Aurora Borealis in Hounslow
United Kingdom · 51.47°, -0.36° · geomagnetic 53.4° · needs Kp 7
Tonight's aurora forecast for Hounslow
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Hounslow 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 Hounslow
Hounslow is at a geomagnetic latitude of 53.4°. Auroras are typically visible at this latitude when the Kp index reaches 7.
On average, there are 2.7 nights per year in Hounslow where conditions are suitable for aurora viewing.
The period between 2016 and 2026 has been analyzed for aurora viewing potential.
The best months for aurora viewing in Hounslow are September, August, and November.
During June and July, there is not enough darkness for aurora viewing.
Hounslow experiences a Bortle 9 sky, indicating significant light pollution.
Areas with Bortle 4 skies are located 94 km to the east, and Bortle 5 skies are found 81 km to the southwest near Winchester.
Local features such as King's Observatory, Old Deer Park, Johnsons Island, Kew Royal Botanic Gardens, and Lot's Ait are to the east and northeast of Hounslow.
Between 2015 and 2016, there were 53 verified aurora reports within 300 km of Hounslow.
The period from 2016 to 2026 includes several nights with high Kp values, 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 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 Hounslow 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 Hounslow.