Northern lights Tromsvik tonight
Tromsvik sits at ~70°N magnetic latitude on the mainland coast approximately 35 km north of Tromsø. Kp 1–2 is the threshold. The north-facing coastal headland gives an open Arctic Ocean horizon with Bortle Class 2 sky - substantially darker than Tromsø city for a 40-minute drive. The Ullsfjorden fjord system lies to the east. Best season: October to April, including polar night from late November.
Aurora visibility - Tromsvik
Possible tonight
Kp 1 is at the threshold for Tromsvik. Aurora may be visible from a dark site if cloud cover permits.
Current Kp
1
of 9
7-day outlook for Tromsvik
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?
Tromsvik sits at a magnetic latitude of approximately 70°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 1–2 before the auroral oval expands far enough south to be visible from here.
At Kp 1–2, visibility is possible from Tromsvik 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 Tromsvik
Light pollution is the biggest obstacle after cloud cover. These sites give you the best dark northern horizon within reach.
Tromsvik coastal headland
Get directions ↗The north-facing headland at Tromsvik gives an open Arctic Ocean horizon with the Polar Sea ahead and minimal light pollution to the north. The settlement is small and generates negligible sky glow at the headland positions. Bortle Class 2. At Kp 1-2, aurora arcs appear above the northern horizon over dark water. The position is approximately 35 km north of Tromsø city by road, placing it well inside the auroral zone and away from the city light dome. In calm conditions the sea gives aurora reflections. A practical alternative to Tromsø city for those with a hire car who want darker sky without a long detour.
Ullsfjorden western shore
Get directions ↗The western shore of Ullsfjorden gives views east across the fjord toward the mountain wall on the opposite bank. At night the fjord surface is dark and the eastern peaks create a silhouette line against the sky. Bortle Class 2. Ullsfjorden runs roughly north-south and the positions on the western shore give both a northern horizon over the sea (at the fjord mouth) and a framed view of the mountains to the east. Aurora activity overhead is visible across the full width of sky above the fjord opening. The sealed coast road gives multiple stop points along the shore.
Elevated viewpoint above Tromsvik
Get directions ↗The hillside behind Tromsvik gives an elevated position above any residual coastal light and extends the visible horizon. At 300-400 m, the viewpoint is above the low-lying coastal haze that can form on cold clear nights. Bortle Class 1-2 from the upper slopes. The horizon extends north over the Arctic Ocean, east toward Ullsfjorden, and south toward Tromsø - on active nights, aurora arcs are visible in multiple directions simultaneously. The hike requires a headtorch and suitable footwear; in winter, micro-spikes are useful on the upper section. Allow time to reach the viewpoint before aurora activity begins.
Best time to see the northern lights in Tromsvik
At 70°N magnetic latitude, Tromsvik 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 Tromsvik'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.
How often does aurora appear in Tromsvik?
Average nights per month when Kp reaches 1+ - based on 15 years of data
Best month
October
Average aurora nights per year
176
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 Tromsvik
Based on 15 years of geomagnetic data
October
31.1
avg aurora nights
Requires an extended stay
March
28.6
avg aurora nights
Stay 1+ nights for 80% chance
February
27.3
avg aurora nights
Stay 1+ nights for 80% chance
Best window
The January to March window averages 81 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 Tromsø Tonight
Tromsø - aurora capital of Norway, 35 km south.
Northern Lights Sommarøy Tonight
Sommarøy - island west of Tromsø, open Atlantic horizon.
Northern Lights Senja Tonight
Senja - dramatic coastline and dark sky south of Tromsø.
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 70°N magnetic latitude.
Common questions
Aurora watching at Tromsvik - comparing it to Tromsø city and deciding between mainland coast positions.