Aurora Borealis in Port Alberni
Canada · 49.24°, -124.80° · geomagnetic 54.3° · needs Kp 7
Tonight's aurora forecast for Port Alberni
2%
Peak chance of a visible display tonight, from the same model the Revon app runs. Port Alberni 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 10:35 UTC
Local aurora guide for Port Alberni
The aurora borealis is typically visible in Port Alberni when the geomagnetic activity reaches Kp 7 or higher.
At 54.3° geomagnetic latitude, Port Alberni experiences an average of 3.1 nights per year with sufficient geomagnetic activity for potential aurora viewing.
These viewing opportunities are spread across the 2016-2026 record span.
The best months for aurora viewing in Port Alberni are May, September, and August.
June experiences no full darkness, which can impact viewing conditions.
Port Alberni has a Bortle scale rating of 4, indicating a dark sky environment.
Areas with similar dark sky conditions, such as near Area F (Cherry Creek) 4 km east-north-east, also fall within Bortle 4.
The surrounding terrain includes Devils Den Lake to the west-north-west, McCoy Lake to the west-north-west, and Stirling Arm bay to the west.
Geographic features near Port Alberni include Devils Den Lake, located 4.5 km west-north-west.
McCoy Lake is situated 6.5 km west-north-west.
Stirling Arm bay lies 8.5 km west of Port Alberni.
There are 40 verified aurora reports within 300 km of Port Alberni between January 1, 2015, and December 31, 2016.
The record span for viable nights extends from April 2, 2016, to March 30, 2026.
Notable qualifying nights within this period include 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 Port Alberni 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 Port Alberni.