Aurora Borealis in Greenock
United Kingdom · 55.95°, -4.76° · geomagnetic 58.4° · needs Kp 5
Tonight's aurora forecast for Greenock
51%
Peak chance of a visible display tonight, from the same model the Revon app runs. Greenock 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 Greenock
Greenock is at 58.4° geomagnetic latitude. Auroras visible here typically require a Kp 5 or higher.
On average, there are 22.6 nights per year with conditions suitable for aurora viewing.
Records span from April 2, 2016, to March 30, 2026.
The best months for aurora viewing in Greenock are September, March, and October.
During May, June, and July, there is no full darkness, which can impact viewing conditions.
Greenock has a Bortle scale rating of 5, indicating a suburban sky.
Areas with darker skies, rated Bortle 3, are located 31 km west near Argyll and Bute.
Notable features around Greenock include Gourock Bay to the west-north-west, Kempock Point and Tower Hill to the west-north-west, Meikleross Bay to the north-north-west, and Roseneath Point to the north.
Geographic features near Greenock include Gourock Bay, a bay located 3.3 km west-north-west.
Kempock Point and Tower Hill are headland and hill features, respectively, both 3.9 km west-north-west of Greenock.
Further north-north-west is Meikleross Bay, a bay 4.4 km away, and Roseneath Point, a headland 4.4 km north.
There have been 239 verified aurora reports within 300 km of Greenock between January 1, 2015, and December 31, 2016.
The period from April 2, 2016, to March 30, 2026, includes several nights with significant geomagnetic activity.
Notable qualifying nights within this span include March 20-24, 2026, with Kp values ranging from 5.0 to 7.0.
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 Greenock 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 Greenock.