YozoraAtlas

Where can you see the northern lights in France?

2 of the 90 places on Yozora Atlas in France see the northern lights on their northern horizon in a storm of Kp 7 or less. Dunkirk, Hauts-de-France, needs only Kp 7, a strong storm, which has happened on about 5 nights a year since 1932. At the southern edge, in Dunkirk, it takes a strong storm (Kp 7), about 5 nights a year. Those are nights with enough activity, not sightings: clouds and the moon hide many of them.

Kp 7Kp level that brings the aurora to the northern horizon; faint dots need more than Kp 7
Night-lights map of France with every place colored by the storm strength it needs to see the northern lights
  • Kp 7a strong storm2 places~5 nights a year

Which parts of France see the northern lights most often?

Each region with the Kp range of its places, the nights a year its best place reaches that level, and the darkest place to watch from.

State or regionPlacesKp neededNights a yearDarkest place to watch from
Hauts-de-France2Kp 75 nightsnone at Bortle 4 or darker

The darkest places in France to watch the northern lights

The towns in France where the northern lights show most often

    1. Dunkirk Hauts-de-France · Kp 75 nights
    2. Calais Hauts-de-France · Kp 75 nights

    Nights a year since 1932 with the Kp level the place needs, between 9 pm and 3 am. These are nights with enough activity, not sightings: clouds and the moon hide many of them, and away from the far north a display is often a faint glow low in the north that a phone camera shows better than the eye. From inside a town only bright displays show through the glow: each town page names the closest dark spot without the town in its northern sky.

    When are the northern lights most likely in France?

    Averaged over the 2 places, the most nights with a strong enough storm during darkness come in March and April: geomagnetic storms are more frequent around the equinoxes, and the nights are long enough to see them. Clouds are not counted here; each place page has its clear nights by month.

    0.2Jan0.3Feb0.7Mar0.7Apr0.6May0.3Jun0.3Jul0.4Aug0.6Sep0.5Oct0.3Nov0.1Dec

    How the Kp levels and night counts for France are worked out

    The aurora forms in a ring around the magnetic north pole, and the stronger a geomagnetic storm, the further south it reaches. Storm strength is measured by the Kp index, from 0 (quiet) to 9 (extreme). For each place the Kp level comes from its magnetic latitude, using the rule NOAA uses: the edge of the aurora sits at 66.5° magnetic latitude at Kp 0 and about 2° further south per step. It can be off by one level, and a phone camera often shows a display the eye barely sees. How often that level was reached comes from the Kp record of GFZ Potsdam, 1932 to 2025. None of this is a forecast: for tonight, see NOAA’s 30-minute aurora forecast. How it works