Weather in Seattle in September

Expect typical autumn conditions in September. Rainfall can vary, so check the latest local forecast before your trip. September typically sits between August and October conditions, so it is useful for travelers wanting a balanced window in Seattle. Pack flexible layers for changing daytime and evening temperatures.

Our September Hotel Picks for Seattle

Grand Hyatt Seattle

Warm rooms & suites in an upscale, high-rise lodging offering a spa, intimate dining & event space.

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The Westin Seattle

Airy rooms in a contemporary lodging with an indoor pool, a fitness center & a burger restaurant.

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The Woodmark Hotel and Still Spa on Lake Washington

Traditional quarters in an upscale waterfront hotel with a spa, plus loaner bikes & kayaks.

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What to Do in Seattle in September

Kerry Park

Panoramic views of Downtown & the Space Needle draw visitors to this small neighborhood park.

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Warren G. Magnuson Park

Leafy city park along the shores of Lake Washington, with historic art deco homes, wetlands & art.

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Olympic Sculpture Park

An offshoot of the Seattle Art Museum, this park features numerous sculptures spread over 9 acres.

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Travel tips for Seattle in September

Pack flexible layers for changing daytime and evening temperatures. Book accommodation earlier when events overlap with peak weekends, and keep an eye on changing weather windows for day trips.

FAQ: Seattle in September

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