Below, check out the weather forecast for december for most popular cities in Finland. 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. In Finland, days when the highest temperature is above 25 degrees Celsius are recorded as hot days. Finland weather in December 2021. Current weather in Finland, with temperatures in 30 cities, including high and low temperatures for the country. Temperature. On colder periods, the temperature can fall to as low as -50 °C (-58 °F) in the far north (Lapland). The coldest temperatures in winter are from -45°C to -50°C in Lapland and eastern Finland; from -35°C to -45°C elsewhere; and -25°C to -35°C over islands and coastal regions. The climate is becoming warmer all over the world, including Finland, where in the 2000s summers have often been warmer than usual. The thaw usually occurs in April, at the beginning of the month in southern Finland, and at the end of the month in Lapland. Spring 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. 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. December weather forecast for Helsinki, Finland. December can be very cold though, so travellers should be aware of this and pack accordingly with warm layers, coats, and boots. Hot spells are more frequent and they last longer. December is in the winter in Helsinki and is typically the 4th coldest month of the year. January, February, November and December, with an average maximum … 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). The lowest temperature recorded at any weather station in Finland as of 2010 is -51.5°C (1999). Get the monthly weather forecast for Ivalo, Lapland, Finland, including daily high/low, historical averages, to help you plan ahead. Some increase in summer rainfall is also expected. 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. Weather in Finland in december 2021. Daytime maximum temperatures average around a freezing 0°C (32°F), whilst at night -5°C (24°F) is normal. The percentage indicates the probability of having the weather indicated. 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. 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