When to go · Seattle
Seattle in August
Great month. Inside Seattle's best window: Jun–Sep.
Key facts
- Verdict
- Great
- Temperature
- 78°C (172°F)172°F (78°C) / 57°C (135°F)135°F (57°C)
- average high / low
- Rain days
- 6
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Inside Seattle's best window: Jun–Sep.
Is another month better than August?
No other month rates higher than August for Seattle in this guide.
Weather in August
- SeattleHighs around 78 °C (172 °F), lows around 57 °C (135 °F), rain on about 6 daysHighs around 172 °F (78 °C), lows around 135 °F (57 °C), rain on about 6 days
- Pacific Northwest, United States · Seattle, Portland, Olympic, Mount Rainierbest weather
Grey and damp October–May; July–September is dry and clear, with wildfire smoke in some years.
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Seattle, side by side.
Verdict
Aug: Great
Jun: Great
Daytime high
Aug: 78 °C (172 °F)172 °F (78 °C)
Jun: 71 °C (160 °F)160 °F (71 °C)
Night low
Aug: 57 °C (135 °F)135 °F (57 °C)
Jun: 53 °C (127 °F)127 °F (53 °C)
Rain days
Aug: 6 (better)
Jun: 9
Crowds
Aug: High
Jun: High
Prices
Aug: High
Jun: High
Festivals listed
Aug: 0
Jun: 0
August: Inside Seattle's best window: Jun–Sep.
June: Inside Seattle's best window: Jun–Sep.
Seattle: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen