North & Central America · City travel
Best time to visit Seattle
Late Jun–Late Sep is the best time to visit. During this period, the average daytime high is 24.0°C, with 1.1 rainy days per 10 days.
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Season calendar
AvoidOff-seasonFairOkayGoodGreatBest
Japan MOFA travel advice
No Japan MOFA travel advisory is in effect for this destination.
Climate and season score by month
| Month | Level | Daytime high | Rainy days (per 10 days) | Cloud cover |
|---|---|---|---|---|
| January | Avoid | 8.8°C | 4.8 | 78.4% |
| February | Off-season | 9.8°C | 4.2 | 74.0% |
| March | Fair | 12.2°C | 4.2 | 77.1% |
| April | Good | 15.1°C | 3.6 | 72.4% |
| May | Great | 18.7°C | 2.5 | 69.1% |
| June | Great | 21.7°C | 1.9 | 64.5% |
| July | Best | 25.2°C | 0.6 | 44.4% |
| August | Best | 25.2°C | 0.8 | 47.2% |
| September | Best | 21.7°C | 1.8 | 52.2% |
| October | Great | 16.0°C | 3.4 | 66.3% |
| November | Fair | 11.4°C | 4.9 | 76.2% |
| December | Avoid | 8.6°C | 4.8 | 77.9% |
How the score works
The season score is a relative 0–100 measure of how suitable each time of year is for travel at this destination, grouped into seven levels. It combines climate-normal trends in temperature, rain, cloud cover, and other conditions.
Weather station: SEATTLE BOEING FLD（7 km）. Data: NASA POWER, NOAA GHCN-Daily, OISST, IBTrACS, and Natural Earth.
These are historical climate-normal trends, not a weather forecast.