Weather in Sammamish in August

Sammamish, United States averages a high of 24.3°C (75.7°F) and low of 13.8°C (56.8°F) in August, with 6 rain days and 11.6 hours of daily sunshine. Travel score: 87.3/100 (Excellent). The best time to visit Sammamish is July.

High
24°C76°F
Low
14°C57°F
🌧️
6
rain days
☀️
11.6
hrs/day sunshine
💧
73%
humidity
87Excellent

August in Sammamish is warm and mostly dry — ideal for sightseeing and outdoor activities.

What are the average temperatures in Sammamish?

JanFebMarAprMayJunJulAug24°14°SepOctNovDec

How much does it rain in Sammamish in August?

Sammamish receives an average of 44mm of rainfall across 6 rainy days in August. The annual total is 1646.2mm.

JanFebMarAprMayJunJulAug6dSepOctNovDec

What should I pack for Sammamish 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