Aurora Borealis in Chesham
United Kingdom · 51.70°, -0.60° · geomagnetic 53.6° · needs Kp 7
Tonight's aurora forecast for Chesham
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Chesham 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 Chesham
Chesham is at 53.6° geomagnetic latitude. Auroras are typically visible here when the planetary Kp index reaches 7.
On average, there are 2.7 nights per year suitable for aurora viewing in this region. The historical record spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Chesham are September, August, and November. These months offer a good balance of darkness and aurora activity.
During June and July, there is no full darkness due to twilight, which can significantly reduce the visibility of auroras.
Chesham experiences a Bortle 8 sky, indicating significant light pollution. Areas with Bortle 4 skies are located 113 km to the east, and Bortle 5 skies are 79 km to the west near the Cotswold District.
Notable features around Chesham include Dancersend Nature Reserve to the north-west, Haddington Hill also to the north-west, and Aldbury Nowers to the north. To the east-north-east, Heron Island and Verulamium Lake are noted.
Dancersend Nature Reserve is located 10.8 km north-west of Chesham. Haddington Hill, a hill feature, is situated 11.1 km north-west.
Aldbury Nowers, another hill, is found 12.7 km north of Chesham. Further east-north-east, Heron Island is 18.1 km away, and Verulamium Lake is 18.2 km away.
There have been 59 verified aurora reports within 300 km of Chesham between January 1, 2015, and December 31, 2016.
The historical record indicates potential viewing nights on 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 Chesham 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 Chesham.