Aurora Borealis in Bellingham
United States · 48.76°, -122.49° · geomagnetic 54.2° · needs Kp 7
Tonight's aurora forecast for Bellingham
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Bellingham 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 Bellingham
Bellingham is located at 54.2° geomagnetic latitude. Auroras are typically visible when the planetary Kp index reaches 7 or higher.
With an average of 3.1 viable nights per year, aurora viewing requires patience and favorable conditions. The historical record spans from April 2, 2016, to March 30, 2026.
The darkest months for viewing in Bellingham are typically in June. However, the aurora season is most favorable during May, September, and August.
This period offers a balance of darkness and potential auroral activity.
Bellingham experiences a Bortle 6 sky, indicating moderate light pollution. For darker skies, Bortle 4 conditions can be found 34 km away near Sedro-Woolley, and Bortle 5 conditions are available 17 km east near Whatcom County.
Local terrain features include King Mountain to the north-north-east, Toad Lake and Toad Mountain to the east-north-east, and Nooksack State Wildlife Area to the north-west. Fish Point is located to the west.
Geographic features near Bellingham include King Mountain, located 5.1 km to the north-north-east. Toad Lake and Toad Mountain are situated 7.7 km and 7.8 km to the east-north-east, respectively.
Further afield, the Nooksack State Wildlife Area is an 8.3 km north-west feature, and Fish Point is a cape 8.4 km to the west.
Historical data shows 58 verified aurora reports within 300 km of Bellingham between January 1, 2015, and December 31, 2016.
The record of viable nights includes March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), January 19, 2026 (Kp 8.67), November 12, 2025 (Kp 7.33), and November 11, 2025 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Solar declination and hour-angle calculation · 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 Bellingham 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 Bellingham.