Weather in Seattle in August
Seattle, United States averages a high of 24°C (75.2°F) and low of 14.1°C (57.4°F) in August, with 5 rain days and 11.8 hours of daily sunshine. Travel score: 90.1/100 (Excellent). The best time to visit Seattle is July.
High
24°C75°F
Low
14°C57°F
🌧️
5
rain days
☀️
11.8
hrs/day sunshine
💧
69%
humidity
90— Excellent
August in Seattle is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in Seattle?
How much does it rain in Seattle in August?
Seattle receives an average of 31.9mm of rainfall across 5 rainy days in August. The annual total is 1249.4mm.
What should I pack for Seattle in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
🎉Visiting United States in August?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31