Aurora Borealis in Crowthorne
United Kingdom · 51.37°, -0.79° · geomagnetic 53.4° · needs Kp 7
Tonight's aurora forecast for Crowthorne
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Crowthorne 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 Crowthorne
Crowthorne is at a geomagnetic latitude of 53.4°.
Auroras are typically visible at this latitude when the planetary Kp index reaches 7.
Based on historical data, there are approximately 2.7 nights per year when conditions are suitable for viewing.
The best months for aurora viewing in Crowthorne are September, August, and November.
However, during June and July, there is not enough full darkness for optimal viewing conditions.
Crowthorne experiences a Bortle 7 level of light pollution.
Areas with Bortle 4 conditions are located 98 km to the south, and Bortle 5 conditions are found 52 km south-west near Winchester.
Notable features around Crowthorne include Bagshot Park to the east-north-east, Stag Island to the north-west, Temple Island to the west-north-west, Ribs Down to the east, and Marshall's Hill to the west-north-west.
Bagshot Park is a park located 6.6 km east-north-east of Crowthorne.
Stag Island is an island situated 7.9 km north-west of Crowthorne.
Temple Island, another island, lies 8.1 km west-north-west of Crowthorne. Ribs Down is a hill 10.5 km east of Crowthorne, and Marshall's Hill is a hill 12.6 km west-north-west of Crowthorne.
There have been 56 verified aurora reports within 300 km of Crowthorne between January 1, 2015, and December 31, 2016.
The period from 2016 to 2026 includes several nights with significant geomagnetic activity, such as 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 Crowthorne 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 Crowthorne.