit Seattle is July based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0.5
Feb
1
Mar
1.5
Apr
3
May
4
Jun
5
Jul
4.5
Aug
4
Sep
0.5
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°F)

45
Jan
50
Feb
54
Mar
57
Apr
64
May
70
Jun
75
Jul
75
Aug
70
Sep
61
Oct
52
Nov
46
Dec

Hours of Sunshine (daily)

2
Jan
4
Feb
5
Mar
7
Apr
8
May
9
Jun
10
Jul
9
Aug
7
Sep
5
Oct
2
Nov
2
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Washington State (Seattle) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)