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December Weather in Karijoki, Finland

Last updated: August 23, 2025

In December, the average temperature in Karijoki, Finland hovers around -2°C (29°F). Expect chilly days with minimums plunging to -24°C (-11°F) and a few warmer moments reaching up to 6°C (42°F). With an average precipitation of 62 mm (2.5 in) spread over 13 days, be prepared for damp conditions and a high average humidity of 93%. Stay warm and dry!

December Temperature in Karijoki

In December in Karijoki, the average temperature is -2°C (29°F), with maximums reaching up to 6°C (42°F) and minimums dropping as low as -24°C (-11°F). It’s advisable to bundle up and be prepared for cold weather if you plan on traveling during this time.

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

The chart illustrates December temperature patterns in Karijoki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karijoki, December typically has an average temperature of -2°C (29°F), with highs reaching up to 6°C (42°F) and lows dropping to around -24°C (-11°F).
JanFebMarAprMayJunJulAugSepOctNovDec252329384860635951423528
Data source: Temperature data for Karijoki generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Karijoki

In Karijoki in December, the total precipitation amount is 62 mm (2.5 in) spread over the course of 13 days.

December Precipitation Trends in Karijoki

The chart displays monthly precipitation patterns in Karijoki, 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 Karijoki, December typically receives around 62 mm (2.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec4146464343597810778796462
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Karijoki

In Karijoki in December humidity is 93%. With an average temperature of -2°C (29°F), this humidity feels like a dense, frosty blanket that clings to you, making the cold seep into your bones and transforming outdoor activities into a chilly challenge.

December Average Humidity in Karijoki

This chart illustrates the average monthly humidity levels in Karijoki, 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 Karijoki is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%85%77%75%80%82%88%92%92%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Karijoki

In Karijoki 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 Karijoki.

Maximum UV Index Levels in Karijoki for December

The chart shows the monthly maximum UV Index (UVI) for Karijoki 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 Karijoki typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456653211
Data source: Karijoki 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 Karijoki Compares to Other Months

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

This table compares monthly weather conditions in Karijoki, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)41 mm (1.6 inches)95%low
February Weather-5°C (24°F)46 mm (1.8 inches)93%low
March Weather-2°C (29°F)46 mm (1.8 inches)91%moderate
April Weather3°C (38°F)43 mm (1.7 inches)85%moderate
May Weather9°C (49°F)43 mm (1.7 inches)77%moderate
June Weather15°C (60°F)58 mm (2.3 inches)74%high
July Weather17°C (63°F)78 mm (3.1 inches)80%high
August Weather15°C (60°F)107 mm (4.2 inches)82%moderate
September Weather11°C (51°F)78 mm (3.1 inches)88%moderate
October Weather6°C (42°F)79 mm (3.1 inches)92%low
November Weather2°C (35°F)64 mm (2.5 inches)92%low
December Weather-2°C (29°F)62 mm (2.5 inches)93%low

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