Aurora Borealis in Thetford
United Kingdom · 52.42°, 0.75° · geomagnetic 54.1° · needs Kp 7
Tonight's aurora forecast for Thetford
2%
Peak chance of a visible display tonight, from the same model the Revon app runs. Thetford 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 10:35 UTC
Local aurora guide for Thetford
Thetford is at a geomagnetic latitude of 54.1 degrees. Auroras are typically visible when the planetary Kp index reaches 7 or higher.
With an average of 2.7 viable nights per year, aurora viewing requires patience and persistence. The historical record spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Thetford are September, August, and November. These months offer a good balance of darkness and potential aurora activity.
During June and July, the region experiences no full darkness, which significantly reduces the chances of seeing the aurora.
Thetford has a Bortle scale rating of 5, indicating a suburban sky. Areas with lower Bortle numbers offer darker skies.
A Bortle 4 sky can be found 50 km north-west near King's Lynn and West Norfolk. A Bortle 5 sky is available 9 km north near Breckland District.
The horizon is characterized by features such as the Brettenham Heath National Nature Preserve to the east-north-east, Stanton Downham Park to the north-west, and Thetford Forest Park also to the north-west.
Nearby natural areas include Brettenham Heath National Nature Preserve, located 6.3 km east-north-east of Thetford.
Stanton Downham Park is situated 6.9 km north-west of Thetford, and Thetford Forest Park is 8.1 km north-west.
Further afield, Birdcage Island lies 16.2 km north-north-west, and Saham Mere is 18.7 km north-north-east.
Historical records show 58 verified aurora reports within 300 km of Thetford between January 1, 2015, and December 31, 2016.
The region has experienced an average of 2.7 viable aurora nights per year, based on data spanning from April 2, 2016, to March 30, 2026.
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 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 Thetford 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 Thetford.