LoupeLabMoon Phase in Seattle Today
Sunday, August 30, 2026 · United States
Waning Gibbous
94% illuminated
Tonight’s Moon in Seattle
Best viewing at 10:45 PM facing E · 21° above horizon
The Moon & Seattle
northern latitude with large seasonal moon altitude swings
Lunar Culture in Seattle
The Coast Salish peoples of the Puget Sound region have detailed lunar traditions. The Duwamish and Suquamish tracked tidal patterns tied to moon phases for clam harvesting and salmon fishing. Today, the Museum of Flight and Pacific Science Center carry on astronomical education. Seattle's famously overcast skies make clear moonlit nights a celebrated event.
How the Moon Affects Seattle
Puget Sound's complex tidal system is driven by lunar cycles, with tidal ranges exceeding 3.5 meters in some areas. This affects everything from ferry schedules to shellfish harvesting permits. The region's geoduck, oyster, and clam harvests are legally restricted to specific tidal windows calculated from moon position. Salmon runs in rivers like the Skagit and Snoqualmie are also influenced by tidal lunar cycles.
Best Moon Viewing in Seattle
Kerry Park on Queen Anne Hill offers a moonrise view over Elliott Bay with Mount Rainier in the background when skies are clear. Check cloud forecasts carefully since Seattle averages only 71 clear nights per year.
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Upcoming Lunar Events
New Moon
Thursday, September 10, 2026
Full MoonHarvest Moon
Saturday, September 26, 2026
New Moon
Saturday, October 10, 2026
Full MoonHunter's Moon
Sunday, October 25, 2026
New Moon
Sunday, November 8, 2026
Full MoonBeaver Moon
Tuesday, November 24, 2026
Moonphase Watches & Seattle
Set Your Moonphase Watch in Seattle
To set your moonphase complication in Seattle: wait for the next full moon (Saturday, September 26), then advance the moonphase disc to show a full moon centered in the aperture. Set the time to 8:17 PM local time. Use our drift calculator to check if your complication has drifted since you last set it.
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