Aurora Borealis in South Croydon
United Kingdom · 51.36°, -0.09° · geomagnetic 53.2° · needs Kp 7
Tonight's aurora forecast for South Croydon
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. South Croydon 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.
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Updated 2026-09-08 10:36 UTC
Local aurora guide for South Croydon
South Croydon is at 53.2° geomagnetic latitude. Auroras visible here require a Kp 7 or higher.
On average, there are 2.7 nights per year with conditions suitable for aurora viewing. These opportunities are recorded between 2016 and 2026.
The best months for aurora viewing in South Croydon are September, August, and November. These months offer the longest periods of darkness.
During June and July, there is no full darkness, which can impact aurora visibility.
South Croydon experiences a Bortle 8 sky, indicating significant light pollution. Areas with Bortle 4 skies are located 77 km east-north-east, and Bortle 5 skies are 68 km south near Brighton.
The horizon to the north is marked by Crystal Palace hill (5.5 km) and Sydenham Hill (8.0 km). To the north-west, Cranmer Green park is 6.3 km away. Cator Park is 6.5 km to the north-east.
Further west-north-west, Fishpond Wood Nature Reserve is 12.8 km away.
North of South Croydon are the hills of Crystal Palace, 5.5 km away, and Sydenham Hill, 8.0 km away. Cranmer Green, a park, is situated 6.3 km to the north-west.
Cator Park is located 6.5 km to the north-east. Fishpond Wood Nature Reserve is found 12.8 km to the west-north-west.
There are 47 verified aurora reports within 300 km of South Croydon between 2015 and 2016.
Notable aurora events recorded in the vicinity include nights with Kp values of 7.0 on 2026-03-20, 7.67 on 2026-01-20, 8.67 on 2026-01-19, 7.33 on 2025-11-12, and 8.67 on 2025-11-11.
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
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Revon watches the South Croydon 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 South Croydon.