Aurora Borealis in Grimsby
United Kingdom · 53.57°, -0.08° · geomagnetic 55.4° · needs Kp 7
Tonight's aurora forecast for Grimsby
6%
Peak chance of a visible display tonight, from the same model the Revon app runs. Grimsby 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 Grimsby
Grimsby is at 55.4° geomagnetic latitude. Auroras visible here typically require a Kp of 7 or higher.
On average, there are about 2.7 nights per year suitable for aurora viewing in this region.
The record span for these observations is from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Grimsby are September, August, and November.
During May, June, and July, there is no full darkness, which can impact viewing conditions.
Grimsby has a Bortle scale rating of 6, indicating moderate light pollution.
Areas with darker skies, rated Bortle 4, can be found approximately 21 km north-north-east near East Riding of Yorkshire.
Notable features around Grimsby include Hawkins Point, Stallingborough Haven, Sunk Island, North Channel, and Spurn Head.
Hawkins Point is a headland located 7.7 km north-east of Grimsby.
Stallingborough Haven is a bay situated 8.3 km north-west of Grimsby.
Sunk Island is an island 9.4 km north of Grimsby, and the North Channel is a bay 9.5 km east-north-east of the town.
There have been 101 verified aurora reports within 300 km of Grimsby between January 1, 2015, and December 31, 2016.
The period of record for viable aurora nights spans from April 2, 2016, to March 30, 2026.
Specific qualifying nights with high Kp values 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 Grimsby 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 Grimsby.