Aurora Borealis in Perth
United Kingdom · 56.40°, -3.43° · geomagnetic 58.6° · needs Kp 5
Tonight's aurora forecast for Perth
52%
Peak chance of a visible display tonight, from the same model the Revon app runs. Perth needs Kp 5 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 Perth
Auroras are visible when the planetary geomagnetic activity reaches Kp 5 or higher. Perth is located at 58.6° geomagnetic latitude.
On average, there are 22.3 nights per year with sufficient geomagnetic activity for auroras to be potentially visible.
The record span for these observations is from 2016 to 2026.
The best months for aurora viewing in Perth are September, March, and October.
During May, June, and July, there is no full darkness, which can impact viewing conditions.
Perth has a Bortle scale rating of 4, indicating a dark sky environment.
Areas with Bortle 4 conditions are found 12 km north-north-west of Perth.
Notable terrain features include Deuchny Hill to the east, Murrayshall Hill to the east-north-east, and King's Seat to the north-east.
Deuchny Hill is a hill located 3.5 km east of Perth.
Murrayshall Hill, another hill, is situated 5.1 km east-north-east of Perth.
King's Seat is a mountain 14.8 km north-east of Perth, and Craig Lea, also a mountain, is 18.3 km west-north-west of the city. Marlie Loch is a lake 19.2 km north of Perth.
There have been 241 verified aurora reports within 300 km of Perth between January 2015 and December 2016.
The data indicates that nights with sufficient geomagnetic activity (Kp 5.0 or higher) occurred on March 20, 21, 22, 23, and 24 in 2026.
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 Perth 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 Perth.