Best Time to Visit Seattle, Washington, USA
Seattle is at its sunniest and driest in June–September.
The best time to visit Seattle for sunny, dry weather is June–September — 4 months of the year fit our sunny profiles at this specific location. The drier stretch runs through April–October; the wetter half falls in November–March. At the city itself, monthly average temperatures range from 4.8°C / 40.6°F in January to 18.4°C / 65.1°F in August, with rainfall from 25 mm / 1 in (July) to 161 mm / 6.3 in (December). These are point-value climate normals sampled at Seattle, Washington, United States of America's coordinates — usually more actionable for travellers than the country-wide average. Seattle's climate is broadly seasonal. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| June | 15.7°C60.3°F | 42 mm1.7″ | Sunny & Mild |
| July | 18.1°C64.6°F | 25 mm1″ | Sunny & Mild |
| August | 18.4°C65.1°F | 31 mm1.2″ | Sunny & Mild |
| September | 15.7°C60.3°F | 45 mm1.8″ | Sunny & Mild |
Frequently asked questions
When is the best time to visit Seattle?
The best time to visit Seattle for sunny, dry weather is June, July, August, September. At the city itself, the warmest month is August averaging 18.4°C / 65.1°F, and the driest is July with about 25 mm / 1 in of rain. These are point-value climate normals sampled at Seattle's coordinates.
When is the rainy season in Seattle?
The rainy season at Seattle, Washington runs through November–March, when monthly rainfall exceeds the annual median of about 85 mm / 3.3 in. The wettest single month is December (161 mm / 6.3 in).
What is the driest month in Seattle?
The driest month in Seattle is July, averaging about 25 mm / 1 in of rainfall. Temperature that month averages 18.1°C / 64.6°F.
What months should I avoid visiting Seattle?
The least comfortable months for travel to Seattle — based on point-value climate at the city — are January, February, November, December. These are the wettest or coolest months at this location. Rainfall peaks at 161 mm / 6.3 in in December, and the coldest month averages 4.8°C / 40.6°F.
Is Seattle climate different from United States of America overall?
Yes, usually. Our Seattle figures are point-value climate normals sampled at the city itself, while our United States of America figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Seattle specifically — usually the more actionable data for a traveller planning to spend time in the city.