Trøndelag, NorwayMagnetic latitude 60.9°Population 5,41812 m above sea level
Northern lights in Hommelvik
From Hommelvik the aurora is visible on most active nights — first low to the north, from about Kp 0.7.
Right now
It is still light here. Darkness starts at 19:37.
Updates every minute while this page is open.
Tonight in one minute
Not tonight
- Solar activity Strong enough: Kp 2.7 expected, 0.7 needed here.
- Sky Overcast (88% cloud).
- Darkness Dark from 19:37 to 06:28.
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 Good chance · Kp 1.7
- 27-day trend Mon 19 2 Good chance · Kp 2
- Tue 20 3 Good chance · Kp 3
- Wed 21 4 Possible · 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
Monday 19 October — Good chance · Kp 1.7 · best around 00:30 · Forecast cloud: 3%. · Reliability: medium
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 17:24 local time
Possible
Best around 05:00. Forecast max Kp 2.7 (this place needs 0.7), average cloud 88%.
- Dark enough
- 19:37 – 06:28
- Sunset
- 17:55 · sunrise 08:10
- Moon
- 31% · ↑ 18:04 · ↓ 19:07
- Kp neededKp index: a 0–9 measure of geomagnetic activity. The higher it is, the further from the poles the aurora reaches.
- Kp 0.7
- Kp for photos
- In photos: from Kp 0 (a red glow low in the north).
- Look towards
- north (356°)
Score = activity (NOAA Kp and OVATION) × clear sky (MET Norway) × darkness × moonlight. Methodology
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What you would see from Hommelvik
Facing north. Bands show where the aurora sits at two activity levels.
| Kp | What you see | Lower edge | Ray tops | Distance to the aurora |
|---|---|---|---|---|
| 1 | Visible to the north | 13° | 24° | 400 km |
| 2 | Visible to the north | 30° | 47° | 178 km |
| 3 | Overhead and all around | – | – | – |
| 4 | Overhead and all around | – | – | – |
| 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 Hommelvik camera in Hommelvik 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
Suburban sky. Noticeable sky glow. Bright displays are visible, but driving out of town makes a clear difference.
A noticeably darker area starts about 5 km to the south-south-east. 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 terrain rises to about 4° above the horizon towards the north. That hides low aurora: here you need about Kp 0.7 instead of Kp 0.7. A hilltop, shore or open field with a clear view to the north helps.
From elevation data (AWS Terrain Tiles) along seven lines of sight up to 30 km.
Best months to see the aurora in Hommelvik
Share of nights 2005–2025 that were dark, active enough here and mostly clear.
September has been the best month (30% of nights), followed by April (21%).
| Month | Good nights | Clear nights | Darkness | Low / high |
|---|---|---|---|---|
| September | 30% | 32% | 7.1 h | 5° / 11°C |
| October | 20% | 20% | 10.5 h | -1° / 4°C |
| November | 19% | 21% | 13.3 h | -6° / -2°C |
| December | 18% | 20% | 14.6 h | -9° / -4°C |
| January | 16% | 18% | 13.9 h | -10° / -5°C |
| February | 14% | 16% | 11.5 h | -10° / -5°C |
| March | 16% | 16% | 8.8 h | -8° / -2°C |
| April | 21% | 26% | 4.0 h | -5° / 1°C |
Darkness through the year
- No full darkness (Sun 12° below the horizon) from 28 April to 14 August — the sky stays too bright for most auroras.
- Next new moon 9 November, next full moon 26 October. The darkest skies are in the week around new moon.
Aurora nights in Hommelvik 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
- 2 April 2026 · Kp 5.0
- 22 March 2026 · Kp 6.7
- 20 March 2026 · Kp 7.0
- 13 March 2026 · Kp 6.0
- 3 March 2026 · Kp 5.0
Practical information
- Nearest airport
- Trondheim Airport, Værnes (TRD) · 8 km
- Typical low / high in September
- 5° / 11°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 Hommelvik?
From Hommelvik the aurora is visible on most active nights — first low to the north, from about Kp 0.7.
Which way should I look for the aurora in Hommelvik?
Face north (about 356° from true north). At Kp 0.7 the lower edge of the aurora sits roughly 13° above the horizon; stronger activity lifts it higher and further across the sky.
What is the best month to see the aurora in Hommelvik?
Over 2005–2025, September gave the best odds in Hommelvik (30% of nights dark, active enough and mostly clear), followed by April (21%).
When is the aurora season in Hommelvik?
From 28 April to 14 August the sky in Hommelvik never gets dark enough. Outside that period the aurora can be seen whenever activity and clouds allow.
Is there much light pollution in Hommelvik?
Noticeable sky glow. Bright displays are visible, but driving out of town makes a clear difference. A noticeably darker area starts about 5 km to the south-south-east.
When was the aurora last possible in Hommelvik?
Activity last reached storm level (Kp 5 or more) during darkness in Hommelvik on 10 October 2026 (Kp 7.0) — 827 such nights since 1995. Here the aurora also appears on many quieter nights.
Also covered by this forecast
Villages and districts around Hommelvik share its forecast: within a few kilometres the sky, the Kp needed and the best direction are the same.
- Muruvik 3 km
- Eggan 5 km
- Bakken 5 km
- Øvre Jervan 9 km
- Venna 10 km
- Dragsten 15 km
- Solem 19 km
- Sesås 19 km
- Grøttem 19 km
- Ballstad 19 km
- Sjøbygda 19 km
- Pundsgrenda 19 km
- Espet 19 km
- Stamnesgrenda 19 km
- Mogrenda 19 km
- Selbustrand 20 km
- Flønes 21 km
- Eidem 22 km
- Bergsneset 22 km
- Nesta 23 km
- Marienborg 23 km
- Kolvik 23 km
- Belle 23 km
- Mebonden 23 km
- Eidemsvik 23 km
- Øvervik 24 km
- Garberg 24 km
- Kjøsnes 24 km
- Selbu 25 km
- Aftræt 25 km
- Labbi 25 km
- Kjøsnesvoll 26 km
- Gullset 26 km
- Evjegjerdet 26 km
- Kolset 27 km
- Kråkstad 29 km
- Hyltbakken 29 km
- Uthus 29 km
- Rollset 32 km