Aurora Borealis in Baie-Comeau

Canada · 49.22°, -68.15° · geomagnetic 58.5° · needs Kp 5

Tonight's aurora forecast for Baie-Comeau

43%

Peak chance of a visible display tonight, from the same model the Revon app runs. Baie-Comeau needs Kp 5, and tonight the forecast peaks at Kp 5.0. That is on the threshold rather than over it, so cloud and moonlight will decide the night.

Tonight Tue 08 Sep
43%
18
20
22
00
02
04
06

Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Baie-Comeau

Baie-Comeau generally needs planetary Kp 5 before the aurora borealis reaches the local sky. Historical Kp and darkness data produce about 27.2 viable nights a year across 10.0 years of records.

The strongest historical overlap of darkness and activity occurs in September, March and May. From June, limited astronomical darkness can prevent viewing.

The central sky is approximately Bortle 3.

Sources: Revon analysis of NOAA planetary Kp · Solar declination and hour-angle calculation · Falchi 2016 World Atlas of artificial night sky brightness

Know when it is worth going outside

Revon watches the Baie-Comeau forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.

Get aurora alerts on iPhone

Nearby towns

Forecasts for places within reach of Baie-Comeau.