Aurora Borealis in Saint John

Canada · 45.27°, -66.06° · geomagnetic 54.5° · needs Kp 7

Tonight's aurora forecast for Saint John

3%

Peak chance of a visible display tonight, from the same model the Revon app runs. Saint John needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 5.0. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
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Updated 2026-09-08 10:35 UTC

Local aurora guide for Saint John

Saint John is located at 54.5° geomagnetic latitude. Auroras visible at this latitude typically require a Kp of 7 or higher.

Based on historical data, there are approximately 3.2 nights per year where conditions are suitable for aurora viewing in this region. The record span for this data is from April 2, 2016, to March 30, 2026.

The best months for aurora viewing in Saint John are May, September, and August. These months offer a good overlap between darker skies and the potential for aurora activity.

Saint John experiences a Bortle 5 sky. Areas with darker skies, such as Bortle 3, can be found nearby.

Darker skies, rated Bortle 3, are located 24 km east near the Village of Fundy-St. Martins. Closer to the city, Bortle 5 conditions are found 5 km east-south-east near the City of Saint John.

Notable features around Saint John include Crystal Lake, Howe Lake, Pleasant Point, Blue Point, and Swift Point Lighthouse.

Areas around Saint John that may offer viewing opportunities include Crystal Lake, located 3.3 km north-north-west, and Howe Lake, 3.6 km north-north-west.

Coastal features such as Pleasant Point, 3.3 km west, and Blue Point, 3.7 km west-north-west, are also noted.

Swift Point Lighthouse is situated 5.3 km west-north-west of Saint John.

There have been 58 verified aurora reports within 300 km of Saint John between January 1, 2015, and December 31, 2016.

Notable qualifying nights in the historical data include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).

Additional qualifying nights include November 12, 2025 (Kp 7.33) and November 11, 2025 (Kp 8.67).

Sources: Revon location dataset · Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports

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Nearby towns

Forecasts for places within reach of Saint John.