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December Weather in Keuruu, Finland

Last updated: August 23, 2025

In December, the average temperature in Keuruu, Finland hovers around -3°C (27°F). However, be prepared for temperature fluctuations, as it can dip as low as -22°C (-8°F) or rise to a maximum of 5°C (40°F). With an average humidity of 95%, the air feels quite damp, and you can expect 68 mm (2.7 in) of precipitation spread over about 14 days. Pack accordingly!

December Temperature in Keuruu

In December in Keuruu, the average temperature is -3°C (27°F), with maximums reaching 5°C (40°F) and minimums dropping as low as -22°C (-8°F). Be sure to pack warm clothing if you're planning to travel during this chilly period!

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

The chart illustrates December temperature patterns in Keuruu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keuruu, December typically has an average temperature of -3°C (27°F), with highs reaching up to 5°C (40°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec232128364860635950413426
Data source: Temperature data for Keuruu 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 Keuruu

In Keuruu in December, the precipitation amount is 68 mm (2.7 in) distributed over a period of 14 days.

December Precipitation Trends in Keuruu

The chart displays monthly precipitation patterns in Keuruu, 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 Keuruu, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec464443446056659072786668
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Keuruu

In Keuruu in December, humidity is 95%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that penetrates your clothes, making every breath feel heavy and damp, which can be quite uncomfortable for traveling.

December Average Humidity in Keuruu

This chart illustrates the average monthly humidity levels in Keuruu, 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 Keuruu is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%85%77%74%79%82%89%93%93%95%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Keuruu

In Keuruu 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 Keuruu.

Maximum UV Index Levels in Keuruu for December

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

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

This table compares monthly weather conditions in Keuruu, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)46 mm (1.8 inches)97%low
February Weather-6°C (21°F)44 mm (1.7 inches)95%low
March Weather-2°C (28°F)43 mm (1.7 inches)92%moderate
April Weather2°C (36°F)44 mm (1.7 inches)85%moderate
May Weather9°C (48°F)60 mm (2.4 inches)77%moderate
June Weather16°C (60°F)56 mm (2.2 inches)74%high
July Weather17°C (63°F)65 mm (2.6 inches)79%high
August Weather15°C (59°F)90 mm (3.6 inches)82%moderate
September Weather10°C (50°F)72 mm (2.8 inches)89%moderate
October Weather5°C (41°F)78 mm (3.1 inches)93%low
November Weather1°C (34°F)66 mm (2.6 inches)93%low
December Weather-3°C (27°F)68 mm (2.7 inches)95%low

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