Live aurora forecast
Northern lights in Saariselkä tonight and this season
Aurora probability over Saariselkä right now from NOAA, the Kp index the city needs by geomagnetic latitude, the nights that get dark enough, calculated from the sun, and the 2 guided tours that pass the catalogue filter.
In short
Northern lights in Saariselkä need a Kp index of 1 or more, because the city sits at 65.2° N geomagnetic latitude and NOAA's rule of thumb puts the edge of the auroral oval at about 66° for Kp 0, 2° closer to the equator per Kp level. Fully dark nights in Saariselkä (sun 18° below the horizon) run from 14 September to 29 March. 2 guided tours leave from Saariselkä with at least 4.3 stars and 20 reviews, from 205 USD. The aurora probability over the city right now, from NOAA's OVATION model, is on this page and refreshes every 15 minutes.
Key points
- Kp needed in Saariselkä: 1 or more, from 65.2° N geomagnetic latitude (WMM2025 dipole)
- Fully dark nights in Saariselkä (sun 18° below the horizon) run from 14 September to 29 March.
- Aurora probability over Saariselkä from NOAA OVATION, refreshed every 15 minutes with the fetch time shown
- 2 guided tours pass the filter of 4.3 stars, 20 reviews and an aurora title
- Kp forecast for the next 3 days in 3-hour slots, and the other places in Finland for comparison
On this page
1Aurora over Saariselkä right now
Data: NOAA SWPC, fetched 14:10 UTC. Aurora probability by destination from the NOAA OVATION model, forecast for 9 Oct, 15:10 UTC. Aurora also needs a dark and clear sky. Kp needed: NOAA puts the edge of the auroral oval at about 66° geomagnetic latitude for Kp 0, 2° closer to the equator per Kp level. Geomagnetic latitude from the WMM2025 dipole pole (NOAA NCEI).
2The Kp index Saariselkä needs
Saariselkä lies at 68.4° N, which is 65.2° N geomagnetic latitude on the WMM2025 dipole. NOAA's viewing tips put the edge of the auroral oval at about 66° geomagnetic for Kp 0 and move it about 2° closer to the equator with each Kp level, down to 48° at Kp 9. So the oval reaches Saariselkä from Kp 1, the threshold the cards on this site compare with the Kp measured right now. NOAA also notes that aurora can often be observed hundreds of kilometres equatorward of the oval's edge, so a bright display can show low on the northern horizon one Kp level earlier.
3Kp forecast for the next 3 days
| UTC | Fri 9 Oct | Sat 10 Oct | Sun 11 Oct | Mon 12 Oct |
|---|---|---|---|---|
| 00-03 | 4.00 | 4.67 G1 | 3.00 | |
| 03-06 | 3.67 | 5.67 G2 | ||
| 06-09 | 3.00 | 4.33 | ||
| 09-12 | 3.00 | 3.00 | ||
| 12-15 | 4.67 G1 | 1.67 | 2.67 | |
| 15-18 | 5.00 G1 | 2.33 | 2.33 | |
| 18-21 | 6.00 G2 | 2.67 | 2.00 | |
| 21-00 | 5.67 G2 | 2.67 | 2.67 |
Data: NOAA SWPC. Slots before now are NOAA estimates, the rest are predicted values.
4When the sky over Saariselkä is dark enough
The aurora needs a dark sky as much as it needs Kp, and darkness is a matter of latitude and date. Fully dark nights in Saariselkä (sun 18° below the horizon) run from 14 September to 29 March. From 15 April to 28 August the sky never gets darker than nautical twilight, so only a strong display shows, low on the horizon. The polar night lasts from 6 December to 6 January, 32 days with the sun below the horizon all day, when the aurora can show in the afternoon. The midnight sun lasts from 24 May to 19 July, 57 days. Dates are an own calculation from the sun's declination for the latitude of Saariselkä, with the US Naval Observatory definitions of twilight, and can be a day off at the edges. Clouds and moonlight are the other half of the question: the home page shows the moon phase for each of the next 27 days.
5Why Finland for the northern lights
Finnish Lapland sells the aurora with glass igloos and husky farms. Rovaniemi sits on the Arctic Circle with the airport and the second longest tour list on this site, Levi is a ski resort further north, and Saariselkä is the quietest of the three with the darkest sky. Rovaniemi is just outside the oval's quiet edge, so it needs Kp 2 rather than 1.
6Saariselkä compared with the other places in Finland
The table ranks the 3 places in Finland on this site by the Kp they need. Saariselkä and Levi share the lowest figure, Kp 1.
| Place | Latitude | Geomagnetic | Kp needed | Tours |
|---|---|---|---|---|
| Saariselkä | 68.4° N | 65.2° N | 1 | 2 |
| Levi | 67.8° N | 65.0° N | 1 | 7 |
| Rovaniemi | 66.5° N | 63.6° N | 2 | 39 |
7Northern lights tours in Saariselkä
2 guided tours from Saariselkä pass the catalogue filter (at least 4.3 stars, 20 reviews and the aurora in the title), from 205 USD per person. Prices are starting prices read from the booking catalogue and change with the date. All tours in the country.
| Fact | Value | Source |
|---|---|---|
| Coordinates | 68.4° N, 27.4° E | site destination list |
| Geomagnetic latitude | 65.2° N (WMM2025) | NOAA NCEI, own calculation |
| Kp needed | 1+ | NOAA rule of thumb |
| Fully dark nights | 14 September to 29 March | own calculation (Meeus), USNO definitions |
| Too bright for faint aurora | 15 April to 28 August | own calculation (Meeus), USNO definitions |
| Polar night | 6 December to 6 January, 32 days | own calculation (Meeus), USNO definitions |
| Midnight sun | 24 May to 19 July, 57 days | own calculation (Meeus), USNO definitions |
| Tours that pass the filter | 2, from 205 USD, counted 9 Oct 2026 | booking catalogue |
Source: NOAA NCEI, World Magnetic Model 2025, geomagnetic pole, checked on 9 Oct 2026.
Latest northern lights posts
Frequently asked questions
What Kp index do you need to see the northern lights in Saariselkä?
Kp 1 or more. Saariselkä sits at 65.2° N geomagnetic latitude, and NOAA's rule of thumb puts the edge of the auroral oval there from Kp 1. A brighter display can show low on the northern horizon one level earlier.
When is the best time to see the northern lights in Saariselkä?
Fully dark nights in Saariselkä (sun 18° below the horizon) run from 14 September to 29 March. The darkest skies of the month are the 5 nights around the new moon. The home page shows the moon for each of the next 27 days.
Can you see the northern lights in Saariselkä in summer?
From 15 April to 28 August the sky never gets darker than nautical twilight, so only a strong display shows, low on the horizon.
How many northern lights tours are there in Saariselkä?
2 guided tours from Saariselkä pass the filter of 4.3 stars and 20 reviews, from 205 USD per person, counted from the booking catalogue on 9 Oct 2026.
Is Saariselkä the best place in Finland for the northern lights?
By Kp needed Saariselkä shares the lowest figure in Finland, Kp 1, with Levi. Clouds and light decide the rest.
Why does the Saariselkä aurora probability on this page change?
It comes from NOAA's OVATION model, a forecast for the next 30 to 90 minutes, which this site re-reads at most every 15 minutes. The Kp needed, 1, does not change: it is geography.
Sources (5)
Sources
- NOAA SWPC, tips on viewing the aurora, checked on 9 Oct 2026
- NOAA NCEI, World Magnetic Model 2025, geomagnetic pole, checked on 9 Oct 2026
- NOAA SWPC, OVATION aurora forecast model, checked on 9 Oct 2026
- Viator Partner API, catalogue and operator listings, checked on 9 Oct 2026
- US Naval Observatory, rise, set and twilight definitions, checked on 9 Oct 2026
Written and maintained by the Kp Forecast editorial team. Independent site, not a space weather agency. Data: NOAA SWPC.
Plan
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