Winter usually begins in mid-October in Lapland and during November in the rest of Finland. Winter is the longest season, lasting for about 100 days in southwestern Finland and 200 days in Lapland with the mean temperature below 0°C.
In Lapland you can experience twilight or the Polar Night - a time when the sun doesn't rise above the horizon. In the most northern corners of Lapland, this twilight period can last for up to 51 days. The twilight time is a rather dark time, but when the moon shines you can still see where you are going! The Northern Lights also brighten up the wintry nature of Lapland.
| Permanent snow falls on open ground about two weeks after winter begins. The snow cover is deepest around mid-March, with an average of 60 to 90 cm of snow in eastern and northern Finland and 20 to 30 cm in southwestern Finland. The lakes freeze over in late November and early December. Source Finnish Meteorological Institute . |