Aurora Borealis in Viborg

Denmark · 56.45°, 9.40° · geomagnetic 56.6° · needs Kp 7

Tonight's aurora forecast for Viborg

18%

Peak chance of a visible display tonight, from the same model the Revon app runs. Viborg needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 4.8. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Viborg

Viborg is located at 56.6° geomagnetic latitude. Auroras are typically visible at this latitude during periods of strong geomagnetic activity, specifically when the Kp index reaches 7 or higher.

On average, there are about 2.5 nights per year in Viborg where conditions are suitable for aurora viewing, based on historical data from 2016 to 2026.

The best months for aurora viewing in Viborg are September, November, and August. These months offer a good balance of darkness and potential aurora activity.

During May, June, and July, there is not enough darkness for aurora viewing due to the extended daylight hours.

Viborg experiences a Bortle 4 sky, indicating a relatively dark sky with some impact from artificial light. Areas with Bortle 4 conditions are generally good for observing faint celestial objects.

The surrounding landscape offers varied horizons. Notable features include Loldrup Sø (lake) to the north-east, Vanhøje (hill) to the east-north-east, and Vansø (lake) also to the east-north-east. Further out, Galgehøj (hill) is to the north-north-west, and Hjarbæk Fjord (bay) is to the north-north-west.

Near Viborg, Loldrup Sø is a lake located 4.8 km to the north-east. Vanhøje, a hill, is situated 6.6 km to the east-north-east.

Vansø, another lake, is found 7.0 km to the east-north-east of Viborg. Galgehøj, a hill, lies 9.5 km to the north-north-west.

Hjarbæk Fjord, a bay, is located 12.3 km to the north-north-west of Viborg.

There have been 8 verified aurora reports within 300 km of Viborg between January 1, 2015, and December 31, 2016.

Based on historical Kp data, qualifying nights for aurora viewing in the Viborg area include March 20, 2026 (Kp 7.0), January 20, 2026 (Kp 7.67), and January 19, 2026 (Kp 8.67).

Additional qualifying nights include November 12, 2025 (Kp 7.33) and November 11, 2025 (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

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Nearby towns

Forecasts for places within reach of Viborg.