Seattle, US Clear Sky Chart

Seattle, US (47.61°, -122.33°) · Updated 07:32 PDT
0
Poor
medium confidence ⓘ
medium · Forecast stability

Tonight's forecast has shifted a little across recent updates — worth a re-check closer to dusk. We compare how much tonight's score has moved across our recent forecast updates, a score that's held steady is more trustworthy.

Confidence reflects how trustworthy the forecast is, it doesn't change the score.

Probably skip tonight
Heavy cloud expected but bright moonlight limits faint objects. Some dew risk later in the night.
Sunset
17:59
Sunrise
07:47
Usable Hours
0/12
Moon
93%
Visible Planets
♂ Mars51° SE
♃ Jupiter45° SE
♄ Saturn44° S
⛢ Uranus63° S
♆ Neptune42° S
Sky darkness
City sky (Bortle 8-9)
SQM 17.7, estimated from satellite night lights. A property of the place, separate from tonight’s score. How we estimate this
Open Full Seattle, US Forecast →
Hour-by-hour scores · Planet rise/set & visibility · ISS & satellite passes · Moon detail · Full score breakdown · Aurora & observer profiles

Stargazing in Seattle, US

Seattle's famously cloudy reputation is earned — the Pacific Northwest sees around 150 clear nights per year, mostly concentrated in summer. When it clears, the skies are rewarding: Bortle 5–6 in the city drops to Bortle 3 within 90 minutes heading into the Cascades. Mount Rainier and Olympic National Park offer pristine dark skies. Seattle's northern latitude (47.6°N) provides long summer twilights but also a realistic chance of aurora with Kp 5+ activity.

Seattle, US Stargazing FAQ

How many clear nights does Seattle get?∨
Seattle sees around 150 clear nights per year, mostly concentrated in summer (July-September). The Pacific Northwest's reputation for rain is earned, but when it clears, the skies can be exceptionally transparent.
Where is the best dark sky near Seattle?∨
Mount Rainier and Olympic National Park offer pristine dark skies within 2 hours. The Cascades east of the city reach Bortle 3 conditions. Table Mountain east of Ellensburg is a popular amateur astronomy site.
Can you see the northern lights from Seattle?∨
Occasionally — at 47.6°N, strong geomagnetic storms (Kp 6+) can produce visible aurora displays. The Olympic Mountains to the north-west can obstruct the view, so open northern horizons east of the city are best.

Stargazing guides

Is Tonight Good for Stargazing?

The answer depends on five things you can check right now.

Light Pollution & the Bortle Scale

How dark is your sky: and what difference does it make?

What Planets Are Visible Tonight?

Real visibility data for all 7 naked-eye and telescope planets, calculated for your location.

Meteor Shower Calendar 2026

Every shower this year: peak dates, expected rates, moon interference, and the two you absolutely cannot miss.

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