When to go · Seattle
Seattle in September
Great month. Inside Seattle's best window: Jun–Sep.
Key facts
- Verdict
- Great
- Temperature
- 72°C162°F / 54°C129°F
- average high / low
- Rain days
- 8
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
GreatBest and avoid months for Seattle
Inside Seattle's best window: Jun–Sep.
Weather in September
- SeattleHighs around 72 °C, lows around 54 °C, rain on about 8 daysHighs around 162 °F, lows around 129 °F, rain on about 8 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.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
What to pack
- Light, breathable clothes, a sun hat and sunscreen