- 5 °C100 percent cloud cover
- 4 °C4 percent cloud cover
- 4 °C6 percent cloud cover
Northern Lights Forecast for Alta
Alta, Norway
69°58′8.0″N ⋅ 23°16′17.8″E
Aurora data last updated at
Current local time:
Can you see the Northern Lights in Alta tonight?
Aurora activity is expected to be moderate between 22:00 and 05:00 in Alta tonight. Sky will be dark from 18:57 to 05:29 local time. Cloud cover around that time looks partly cloudy at 0% to 100%. You might see the aurora if the sky is not too cloudy at the right time.
Can you see the Northern Lights in Alta tonight?
Aurora activity is expected to be moderate between 22:00 and 05:00 in Alta tonight. Sky will be dark from 18:57 to 05:29 local time. Cloud cover around that time looks partly cloudy at 0% to 100%. You might see the aurora if the sky is not too cloudy at the right time.
Aurora Forecast for Alta
Hourly aurora forecast for Alta
| Local time | Aurora activity |
|---|---|
| Low Activity | |
| Low Activity | |
| Low Activity | |
| Moderate Activity | |
| Moderate Activity | |
| Moderate Activity | |
| Low Activity | |
| No activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| Moderate Activity | |
| Low Activity | |
| Low Activity | |
| Low Activity | |
| No activity |
3-Night Weather Forecast for Alta
- 5 °C83 percent cloud cover
- 5 °C58 percent cloud cover
- 4 °C81 percent cloud cover
- 3 °C68 percent cloud cover
- 0 °C54 percent cloud cover
Sun & Moon
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Long-Term Aurora Forecast for Alta
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
Thursday, October 15, 2026. Today. Moderate aurora activity. Aurora score 5 out of 10. Waxing crescent, 22% illumination | Friday, October 16, 2026. Moderate aurora activity. Aurora score 4 out of 10. Waxing crescent, 30% illumination | Saturday, October 17, 2026. Low aurora activity. Aurora score 3 out of 10. First quarter, 39% illumination | Sunday, October 18, 2026. Low aurora activity. Aurora score 3 out of 10. First quarter, 48% illumination | |||
Monday, October 19, 2026. Low aurora activity. Aurora score 3 out of 10. First quarter, 58% illumination | Tuesday, October 20, 2026. Low aurora activity. Aurora score 3 out of 10. First quarter, 67% illumination | Wednesday, October 21, 2026. Moderate aurora activity. Aurora score 6 out of 10. Waxing gibbous, 76% illumination | Thursday, October 22, 2026. High aurora activity. Aurora score 7 out of 10. Waxing gibbous, 84% illumination | Friday, October 23, 2026. Moderate aurora activity. Aurora score 6 out of 10. Waxing gibbous, 91% illumination | Saturday, October 24, 2026. Moderate aurora activity. Aurora score 5 out of 10. Full moon, 96% illumination | Sunday, October 25, 2026. Low aurora activity. Aurora score 3 out of 10. Full moon, 99% illumination |
Monday, October 26, 2026. Low aurora activity. Aurora score 3 out of 10. Full moon, 100% illumination | Tuesday, October 27, 2026. Low aurora activity. Aurora score 3 out of 10. Full moon, 97% illumination | Wednesday, October 28, 2026. Low aurora activity. Aurora score 3 out of 10. Waning gibbous, 92% illumination | Thursday, October 29, 2026. Low aurora activity. Aurora score 3 out of 10. Waning gibbous, 85% illumination | Friday, October 30, 2026. Low aurora activity. Aurora score 3 out of 10. Waning gibbous, 76% illumination | Saturday, October 31, 2026. High aurora activity. Aurora score 7 out of 10. Last quarter, 65% illumination | Sunday, November 1, 2026. High aurora activity. Aurora score 7 out of 10. Last quarter, 54% illumination |
Monday, November 2, 2026. Moderate aurora activity. Aurora score 5 out of 10. Last quarter, 43% illumination | Tuesday, November 3, 2026. Low aurora activity. Aurora score 3 out of 10. Last quarter, 32% illumination | Wednesday, November 4, 2026. Low aurora activity. Aurora score 3 out of 10. Waning crescent, 23% illumination | Thursday, November 5, 2026. Low aurora activity. Aurora score 3 out of 10. Waning crescent, 14% illumination | Friday, November 6, 2026. Moderate aurora activity. Aurora score 5 out of 10. Waning crescent, 8% illumination | Saturday, November 7, 2026. Moderate aurora activity. Aurora score 5 out of 10. New moon, 3% illumination | Sunday, November 8, 2026. Moderate aurora activity. Aurora score 6 out of 10. New moon, 1% illumination |
Monday, November 9, 2026. High aurora activity. Aurora score 7 out of 10. New moon, 0% illumination | Tuesday, November 10, 2026. Moderate aurora activity. Aurora score 6 out of 10. New moon, 2% illumination | Wednesday, November 11, 2026. Moderate aurora activity. Aurora score 4 out of 10. Waxing crescent, 5% illumination |
Northern Lights in Alta
Alta is a town of about 16,000 people at the head of the Altafjord in western Finnmark, at 70°N. It calls itself Nordlysbyen, the Northern Lights City, and scientists have studied the aurora around this fjord since the 1830s. It is dry for the coast, with about 440 mm of precipitation a year, well under half of what falls on Tromsø. The airport is about 4 km east of the center, with flights from Oslo and Tromsø.
The Recherche expedition at Bossekop
In 1838 the French Recherche expedition rented rooms at the Bossekop farm, now part of Alta, and spent the winter recording the aurora. They chose the Altafjord over Hammerfest for its clearer skies and less fog, and Louis Bevalet’s drawings of the lights made Bossekop known across Europe. After they left, the scientific society at the English-run copper works in Kåfjord kept up the observations.
Haldde, the observatory mountain above Kåfjord
In 1899 Kristian Birkeland built the first permanent northern lights observatory on the summit of Haldde, about 900 m up. Research moved to Tromsø in 1926, German forces burned the buildings in 1944, and the station has since been restored. The old observatory building serves as an unstaffed DNT cabin with six beds, open all year, with a bust of Birkeland at the top.
The 9 km marked trail starts in Kåfjord, 18 km west of Alta on the E6, and Visit Alta lists it as a summer and autumn hike of about six hours. In Sámi the name means sacred mountain.
Komsatoppen and the plateau to the south
For a view over the town and the Altafjord, Komsatoppen is a short hike to a top about 200 m up, at the edge of town. For darker sky, local aurora watchers go either out to the coast or south onto Finnmarksvidda, the open plateau the E45 climbs onto on its way to Kautokeino.
Alta Museum and the Hjemmeluft rock carvings
About 6,000 rock carvings up to 7,000 years old line the Altafjord, on the UNESCO World Heritage list since 1985. The main site, at Hjemmeluft about 5 km west of the center, has more than 3,000 figures on 85 panels. From October or November until April or May they are under snow, and the outdoor area closes for winter. Alta Museum, at the site, has exhibitions on aurora research and Sámi culture.
The Northern Lights Cathedral
The parish church in the center of Alta, consecrated in 2013, was designed by Schmidt Hammer Lassen with Link Arkitektur. Its walls are clad in titanium sheets around a spiral that rises to the bell tower, and the interior art is by Peter Brandes.
Finnmarksløpet in March
Each March the Finnmarksløpet sled dog race starts and finishes in Alta. The open class runs about 1,200 km across Finnmark to Kirkenes and back, and the limited class about 600 km, mostly on Finnmarksvidda.
FAQ
Why is Alta called the Northern Lights City?
Alta calls itself Nordlysbyen, and the history backs it up. The French Recherche expedition spent the winter of 1838 to 1839 at Bossekop, now part of Alta, choosing the Altafjord over Hammerfest for its clearer skies. In 1899 Kristian Birkeland built the first permanent northern lights observatory on Haldde, the mountain above Kåfjord.
The name is built into the town center too, in the Northern Lights Cathedral, a titanium-clad church consecrated in 2013.
Can you visit the Haldde northern lights observatory?
Yes, on foot. A marked trail and old cart road climbs 9 km from Kåfjord, 18 km west of Alta, to the summit at about 900 m. Visit Alta lists it as a summer and autumn hike of about six hours.
The restored observatory building is an unstaffed DNT cabin with six beds, open all year, and a bust of Kristian Birkeland stands at the top. His observatory ran here from 1899 until the research moved to Tromsø in 1926.
Can you see the Alta rock carvings in winter?
Not outdoors. The carvings at Hjemmeluft are covered by snow from October or November until April or May, and the outdoor rock art area closes for the winter.
Alta Museum, at the same site about 5 km west of the town center, is the place to go in winter. It stays open in winter, and its exhibitions cover the rock art, Sámi culture and the history of aurora research.
When is the Finnmarksløpet sled dog race in Alta?
In March. The race starts and finishes in the center of Alta. The open class covers about 1,200 km across Finnmark to Kirkenes and back, and the limited class about 600 km, mostly on the Finnmarksvidda plateau. It has been run since 1981.
March nights in Alta are still dark, so the race week is also aurora season.
What Kp index do I need to see the northern lights in Alta?
In Alta, even quiet geomagnetic conditions can be enough for aurora overhead.
This is based on magnetic latitude, and Kp index is a global geomagnetic index, so treat it as a rule of thumb, not a location-specific guarantee.
Tonight, the NOAA Kp index forecast is 1.0 to 2.7. You should have a good chance of seeing the aurora if the sky is clear.