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Seattle weather and climate
North America

Seattle

United States · weather & climate

47°36′N · 122°19′W
Right now · July

Seattle in july

Current month averages, based on ten years of records. Read the full guide →

High
25.3°C
Low
14.6°C
Rain
13mm
Sun
12.7h

Seattle sits at 47°36′N 122°19′W in United States, in North America. Its climate profile is shaped by these coordinates — and the ten years of records below reveal exactly how each season feels on the ground.

Below, you'll find monthly averages for temperature, rainfall and sunshine, drawn from the Open-Meteo Archive. Every month links to a full guide with what to pack, where to stay, and when to arrive.

Chapter I

The year in weather

Annual chart
Seattle — monthly average temperature and rainfall
0°5°10°15°20°25°30°0100200JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC°Cmmpageweather.com · Open-Meteo 2015 — 2026
High °C
Low °C
Rain mm
Frequently asked

Seattle weather — FAQ

Q01

When is the best time to visit Seattle?

The best months to visit Seattle are May, June, July, August. These months offer the most favourable combination of comfortable temperatures, lower rainfall, and more hours of daily sunshine — based on ten years of climate records.

Q02

What is the hottest month in Seattle?

August is the hottest month in Seattle, with average high temperatures reaching 26°C (78°F). Consider whether this heat suits your travel plans.

Q03

What is the coldest month in Seattle?

December is the coldest month in Seattle, with average high temperatures around 8°C (46°F). Pack accordingly — a warm coat and layers are essential.

Q04

Which month has the most rain in Seattle?

December is the wettest month in Seattle, averaging around 193mm of rainfall. If you visit in this month, plan indoor alternatives and bring proper rain gear.

Q05

What is the climate like in Seattle?

Seattle, United States has mild summers, cold winters, moderate seasonal rainfall. You can read the detailed month-by-month breakdown on this page.