Aurora Borealis in Seattle
United States · 47.61°, -122.33° · geomagnetic 53.1° · needs Kp 7
Tonight's aurora forecast for Seattle
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Seattle needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.
Get the full 30-night forecast in Revon
Updated 2026-09-08 10:36 UTC
Local aurora guide for Seattle
Seattle is located at 53.1° geomagnetic latitude. Auroras are typically visible at this latitude when the Kp index reaches 7.
On average, there are about 3.2 nights per year in Seattle where conditions are suitable for aurora viewing.
The historical record spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Seattle are May, September, and August.
These months align with periods of increased darkness, which is essential for observing the aurora.
Seattle experiences a Bortle 8 sky, indicating significant light pollution.
Areas with darker skies, such as near King County approximately 45 km east-south-east, offer Bortle 4 conditions.
Local features like Kinnear Park, Queen Anne Hill, Harrison Ridge, Interlaken Park, and Lake Union are within a few kilometers of Seattle.
Kinnear Park is a park located 3.5 km north-west of Seattle.
Queen Anne Hill, a mountain, is situated 3.5 km north-north-west of Seattle.
Harrison Ridge, a ridge, is found 3.6 km east-north-east of Seattle. Interlaken Park, another park, is 3.7 km north-north-east of Seattle. Lake Union, a lake, is 3.9 km north of Seattle.
Between January 1, 2015, and December 31, 2016, there were 60 verified aurora reports within 300 km of Seattle.
Notable qualifying nights with high Kp values include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Additional qualifying nights occurred on November 12, 2025 (Kp 7.33) and November 11, 2025 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports
Know when it is worth going outside
Revon watches the Seattle forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
Nearby towns
Forecasts for places within reach of Seattle.