Aurora Borealis in St Austell
United Kingdom · 50.34°, -4.77° · geomagnetic 53.0° · needs Kp 7
Tonight's aurora forecast for St Austell
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. St Austell 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 St Austell
The aurora borealis is visible at Kp 7, which is a strong geomagnetic storm. St Austell is at 53.0° geomagnetic latitude.
On average, there are 2.8 nights per year with aurora visibility. The record span for these observations is from 2016-04-02 to 2026-03-30.
The best months for aurora viewing are September, May, and August. These months offer a good balance of darkness and aurora activity.
June experiences no full darkness, which can impact viewing opportunities during this period.
St Austell is classified as Bortle 4, indicating a dark sky location. A Bortle 4 rating suggests minimal light pollution.
Nearby areas, such as 10 km south near Cornwall, also fall within Bortle 4 conditions.
The horizon is characterized by Ruddle Moor (hill) to the north-north-west, Caerloggas Downs (hill) to the north-north-west, Largin Wood (forest reserve) to the north-east, Zacry's Island South (island) to the west-north-west, and Porth Island (island) to the west-north-west.
Ruddle Moor is a hill located 3.1 km north-north-west of St Austell.
Caerloggas Downs is another hill situated 3.6 km north-north-west of St Austell.
Largin Wood, a forest reserve, is found 18.2 km north-east of St Austell. Zacry's Island South is an island 22.3 km west-north-west of St Austell, and Porth Island is an island 22.7 km west-north-west of St Austell.
There have been 11 verified aurora reports within 300 km of St Austell between January 1, 2015, and December 31, 2016.
The record span for viable aurora nights is from April 2, 2016, to March 30, 2026.
Notable qualifying nights include 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 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 St Austell 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 St Austell.