Aurora Borealis in Chalk Farm
United Kingdom · 51.54°, -0.15° · geomagnetic 53.4° · needs Kp 7
Tonight's aurora forecast for Chalk Farm
1%
Peak chance of a visible display tonight, from the same model the Revon app runs. Chalk Farm 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.
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Updated 2026-09-08 10:36 UTC
Local aurora guide for Chalk Farm
Chalk Farm is at a geomagnetic latitude of 53.4 degrees.
Auroras are typically visible at this latitude when the Kp index reaches 7.
On average, there are 2.7 nights per year with conditions suitable for aurora viewing.
The best months for aurora viewing in Chalk Farm are September, August, and November.
During June and July, there is no full darkness, which can impact viewing conditions.
Chalk Farm experiences significant light pollution, with a Bortle rating of 9.
Areas with less light pollution, such as Bortle 4 conditions, are located 80 km to the east.
Further afield, Bortle 5 conditions can be found near Braintree, approximately 68 km to the north-east. Notable terrain features include hills to the north and west, and parks and lakes to the east.
To the north of Chalk Farm, Highgate is a hilly area located 3.2 km away.
To the east, Springfield Park and Lee Valley Park are park areas situated around 7.2 km away.
Further east, Hollow Ponds is a lake located 11.7 km away. To the west-north-west, Wakemans Hill Avenue is a hilly area 8.9 km away.
Between 2015 and 2016, 55 verified aurora sightings were reported within 300 km of Chalk Farm.
The historical record indicates that auroras visible from this region have occurred on nights with Kp values as low as 7.0, with notable instances recorded in late 2025 and early 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
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Forecasts for places within reach of Chalk Farm.