Best Time to Run in Seattle

Today's best window: 3 PM6 PM. Full verdict and 7-day windows below.

Get Seattle Weather in the App
Today in SeattleGood window

Best window to run: 3 PM6 PM

Temperature
66°F
Humidity
75%
Wind
9 mph

Today in Seattle. Best window to run: 3 PM–6 PM. 66°F, 9 mph wind, 75% humidity. Backup window: 12 PM–3 PM. The verdict: a solid window — take it.

Forecast generated Wed, 02 Sep 2026 04:07:56 GMTRun Window engine

7-Day Run Windows for Seattle

The best hour to run each day, scored against the Run Window engine.

Today
09-01
3 PM6 PM
66°F, 9 mph wind, 75% humidity
Good window
Tomorrow
09-02
9 AM12 PM
63°F, feels 58°, 13 mph wind
Good window
Thursday
09-03
3 PM6 PM
66°F, 42% rain
Fair
Friday
09-04
12 PM3 PM
68°F, clear
Good window
Saturday
09-05
6 PM9 PM
66°F, clear
Good window
Sunday
09-06
9 PM10 PM
61°F, clear
Good window
Monday
09-07
9 PM10 PM
63°F, clear
Good window

Windows are calculated for a default runner comfort zone. With Run Window installed, these tune to your own preferences as you log runs.

Quick Answer: Running in Seattle

Best MonthsJune, July, August, September
Temp Range36°F – 75°F
ClimateOceanic
Top TipLight rain is common but rarely heavy

Running in Seattle: A Seasonal Guide

Seattle's oceanic climate shapes the running experience across all four seasons. The mild climate makes year-round running possible, though each season has its own character.

Peak season (June and July): Expect the best combination of temperature, daylight, and dry conditions. These months reward runners who plan their weekly mileage around the weather.

Off-season strategy: Even the off-season stays runnable. Watch for rain windows rather than temperature extremes. Short weather breaks often open up ideal conditions.

Local runners know that summers are surprisingly dry and perfect for running. Also worth noting: hills provide excellent training terrain.

Best Months to Run

JuneJulyAugustSeptember

June, July, August, September offer the most comfortable running conditions in Seattle. During these months, you'll find mild temperatures and manageable weather patterns perfect for outdoor running.

Seasonal Running Temperatures

Temperature Range by Season

Ideal running range (44–59°F)
Winter
36°47°
Spring
42°58°
Summer
55°75°
Fall
45°60°
30°F50°F70°F80°F
Winter

Low: 36°F

High: 47°F

Spring

Low: 42°F

High: 58°F

Summer

Low: 55°F

High: 75°F

Fall

Low: 45°F

High: 60°F

Running Weather Tips for Seattle

1

Light rain is common but rarely heavy

2

Summers are surprisingly dry and perfect for running

3

Hills provide excellent training terrain

4

Overcast skies mean less UV exposure

Best time to run in Seattle, month by month

The verdict above is for today. For climatology-backed guides on every month of the year:

Popular Running Routes in Seattle

Burke-Gilman TrailDiscovery ParkGreen Lake

Frequently Asked Questions

What's today's best window to run in Seattle?+
Today in Seattle. Best window to run: 3 PM–6 PM. 66°F, 9 mph wind, 75% humidity. Backup window: 12 PM–3 PM. The verdict: a solid window — take it.
What is the best time to run in Seattle?+
The best months for running in Seattle are June, July, August, September. Seattle has a oceanic climate, so plan your runs accordingly.
What weather challenges do runners face in Seattle?+
Light rain is common but rarely heavy
What are the average running temperatures in Seattle?+
Winter temperatures range from 36°F to 47°F, while summer temperatures range from 55°F to 75°F.

Get Personalized Run Windows for Seattle

Run Window analyzes hourly weather in Seattle and learns your preferences to tell you exactly when to run. No more checking multiple weather apps.

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