nomadseason

December Weather in Kiiminki, Finland

Last updated: August 23, 2025

In December, the average temperature in Kiiminki, Finland hovers around -5°C (23°F). Expect chilly extremes, with minimums plunging to -26°C (-15°F) and a maximum reaching 4°C (39°F). During this time, precipitation totals about 63 mm (2.5 in) over 15 days, and with an average humidity of an astonishing 99%, the air is bound to feel frosty and damp.

December Temperature in Kiiminki

In December in Kiiminki, the average temperature is -5°C (23°F), with maximums reaching 4°C (39°F) and minimums dropping as low as -26°C (-15°F). Travelers should be prepared for cold weather and dress warmly when visiting during this time.

December Weather in Kiiminki: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Kiiminki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kiiminki, December typically has an average temperature of -5°C (23°F), with highs reaching up to 4°C (39°F) and lows dropping to around -26°C (-15°F).
JanFebMarAprMayJunJulAugSepOctNovDec181624334557635748393023
Data source: Temperature data for Kiiminki generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Kiiminki

In Kiiminki in December, the precipitation amount is 63 mm (2.5 in) over a period of 15 days.

December Precipitation Trends in Kiiminki

The chart displays monthly precipitation patterns in Kiiminki, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Kiiminki, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec454346415166779576866763
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Kiiminki

In Kiiminki in December humidity is 99%. With an average temperature of -5°C (23°F), this humidity feels like an icy veil clinging to your skin, making every breath feel sharp and heavy, a stark reminder that even in the cold, moisture hangs in the air, creating an uncomfortable chill that can dampen any travel adventure.

December Average Humidity in Kiiminki

This chart illustrates the average monthly humidity levels in Kiiminki, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Kiiminki is approximately 99%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec100%98%95%87%81%77%79%84%90%95%95%99%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kiiminki

In Kiiminki in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Kiiminki.

Maximum UV Index Levels in Kiiminki for December

The chart shows the monthly maximum UV Index (UVI) for Kiiminki in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Kiiminki typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112346643211
Data source: Kiiminki December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Kiiminki Compares to Other Months

Weather in Kiiminki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kiiminki, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kiiminki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)45 mm (1.8 inches)100%low
February Weather-9°C (17°F)42 mm (1.7 inches)98%low
March Weather-4°C (25°F)46 mm (1.8 inches)95%low
April Weather1°C (34°F)41 mm (1.6 inches)87%moderate
May Weather7°C (45°F)51 mm (2.0 inches)81%moderate
June Weather14°C (58°F)66 mm (2.6 inches)77%high
July Weather17°C (63°F)77 mm (3.0 inches)79%high
August Weather14°C (58°F)95 mm (3.7 inches)84%moderate
September Weather9°C (49°F)76 mm (3.0 inches)90%moderate
October Weather4°C (39°F)86 mm (3.4 inches)95%low
November Weather-1°C (30°F)67 mm (2.6 inches)95%low
December Weather-5°C (23°F)63 mm (2.5 inches)99%low

Compare Kiiminki's Climate with Cities Worldwide