Aurora Borealis in Greenford
United Kingdom · 51.53°, -0.36° · geomagnetic 53.4° · needs Kp 7
Tonight's aurora forecast for Greenford
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Greenford 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 Greenford
Greenford is located at 53.4° geomagnetic latitude. Auroras are typically visible at this latitude during geomagnetic storms of Kp 7 or higher.
On average, there are about 2.7 nights per year in Greenford where conditions are suitable for aurora viewing.
The record span for aurora observations in this region is from 2016-04-02 to 2026-03-30.
The best months for aurora viewing in Greenford are September, August, and November.
During June and July, there is no full darkness, which can impact aurora visibility.
Greenford experiences a Bortle 9 sky, indicating significant light pollution.
Areas with Bortle 4 conditions are located 94 km to the east, and Bortle 5 conditions are found near Braintree, 79 km to the north-east.
Notable terrain features include hills near Sudbury (4.3 km north-north-east) and Harrow on the Hill (5.2 km north-north-east), as well as parks like Church Field Gardens (7.2 km north-west) and Denham Country Park (10.1 km west-north-west).
Consider areas with clearer horizons, such as the hills near Sudbury, located 4.3 km north-north-east of Greenford.
Harrow on the Hill, a hill 5.2 km north-north-east of Greenford, may offer different vantage points.
Parks like Church Field Gardens (7.2 km north-west) and Denham Country Park (10.1 km west-north-west) are also noted geographic features.
There have been 54 verified aurora reports within 300 km of Greenford between 2015 and 2016.
The period from 2016-04-02 to 2026-03-30 includes several nights with significant geomagnetic activity, such as Kp 7.0 on 2026-03-20, Kp 7.67 on 2026-01-20, and Kp 8.67 on 2026-01-19.
Further qualifying nights include 2025-11-12 at Kp 7.33 and 2025-11-11 at Kp 8.67.
Sources: Revon location dataset · 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 Greenford 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 Greenford.