Early Sunday morning brought the first frost to many parts of the country, says the Finnish Meteorological Institute (FMI). The coldest was in Eastern Lapland in Salla, where mercury fell to -4.7 degrees.
Since August, nights below zero have been recorded in the northern and central parts of the country, but now they have reached almost the southern coast. For example, in Vihti, Uusimaa, about 50 km from Helsinki, the lowest night temperature was -1.9 degrees. In Lappeenranta, South Karelia, it was measured at -2.3 at the Konnunsuo weather station, near the Russian border.
However, the northern air flow gives way to warmer air, which will move to Finland from the west this week.
Increasing cloud cover is expected on Sunday, but the southern and central parts of the country must remain dry, although occasional showers are possible. In the north-northwest, rain moves elsewhere in northern Lapland. The central and southern parts of Lapland mostly dry out.
Daytime temperatures vary between 10-14 degrees in the southern and central parts of the country and between 7-12 degrees in Lapland.
Warm week ahead
Milder conditions return early on Monday, when warm air flows to Finland from the west. The lowest temperature of the night is about 6-8 degrees on the south coast and rises on Monday around 16-17, slightly colder towards the east. The temperature will remain single-digit in northern Lapland, and the chance of rain is until Wednesday.
Daytime temperatures will rise again, as the warm air mass is forecast to remain above Finland next week. At least in the south, the temperature should be in middle school, even approaching 20 degrees by Saturday.
Source: The Nordic Page