Aurora Borealis in Penarth
United Kingdom · 51.44°, -3.17° · geomagnetic 53.8° · needs Kp 7
Tonight's aurora forecast for Penarth
2%
Peak chance of a visible display tonight, from the same model the Revon app runs. Penarth 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 Penarth
Penarth is at 53.8° geomagnetic latitude. Auroras visible here require a Kp of 7 or higher.
On average, there are 2.7 nights per year with conditions suitable for aurora viewing.
The historical record spans from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Penarth are September, August, and November.
During June and July, there is no full darkness, which can impact viewing conditions.
Penarth experiences a Bortle 7 sky, indicating significant light pollution.
Darker skies, Bortle 4, can be found approximately 53 km north-west near Neath Port Talbot.
Darker skies, Bortle 5, can be found approximately 35 km north near Blaenau Gwent.
Dinas Powis, a hill, is located 3.7 km west of Penarth.
Park Wood Hill, another hill, is situated 4.2 km west of Penarth.
Cardiff Arms Park is a park located 4.6 km north of Penarth.
There have been 52 verified aurora reports within 300 km of Penarth between January 1, 2015, and December 31, 2016.
The historical record indicates potential viewing nights occurred on March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).
Additional potential viewing nights include November 12, 2025 (Kp 7.33), and November 11, 2025 (Kp 8.67).
Sources: Revon analysis of NOAA planetary Kp · Revon location dataset · 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 Penarth 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 Penarth.