Aurora Borealis in Earlsfield
United Kingdom · 51.44°, -0.19° · geomagnetic 53.3° · needs Kp 7
Tonight's aurora forecast for Earlsfield
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Earlsfield 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 Earlsfield
Auroras visible from Earlsfield require a geomagnetic activity level of Kp 7 or higher. This level of activity is reached on an average of 2.7 nights per year.
The geomagnetic latitude of Earlsfield is 53.3°.
Records of geomagnetic activity in this region span from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Earlsfield are September, August, and November.
During June and July, there is no full darkness, which may impact viewing conditions.
Earlsfield experiences significant light pollution, with a Bortle rating of 9.
Areas with darker skies, rated Bortle 4, are located 82 km to the east. Bortle 5 skies can be found 78 km to the north-east near Braintree.
Local terrain features include Putney Heath park 3.4 km west-north-west, Battersea Park and Boating Lake 4.4 km north-north-east, Chiswick Eyot island 6.4 km north-west, and King Henry VIII Mound hill 7.6 km west.
Putney Heath is a park located 3.4 km west-north-west of Earlsfield.
Battersea Park and Boating Lake are situated 4.4 km north-north-east of Earlsfield.
Chiswick Eyot is an island 6.4 km north-west of Earlsfield, and King Henry VIII Mound is a hill 7.6 km west.
There are 52 verified aurora reports within 300 km of Earlsfield between January 1, 2015, and December 31, 2016.
The period from April 2, 2016, to March 30, 2026, has recorded several nights with geomagnetic activity levels suitable for aurora viewing.
Notable qualifying nights 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 Earlsfield 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 Earlsfield.