Aurora Borealis in Varkaus

Finland · 62.32°, 27.87° · geomagnetic 59.3° · needs Kp 5

Tonight's aurora forecast for Varkaus

46%

Peak chance of a visible display tonight, from the same model the Revon app runs. Varkaus needs Kp 5 to see anything at all, and tonight the forecast peaks at Kp 4.7. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
46%
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Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Varkaus

Varkaus is located at 59.3° geomagnetic latitude. Auroras are typically visible when the Kp index reaches 5 or higher.

With an average of 19.5 viable nights per year, patient observers have a chance to witness auroras.

The historical record for viable aurora nights spans from 2016 to 2026.

The best months for aurora viewing in Varkaus are September, March, and October.

However, during May, June, July, and August, there is no full darkness, which may impact viewing opportunities.

Varkaus experiences a Bortle 6 light pollution level. Areas to the east-south-east near Varkaus, such as Lajunniemi, offer Bortle 3 conditions.

Further afield, Bortle 5 conditions can be found to the south-east.

The local horizon includes features like the headland at Lajunniemi to the north, the island of Suursaari to the east-north-east, Piensaari island to the east-north-east, the hill Sorvamäki to the north-north-west, and the headland at Karttuniemi to the west.

Geographic features near Varkaus include the headland at Lajunniemi, located 3.3 km north of the city.

To the east-north-east, the islands of Suursaari and Piensaari are situated approximately 3.4 km and 3.6 km away, respectively.

Further points of interest include the hill Sorvamäki, 3.7 km north-north-west, and the headland Karttuniemi, 3.7 km west of Varkaus.

Between 2015 and 2016, 159 verified aurora reports were recorded within a 300 km radius of Varkaus.

The historical data indicates viable aurora nights occurred on March 20-24, 2026, with Kp values ranging from 5.0 to 7.0.

The record span for viable nights is from 2016 to 2026.

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

Know when it is worth going outside

Revon watches the Varkaus forecast and pushes an alert when the odds for tonight clear your threshold — no checking, no guessing.

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Nearby towns

Forecasts for places within reach of Varkaus.