Northern Lights in Luxembourg: Where and When to See Them

Where the aurora is easiest to see

Place	Region	Kp needed	Kp for photos	Magnetic latitude
Diekirch	Canton of Diekirch	8.3	6.7	45.6°
Grevenmacher	Canton of Grevenmacher	8.3	6.7	45.4°
Wiltz	Canton of Wiltz	8.3	6.7	45.7°
Mersch	Canton of Mersch	8.3	6.7	45.5°
Luxembourg	Canton of Luxembourg	8.7	7	45.3°
Esch-sur-Alzette	Canton of Esch-sur-Alzette	8.7	7	45.2°

Largest cities

Place	Population	Kp needed
Luxembourg	76,684	8.7
Esch-sur-Alzette	36,625	8.7
Diekirch	7,295	8.3
Grevenmacher	5,092	8.3
Wiltz	4,816	8.3
Mersch	3,464	8.3

Storm watch: can you see the northern lights from Luxembourg?

Rarely, but yes. In strong storms (about Kp 6.7 or more) the red upper layer of the aurora, 300–400 km up, rises above the northern horizon of Luxembourg. Phone and camera sensors pick it up far more easily than the eye.

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Place	Kp for photos	Kp for the eye	Photo nights since 1995	Last time
Diekirch	6.7	8.3	104	Oct 2026
Grevenmacher	6.7	8.3	104	Oct 2026
Wiltz	6.7	8.3	103	Oct 2026
Mersch	6.7	8.3	104	Oct 2026
Luxembourg	7	8.7	75	Oct 2026
Esch-sur-Alzette	7	8.7	75	Oct 2026

When it was last seen from Luxembourg

Nights with enough activity for photos from Diekirch during darkness (Kp 6.7 or more):

10 October 2026 · Kp 7.0
22 March 2026 · Kp 6.7
20 March 2026 · Kp 7.0
20 January 2026 · Kp 7.7
19 January 2026 · Kp 8.7
3 December 2025 · Kp 6.7
12 November 2025 · Kp 7.3
11 November 2025 · Kp 8.7
5 November 2025 · Kp 6.7
1 October 2025 · Kp 6.7

How to catch it from Luxembourg

Watch the forecast: you need about Kp 6.7 or more — a strong to severe storm. These arrive a day or two after a big eruption on the Sun, so there is usually some warning.
Get away from city lights and find an open view to the north: a coast, a hill or a field. The glow sits low over the horizon.
Use your phone's night mode or a camera on a tripod (3–15 s). Check the photo: a red or pink sky to the north is the aurora.
The best hours are usually 22:00–02:00 local time, but in big storms it can start right after dusk.

Kp 0–2 Quiet Only under the auroral oval: northern Norway, Swedish and Finnish Lapland, Iceland, Alaska, northern Canada.
Kp 3 Unsettled 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) camera in Diekirch Most of the UK, the Netherlands, Germany, Poland, Czechia; red glow in photos from France and the northern Alps.
Kp 8 Severe storm (G4) eye in Diekirch 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).

Live sightings

Where visitors are reporting the aurora right now. A place climbs with every report and drops again as the reports age.

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