Northern lights Mehamn tonight
Mehamn sits at ~71°N magnetic latitude on the Barents Sea coast of eastern Finnmark. Kp 1 is the threshold - one of the lowest in mainland Norway. Slettnes Lighthouse, 20 km east, is the northernmost road-accessible point of the European mainland, with Bortle Class 1-2 sky and a 270° open sea horizon. Polar night (mørketid) runs approximately 20 November to 22 January. Best season: October to April.
Aurora visibility - Mehamn
Possible tonight
Kp 1 is at the threshold for Mehamn. Aurora may be visible from a dark site if cloud cover permits.
Current Kp
1
of 9
7-day outlook for Mehamn
Today
3 Jun
Tomorrow
4 Jun
Fri
5 Jun
Sat
6 Jun
Sun
7 Jun
Mon
8 Jun
Tue
9 Jun
Based on CME arrival predictions from NASA DONKI. Arrival times ±6 hours.
auroratonight.space
What Kp is needed here?
Mehamn sits at a magnetic latitude of approximately 71°N. The Kp index - a global measure of geomagnetic activity on a scale from 0 (quiet) to 9 (extreme storm), updated every 3 hours - needs to reach Kp 1 before the auroral oval expands far enough south to be visible from here.
At Kp 1, visibility is possible from Mehamn but skies need to be clear and dark. Cloud cover and light pollution remain the main obstacles even when Kp is high enough.
Best dark sky sites near Mehamn
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Mehamn harbour headland
Get directions ↗The headland at Mehamn gives an open Barents Sea horizon to the north and northeast. Mehamn is a small fishing village with minimal light pollution outside the working harbour area. Bortle Class 2 from the headland positions away from the quay lights. At Kp 1, aurora appears above the dark northern horizon over the Barents Sea - at 71°N magnetic latitude this is among the lowest Kp levels needed anywhere on the Norwegian mainland. The headland is exposed and cold in winter; wind chill at the coast can be severe when winds come off the Barents Sea. Suitable clothing is essential. The harbour itself has working lights that affect the immediate surroundings, so the headland 200-300 m to the northwest gives cleaner sky.
Slettnes Lighthouse
Get directions ↗Slettnes is the northernmost point of the European mainland accessible by road, and the site of the Slettnes Lighthouse (1905). The lighthouse sits on a flat, treeless headland at 71°N with the Barents Sea on three sides. Bortle Class 1-2. There is zero settlement light pollution at the headland - the nearest village is Gamvik, 3 km to the west. The aurora is frequently visible in multiple directions simultaneously from this position given the 270° open sea horizon. The road from Mehamn is sealed but narrow and may be icy in winter. The landscape is flat tundra - there is no elevated terrain to block any part of the sky. This is one of the most northerly drive-to aurora positions in mainland Norway.
Gamvik village coast
Get directions ↗Gamvik is a small village 3 km west of Slettnes Lighthouse, on the Barents Sea coast. The shore at Gamvik faces north over open water. Bortle Class 2. A useful intermediate stop between Mehamn and Slettnes for those who want a quick dark sky position without driving the full distance to the lighthouse. The village has a small guesthouse and is the nearest settlement to Slettnes. In winter, the Gamvik coast road is ploughed and accessible. From the shore, aurora appears above the dark water to the north with the flat Finnmark tundra behind.
Best time to see the northern lights in Mehamn
At 71°N magnetic latitude, Mehamn has one of the longest aurora seasons in the world. Meaningful darkness returns in late August and displays are possible on almost any clear night from September through March. Only the endless daylight of May, June, and July rules out viewing completely.
Activity peaks around the September and March equinoxes, when Earth's magnetic field geometry is most favourable for coupling with the solar wind. Events during these two windows tend to produce the strongest displays of the year for observers at Mehamn's latitude.
May through July is effectively impossible for aurora viewing: the midnight sun keeps the sky bright around the clock at this latitude. No storm level, not even G5, can produce a visible display without astronomical darkness.
Compare nearby locations
Up to 4 locations
How often does aurora appear in Mehamn?
Average nights per month when Kp reaches 1+ - based on 15 years of data
Best month
October
Average aurora nights per year
169
Kp threshold
1+
Based on 15 years of geomagnetic data (2010-2024). Shows nights when Kp reached 1+ at any point in the day - cloud cover and local darkness not included. Months with no astronomical darkness show zero.
Kp data: GFZ German Research Centre for Geosciences, CC BY 4.0
Plan your trip to Mehamn
Based on 15 years of geomagnetic data
October
31.1
avg aurora nights
Requires an extended stay
February
27.3
avg aurora nights
Stay 1+ nights for 80% chance
March
25.3
avg aurora nights
Stay 1+ nights for 80% chance
Best window
The October to December window averages 79 aurora nights - the strongest consecutive stretch of the year.
How long to stay
Aurora at this latitude requires patience - allow as many nights as possible during October.
Related pages
Northern Lights Norway
Norway-wide aurora forecast and location hub.
Northern Lights Honningsvåg Tonight
Honningsvåg - North Cape gateway, 190 km west.
Northern Lights Alta Tonight
Alta - aurora museum and Finnmark plateau.
Northern Lights Kirkenes Tonight
Kirkenes - Russian border and Barents Sea, far eastern Finnmark.
Northern Lights in Norway Guide
Complete guide to seeing the northern lights in Norway.
What Is the Kp Index?
Why Kp 1 is enough at 71°N magnetic latitude.
Common questions
Aurora watching in Mehamn - Slettnes Lighthouse, polar night logistics, and reaching eastern Finnmark.