Troms, NorwayMagnetic latitude 66.8°Population 3,90715 m above sea level
Northern lights in Senja
Senja sits right under the auroral oval: on clear, dark nights the aurora is often overhead, even when activity is quiet. Clouds matter far more than the Kp number here.
Right now
It is still light here. Darkness starts at 19:13.
Updates every minute while this page is open.
Tonight in one minute
Not tonight
- Solar activity Strong enough: Kp 2.7 expected, 0 needed here.
- Sky Overcast (92% cloud).
- Darkness Dark from 19:13 to 05:55.
What to do: Not tonight — your next chance is shown just below.
- Detailed forecast Fri 16 2.7 Possible · Kp 2.7
- Sat 17 1.7 Possible · Kp 1.7
- Sun 18 1.7 Possible · Kp 1.7
- 27-day trend Mon 19 2 Possible · Kp 2
- Tue 20 3 Possible · Kp 3
- Wed 21 4 Good chance · Kp 4
- Thu 22 4 Possible · Kp 4
- Fri 23 4 Possible · Kp 4
- Sat 24 3 Possible · Kp 3
- Sun 25 2 Possible · Kp 2
- Mon 26 2 Possible · Kp 2
- Tue 27 2 Possible · Kp 2
- Wed 28 2 Possible · Kp 2
- Thu 29 2 Possible · Kp 2
- Fri 30 5 Possible · Kp 5
- Sat 31 5 Possible · Kp 5
- Sun 1 5 Possible · Kp 5
- Mon 2 3 Possible · Kp 3
- Tue 3 2 Possible · Kp 2
- Wed 4 2 Possible · Kp 2
- Thu 5 3 Possible · Kp 3
- Fri 6 3 Possible · Kp 3
- Sat 7 3 Possible · Kp 3
Wednesday 21 October — Possible · Kp 3 · best around 00:00 · Forecast cloud: 83%. · Reliability: low (rough trend)
Each box is one night: the colour shows the chance, the number the expected Kp. Tap a night for details.
📅 Add these nights to your calendar — it updates itself (.ics)
How far ahead can the northern lights be forecast?
- Minutes to an hour: satellites 1.5 million km away measure the solar wind before it reaches Earth. This is the surest warning — the “Right now” box uses it.
- 1–3 days: when the Sun throws out a cloud of particles, it takes one to three days to arrive. NOAA's 3-hourly forecast covers these nights; the timing can still be off by a few hours.
- 4–27 days: the Sun turns once every 27 days, and regions that disturbed Earth's field last time often do it again. NOAA's 27-day outlook gives this rough trend — new eruptions are not in it yet.
Tonight
Updated 15:43 local time
Unlikely
Best around 04:00. Forecast max Kp 2.7 (this place needs 0), average cloud 92%.
- Dark enough
- 19:13 – 05:55
- Sunset
- 17:04 · sunrise 08:05
- Moon
- 31%
- Kp neededKp index: a 0–9 measure of geomagnetic activity. The higher it is, the further from the poles the aurora reaches.
- Kp 0
- Look towards
- north (354°)
Clearer skies nearby tonight
Tonight's cloud forecast is similar in every direction within 100 km (92% here), so driving is unlikely to help.
MET Norway forecast at 24 points within 100 km, averaged over the dark hours. Check roads and conditions before driving.
Score = activity (NOAA Kp and OVATION) × clear sky (MET Norway) × darkness × moonlight. Methodology
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What you would see from Senja
Facing north. Bands show where the aurora sits at two activity levels.
| Kp | What you see | Lower edge | Ray tops | Distance to the aurora |
|---|---|---|---|---|
| 0 | Overhead and all around | – | – | – |
| 2 | Overhead, and also to the south | – | – | – |
| 3 | Overhead, and also to the south | – | – | – |
| 4 | Overhead, and also to the south | – | – | – |
| 5 | Overhead, and also to the south | – | – | – |
| 6 | Overhead, and also to the south | – | – | – |
| 7 | Overhead, and also to the south | – | – | – |
| 8 | Overhead, and also to the south | – | – | – |
| 9 | Overhead, and also to the south | – | – | – |
The Kp scale in plain words
Kp is a 0–9 score for how strongly the Earth's magnetic field is being shaken by the solar wind. The higher it goes, the further from the poles the northern lights reach. Kp 0–2 is a quiet night; Kp 5 and above is a geomagnetic storm.
- Kp 0–2 Quiet eye in Senja Only under the auroral oval: northern Norway, Swedish and Finnish Lapland, Iceland, Alaska, northern Canada.
- Kp 3 Unsettled next 24 h Bright in the Arctic; low on the horizon in central Scandinavia and southern Iceland.
- Kp 4 Active Overhead in the Arctic; low in the north from southern Norway, Sweden, Finland and northern Scotland.
- Kp 5 Minor storm (G1) Scotland, southern Scandinavia, the Baltic states, the northern US states and southern Canada.
- Kp 6 Moderate storm (G2) Northern England, Denmark, northern Germany and Poland, the US Midwest — often clearer in photos than to the eye.
- Kp 7 Strong storm (G3) Most of the UK, the Netherlands, Germany, Poland, Czechia; red glow in photos from France and the northern Alps.
- Kp 8 Severe storm (G4) Central Europe to the eye; red sky in photos from northern Italy, Spain, the Balkans and Turkey's Black Sea coast.
- Kp 9 Extreme storm (G5) Seen across Europe and the US; in photos as far south as the Mediterranean, Turkey and North Africa (May 2024).
Light pollution
Rural to suburban. Some sky glow from nearby lights. Moderate displays are fine; faint ones are easier a few kilometres out.
A noticeably darker area starts about 5 km to the west. Open in OpenStreetMap
Estimate from NASA VIIRS night-light data (sky-glow model within 50 km). Check access and private land before you go.
Hills and mountains
The horizon towards the north is open (terrain below 2.9°), so low aurora is not blocked.
From elevation data (AWS Terrain Tiles) along seven lines of sight up to 30 km.
Best months to see the aurora in Senja
Share of nights 2005–2025 that were dark, active enough here and mostly clear.
September has been the best month (27% of nights), followed by October (20%).
| Month | Good nights | Clear nights | Darkness | Low / high |
|---|---|---|---|---|
| September | 27% | 27% | 5.6 h | 4° / 9°C |
| October | 20% | 20% | 10.4 h | -1° / 3°C |
| November | 19% | 19% | 13.9 h | -6° / -2°C |
| December | 18% | 18% | 15.6 h | -9° / -4°C |
| January | 20% | 20% | 14.6 h | -11° / -6°C |
| February | 18% | 18% | 11.5 h | -11° / -5°C |
| March | 15% | 15% | 7.8 h | -9° / -3°C |
| April | 7% | 20% | 1.1 h | -5° / 0°C |
Darkness through the year
- No full darkness (Sun 12° below the horizon) from 12 April to 30 August — the sky stays too bright for most auroras.
- Midnight sun from 21 May to 22 July.
- Polar night from 2 December to 10 January: the sun stays below the horizon, giving the longest viewing windows.
- Next new moon 9 November, next full moon 26 October. The darkest skies are in the week around new moon.
Aurora nights in Senja since 1995
Nights when Kp reached 4.7 or more while it was dark here.
Most recent strong nights
- 10 October 2026 · Kp 7.0
- 4 October 2026 · Kp 5.7
- 3 April 2026 · Kp 5.7
- 22 March 2026 · Kp 6.7
- 20 March 2026 · Kp 7.0
- 13 March 2026 · Kp 6.0
- 3 March 2026 · Kp 5.0
- 22 February 2026 · Kp 5.3
Where to watch near Senja
-
Bergsbotn viewpoint
A Scenic Route viewing platform above Bergsfjorden, widely photographed with the aurora overhead. · about 50 km · Open in OpenStreetMap
-
Tungeneset
A Scenic Route rest area with a boardwalk onto the rocks, facing the jagged Okshornan peaks and the open sea. · about 62 km · Open in OpenStreetMap
-
Ersfjordstranda
A Scenic Route rest area on a white-sand beach at the head of Ersfjorden, with parking and toilets. · about 65 km · Open in OpenStreetMap
-
Mefjordvær
A small fishing village at the end of a Scenic Route detour, facing north over the sea. · about 71 km · Open in OpenStreetMap
-
Hamn i Senja
A remote harbour hamlet on the outer coast with very little artificial light. · about 51 km · Open in OpenStreetMap
Local knowledge
- Senja is Norway's second-largest island (excluding Svalbard). Its dramatic outer coast is well away from big-city light, and Visit Norway suggests it as a winter alternative to Tromsø.
- Finnsnes is the gateway: the Gisund Bridge links it to the island, Hurtigruten calls daily, and Bardufoss Airport serves the area.
- Most aurora spots line the 102 km National Scenic Route Senja (Botnhamn–Gryllefjord) on the exposed west coast, about an hour's drive from Finnsnes.
- The east side, around Finnsnes, is less windy with colder winters, while the west coast is wetter and stormier, so check the forecast on both sides.
- The Botnhamn–Brensholmen ferry links Senja with Tromsø.
Outer-coast roads cross exposed passes and tunnels and can close in storms; check the Norwegian Public Roads Administration's traffic information (phone +47 815 48 991) before driving.
Park only in marked rest areas, never on the narrow road shoulders.
Practical information
- Nearest airport
- Bardufoss Airport (BDU) · 29 km
Tromsø Airport (TOS) · 62 km - Typical low / high in September
- 4° / 9°C
- What to wear
- Cool nights: layers, a windproof jacket, hat and gloves for standing still outside. Full clothing guide
- Emergency number
- 112 (police), 113 (ambulance), 110 (fire)
- Winter driving
- Winter tyres need at least 3 mm of tread from 1 November to the first Sunday after Easter Monday (16 October to 30 April in Nordland, Troms and Finnmark). Studded tyres are allowed in the same periods and outside them when conditions require. Road conditions are on Statens vegvesen's traffic information service (vegvesen.no/trafikk). Road conditions
- Access to land
- Allemannsretten gives free access to uncultivated land (utmark) such as forest, mountain and shoreline; cultivated land and yards (innmark) need the owner's consent. Overnight stays, including tents, motorhomes and vans, must be more than 150 m from an inhabited house or cabin, and you may stay at most two nights in one spot without permission.
- Official space-weather service
- Norwegian Centre for Space Weather (NOSWE), Tromsø Geophysical Observatory, UiT
- Weather service
- Norwegian Meteorological Institute (Yr)
Questions and answers
What Kp do you need to see the aurora in Senja?
Senja sits right under the auroral oval: on clear, dark nights the aurora is often overhead, even when activity is quiet. Clouds matter far more than the Kp number here.
Which way should I look for the aurora in Senja?
Around Senja the aurora is often right overhead. Start by facing north, but look up and all around — in strong storms it can fill the whole sky and even appear behind you.
What is the best month to see the aurora in Senja?
Over 2005–2025, September gave the best odds in Senja (27% of nights dark, active enough and mostly clear), followed by October (20%).
When is the aurora season in Senja?
From 12 April to 30 August the sky in Senja never gets dark enough. Outside that period the aurora can be seen whenever activity and clouds allow.
Is there much light pollution in Senja?
Some sky glow from nearby lights. Moderate displays are fine; faint ones are easier a few kilometres out. A noticeably darker area starts about 5 km to the west.
When was the aurora last possible in Senja?
Activity last reached storm level (Kp 5 or more) during darkness in Senja on 10 October 2026 (Kp 7.0) — 742 such nights since 1995. Here the aurora also appears on many quieter nights.
Also covered by this forecast
Villages and districts around Senja share its forecast: within a few kilometres the sky, the Kp needed and the best direction are the same.
- Haugland 1 km
- Innvoll 2 km
- Myra 2 km
- Silsand 2 km
- Skogen 3 km
- Olsborg 3 km
- Laukhella 3 km
- Laneset 3 km
- Vollen 3 km
- Vassjord 3 km
- Vika 4 km
- Vågan 4 km
- Trollvika 4 km
- Finnfjord 4 km
- Krokstad 4 km
- Heggen 4 km
- Vuodnabatta 4 km
- Finnjorda 4 km
- Vasshauglia 5 km
- Vasshaug 5 km
- Storvik 5 km
- Myrhaug 5 km
- Klauva 5 km
- Hemmingsjord 5 km
- Kornstad 5 km
- Steinberg 5 km
- Grasmyrbotn 5 km
- Stormoen 6 km
- Kleiva 6 km
- Elvemo 6 km
- Jonagård 6 km
- Grunnreisa 6 km
- Russevåg 7 km
- Grasmyr 7 km
- Sletta 7 km
- Steinmo 8 km
- Solli 8 km
- Leiknes 8 km
- Grønlia 8 km
- Finnfjordeidet 8 km