Get the latest coronavirus (COVID-19) updates for Finland with current travel advice, statistics and online resources.. Below are average maximum temperatures at popular destinations in Finland in December. December weather forecast for Helsinki, Finland. In Finland, days when the highest temperature is above 25 degrees Celsius are recorded as hot days. The percentage indicates the probability of having the weather indicated. January, February, November and December, with an average maximum … The lowest temperature recorded at any weather station in Finland as of 2010 is -51.5°C (1999). As of April 2020, the monthly average temperature in Helsinki, the capital of Finland, was 5 degrees Celsius, and in Northern Finland in Sodankylä -2 degrees Celsius. On colder periods, the temperature can fall to as low as -50 °C (-58 °F) in the far north (Lapland). Finland weather in December 2021. December is in the winter in Helsinki and is typically the 4th coldest month of the year. Some increase in summer rainfall is also expected. Current weather in Finland, with temperatures in 30 cities, including high and low temperatures for the country. Kokemäki in western Finland saw temperatures of 11.2 degrees Celsius, breaking the previous record of 11.1 degrees—which was itself set this December, in Åland. Select a destination to see more weather parameters. Spring December can be very cold though, so travellers should be aware of this and pack accordingly with warm layers, coats, and boots. The lowest temperature recorded in Helsinki is -34.3°C (1987). Below, check out the weather forecast for december for most popular cities in Finland. On other places, like in Koivisto (in the Karelian Isthmus, on the shore of the Gulf of Finland), the temperature in the morning was a numbing -45 degrees below zero, and in Summa before dawn, a -49 Celsius temperature was reported, while in Taipale the temperature around noon was -39 Celsius. Get the monthly weather forecast for Ivalo, Lapland, Finland, including daily high/low, historical averages, to help you plan ahead. Finland has seen higher temperatures this December than ever before, with a new record broken on Sunday. The climate is becoming warmer all over the world, including Finland, where in the 2000s summers have often been warmer than usual. Temperature. The average temperature in Lapland in December is-6°C though these vary during the month; highs reach -3°C but lows can fall to-9°C, especially on evenings. The thaw usually occurs in April, at the beginning of the month in southern Finland, and at the end of the month in Lapland. The first month of the winter, December, is also a wintry month, with average temperature ranging between max 0.5°C (32.9°F) and min -4.5°C (23.9°F). Hot spells are more frequent and they last longer. Weather in Finland in december 2021. 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