YozoraAtlasyo·zo·ra (夜空) n. [Jap.] night sky

Where can you see the northern lights in Estonia?

All 15 places on Yozora Atlas in Estonia see the northern lights on their northern horizon in a storm of Kp 7 or less. Matsalu National Park, Lääne County, needs only Kp 5, a minor storm, which has happened on about 39 nights a year since 1932. At the southern edge, in Tartu, it takes a moderate storm (Kp 6), about 14 nights a year. Those are nights with enough activity, not sightings: clouds and the moon hide many of them.

Kp 5Kp 6Kp level that brings the aurora to the northern horizon
Night-lights map of Estonia with every place colored by the storm strength it needs to see the northern lights
  • Kp 5a minor storm7 places~39 nights a year
  • Kp 6a moderate storm8 places~14 nights a year

Which parts of Estonia see the northern lights most often?

Each county 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
Harju County3Kp 539 nightsLahemaa National ParkBortle 4, Kp 5
Ida-Viru County3Kp 539 nightsAlutaguse National ParkBortle 4, Kp 5
Lääne County1Kp 539 nightsMatsalu National ParkBortle 3, Kp 5
Pärnu County2Kp 614 nightsSoomaa National ParkBortle 4, Kp 6
Tartu County2Kp 614 nightsVooremaa Nature ParkBortle 4, Kp 6
Valga County1Kp 614 nightsOtepää Nature ParkBortle 4, Kp 6
Võru County3Kp 614 nightsKarula National ParkBortle 3, Kp 6

The darkest places in Estonia to watch the northern lights

The towns in Estonia where the northern lights show most often

  1. Matsalu National Park Lääne County · Bortle 3 · Kp 539 nights
  2. Alutaguse National Park Ida-Viru County · Bortle 4 · Kp 539 nights
  3. Lahemaa National Park Harju County · Bortle 4 · Kp 539 nights
  4. Kõrvemaa Nature Park Harju County · Bortle 4 · Kp 539 nights
  5. Karula National Park Võru County · Bortle 3 · Kp 614 nights
  6. Soomaa National Park Pärnu County · Bortle 4 · Kp 614 nights
  7. Haanja Nature Park Võru County · Bortle 4 · Kp 614 nights
  8. Mustoja Nature Park Võru County · Bortle 4 · Kp 614 nights
  9. Otepää Nature Park Valga County · Bortle 4 · Kp 614 nights
  10. Vooremaa Nature Park Tartu County · Bortle 4 · Kp 614 nights
  1. Kohtla-Järve Ida-Viru County · Kp 539 nights
  2. Narva Ida-Viru County · Kp 539 nights
  3. Tallinn Harju County · Kp 539 nights
  4. Pärnu Pärnu County · Kp 614 nights
  5. Tartu Tartu County · Kp 614 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 Estonia?

Averaged over the 15 places, the most nights with a strong enough storm during darkness come in March and September: geomagnetic storms are more frequent around the equinoxes, and the nights are long enough to see them. In June 15 of the 15 places have no night dark enough, the sun staying less than 12° below the horizon. Clouds are not counted here; each place page has its clear nights by month.

1.4Jan2.0Feb3.1Mar2.8Apr1.1May0.0Jun0.3Jul1.9Aug2.8Sep2.7Oct1.8Nov1.2Dec

How the Kp levels and night counts for Estonia 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