Aurora Borealis in Portadown
United Kingdom · 54.42°, -6.44° · geomagnetic 57.2° · needs Kp 7
Tonight's aurora forecast for Portadown
35%
Peak chance of a visible display tonight, from the same model the Revon app runs. Portadown 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 Portadown
Portadown is at a geomagnetic latitude of 57.2°.
Auroras are typically visible here when the Kp index reaches 7.
On average, there are 2.6 nights per year with aurora potential.
The best months for aurora viewing in Portadown are September, August, and November.
Full darkness is not possible during May, June, and July.
Portadown has a Bortle scale rating of 5.
Areas with a Bortle rating of 4 are found 51 km to the north-west.
Bortle 5 conditions are also present 9 km to the north-north-west near Armagh City, Banbridge and Craigavon District Council.
Lough Gullion is a lake located 6.7 km north of Portadown.
Ardmore Point, a headland, is 8.7 km north-north-east.
Oxford Island, a reserve, is 9.0 km north-north-east of Portadown.
There have been 230 verified aurora reports within 300 km between 2015 and 2016.
The record span for aurora potential is from April 2, 2016, to March 30, 2026.
Notable potential aurora nights include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (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 Portadown 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 Portadown.