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When is the best time to visit Seattle?

The best time to visit Seattle is between May and October, the most comfortable stretch of the year on these averages.

Seattle has four seasons without a desert summer or a guaranteed freeze. Pack for mixed weather. The good outdoor weeks are real, and so are the grey ones. Seattle is a city in United States. This page is about Seattle, not a country average.

Most visitors come for cities, walking and the milder stretch of the year. Treat midwinter as museums and food unless you like weather for its own sake. The monthly table owns the averages. This layer is how Seattle actually feels.

Part of United States weather.

Seattle
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Spring

Spring in Seattle is when the year becomes walkable again. March, April and May are mixed: bright days, wet days, and the odd reminder that winter has not fully left.

In Seattle the meteorological summer is June, July and August and winter is December, January and February. This is a good month-range for a city break that wants outdoor hours without betting the packing list on heat. Carry a shell.

Read Seattle in this stretch as its own climate, not as a generic holiday season copied from another destination.

Summer

Summer in Seattle is the most usable stretch of the year: June, July and August. Long days, milder nights, and outdoor weather that makes a city break feel like a holiday.

In Seattle the meteorological summer is June, July and August and winter is December, January and February. It is still a mixed-sky climate. A grey afternoon is not a surprise. Pack for sitting outside and for the hour you duck into a museum because the sky decided otherwise.

Read Seattle in this stretch as its own climate, not as a generic holiday season copied from another destination.

Autumn

Autumn in Seattle is the second spring, then a slide: September, October and November. Early weeks are for walking. Later weeks are for jackets and shorter outdoor plans.

In Seattle the meteorological summer is June, July and August and winter is December, January and February. Rain returns as a planning constraint. Seattle in these months is still a good city-break climate if you pack for weather instead of for a brochure afternoon.

Read Seattle in this stretch as its own climate, not as a generic holiday season copied from another destination.

Winter

Winter in Seattle is grey, wet and short on daylight: December, January and February. Snow is possible and not the identity of the season. Museums, food and walking between showers are the trip.

In Seattle the meteorological summer is June, July and August and winter is December, January and February. A bright winter afternoon in Seattle is worth going out for. The rest of the day is not a failed summer. It is the climate this place actually has.

Read Seattle in this stretch as its own climate, not as a generic holiday season copied from another destination.

Seattle weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 1 Oct 2026358 places covered

Average temperature and rainfall, month by month

Every figure below is a 1991–2020 climate normal for Seattle, in °C and °F. Open a month for what to expect and what to pack.

Seattle weather by month: average temperature, rainfall and wind for each month, from 1991–2020 climate normals
MonthAverageRainfall
January6°C / 42°F147 mm
February6°C / 43°F96 mm
March8°C / 46°F106 mm
April10°C / 51°F81 mm
May14°C / 57°F48 mm
June16°C / 62°F37 mm
July19°C / 67°F15 mm
August19°C / 67°F25 mm
September17°C / 62°F41 mm
October12°C / 53°F99 mm
November8°C / 46°F160 mm
December5°C / 41°F147 mm

Where to stay in Seattle

Dates are a starting point for May.

All hotels in Seattle

Travel guides for Seattle

What to read before you book.

All travel guides in Seattle

Check another month

Now pick a month.

FAQs about Seattle weather

Climate averages for Seattle, 1991–2020.

The best time to visit Seattle is between May and October, the most comfortable stretch of the year on these averages.

August is the hottest month, with an average around 19°C.

November is the wettest month, with about 160 mm of rain.

Seattle has a distinct rainy season from October to March, peaking in November at about 160 mm. The dry season runs from April to September.

December is the coolest month, averaging 5°C (41°F) against 19°C (67°F) in August.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what each month is usually like, which is what you want when booking ahead. For today or the coming week, check a live forecast.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.