Aurora Borealis in Chester
United Kingdom · 53.19°, -2.89° · geomagnetic 55.4° · needs Kp 7
Tonight's aurora forecast for Chester
7%
Peak chance of a visible display tonight, from the same model the Revon app runs. Chester needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.9. 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 Chester
Chester is at a geomagnetic latitude of 55.4°, which is favorable for aurora viewing.
An aurora event requires a Kp index of 7 or higher. Based on historical data, there are approximately 2.7 nights per year in Chester where conditions might be suitable for viewing an aurora.
The best months for aurora viewing in Chester are September, August, and November.
These months offer the necessary darkness, unlike May, June, and July when there is no full darkness.
Chester experiences a Bortle 8 sky, indicating significant light pollution.
Areas with darker skies, such as Bortle 4 and 5, can be found near Conwy, approximately 61 km and 46 km west-south-west respectively.
Local terrain features include Stanlow Point to the north, Helsby Hill to the north-east, Mount Manisty to the north, Spike Island to the north-north-east, and Sefton Park to the north.
Between 2016 and 2026, there were 2.7 viable nights per year for aurora viewing in Chester.
Verified aurora sightings in the wider region totaled 124 between 2015 and 2016.
Notable qualifying nights in the historical record 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 Chester 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 Chester.