Aurora Borealis in Westbury
United Kingdom · 51.26°, -2.19° · geomagnetic 53.5° · needs Kp 7
Tonight's aurora forecast for Westbury
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Westbury 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 Westbury
Westbury is located at 53.5° geomagnetic latitude. Auroras are typically visible at this latitude during periods of strong geomagnetic activity, specifically when the Kp index reaches 7 or higher.
On average, there are approximately 2.7 nights per year in this region where conditions are suitable for aurora viewing, based on historical data spanning from 2016 to 2026.
The months of September, August, and November offer the best opportunities for aurora viewing in Westbury due to the combination of aurora activity and darkness.
During June and July, the region experiences periods without full darkness, which can significantly reduce the visibility of auroral displays.
Westbury is classified as Bortle 7, indicating a suburban sky with moderate light pollution. Areas with darker skies, such as Bortle 4, are located approximately 90 km to the south-south-east.
A Bortle 5 sky is available about 13 km to the east, near Wiltshire. Several elevated locations offer potential viewing points, including Clanger Hill to the north-north-east and Tinhead Hill to the east.
Clanger Hill, a hill located 3.5 km north-north-east of Westbury, provides a vantage point.
Tinhead Hill, situated 7.1 km east of Westbury, is another elevated area.
Erlestoke Park, a park 9.9 km east-north-east, and Henrietta Park, a park 18.2 km north-west, are also noted geographic features.
Records indicate 52 verified aurora reports within a 300 km radius of Westbury between January 2015 and December 2016.
Based on historical Kp data, qualifying nights for aurora viewing have occurred on dates such as March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Additional qualifying nights include November 12, 2025 (Kp 7.33) and November 11, 2025 (Kp 8.67), within the analyzed record span.
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 Westbury forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.
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Forecasts for places within reach of Westbury.