What is the coldest month in Rovaniemi?

January is typically the coldest, averaging around -15°C and occasionally dropping below -30°C on still, clear nights — which are also excellent aurora nights. December is similarly cold and the darkest.

When does it snow in Rovaniemi?

The first snow usually settles in October, with reliable, deep snow cover from November through April. March often has the deepest snow of the season.

What is the mildest month to visit Rovaniemi in winter?

March and early April are the mildest of the aurora season (around -5 to +2°C), with deep snow and long, bright days. September is also mild but before the snow arrives.

Rovaniemi Weather by Month: Temperatures & What to Expect

Rovaniemi's weather changes dramatically through the winter season. Knowing what each month brings — temperature, daylight and snow — helps you plan the right trip. Clear skies matter most for the aurora, which is why guided tours that chase them are so valuable.

September–October (autumn)

Mild (+10°C down to around freezing), long dark nights returning, first snow in October. Strong equinox-boosted aurora and lower prices.

November

Colder (around -5 to -15°C), snow settling, very long nights but more cloud. Good for early-season snow activities.

December–January (deep winter)

Coldest and darkest: -10 to -25°C, sometimes below -30°C on clear nights. December has under 4 hours of daylight (polar night). Longest aurora windows; busiest and priciest around Christmas.

February

Still cold (-10 to -20°C) but daylight returning fast. Excellent snow, strong aurora and slightly quieter than December.

March–April (spring winter)

Milder (-5 to +2°C), the deepest snow of the season and long, bright days. The spring equinox brings spectacular aurora — arguably the best all-round time.

What it means for you

For gentler weather choose September–October or March; for polar-night magic choose December–January. Whatever the month, dress in proper layers (see our packing list) and book a guided aurora hunt that follows clear skies.

Rovaniemi Weather by Month