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December Weather in Korpo, Finland

Last updated: August 23, 2025

In December, the average temperature in Korpo, Finland hovers around 2°C (36°F), with a minimum dropping as low as -11°C (12°F), and a potential maximum reaching 7°C (45°F). Travelers should prepare for wet conditions, as the region receives about 91 mm (3.6 in) of precipitation spread across 18 days. With an average humidity of 89%, the air feels quite moist, making it essential to bundle up and stay dry!

December Temperature in Korpo

In December in Korpo, the average temperature is 2°C (36°F). The maximum can reach 7°C (45°F), while the minimum can dip as low as -11°C (12°F). Be sure to pack warm clothing for your trip, as the cold weather can be quite biting.

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

The chart illustrates December temperature patterns in Korpo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Korpo, December typically has an average temperature of 2°C (36°F), with highs reaching up to 7°C (45°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec333032384657636357494336
Data source: Temperature data for Korpo 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 Korpo

In Korpo in December, the precipitation amount is 91 mm (3.6 in) spread over 18 days.

December Precipitation Trends in Korpo

The chart displays monthly precipitation patterns in Korpo, 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 Korpo, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec4941412637334873801097491
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Korpo

In Korpo in December, humidity is 89%. With an average temperature of 2°C (36°F), this humidity feels like an uncomfortable chill that clings to your skin, making outdoor activities feel even colder and less inviting for traveling.

December Average Humidity in Korpo

This chart illustrates the average monthly humidity levels in Korpo, 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 Korpo is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%89%85%77%78%78%79%86%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Korpo

In Korpo 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 Korpo.

Maximum UV Index Levels in Korpo for December

The chart shows the monthly maximum UV Index (UVI) for Korpo 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 Korpo typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Korpo 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 Korpo Compares to Other Months

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

This table compares monthly weather conditions in Korpo, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)49 mm (1.9 inches)92%low
February Weather-1°C (30°F)41 mm (1.6 inches)90%low
March Weather0°C (32°F)41 mm (1.6 inches)89%moderate
April Weather3°C (38°F)26 mm (1.0 inches)85%moderate
May Weather8°C (46°F)37 mm (1.4 inches)77%moderate
June Weather14°C (58°F)33 mm (1.3 inches)78%high
July Weather17°C (63°F)48 mm (1.9 inches)78%high
August Weather17°C (63°F)73 mm (2.9 inches)79%moderate
September Weather14°C (57°F)80 mm (3.2 inches)86%moderate
October Weather9°C (49°F)108 mm (4.3 inches)90%low
November Weather6°C (43°F)74 mm (2.9 inches)91%low
December Weather2°C (36°F)91 mm (3.6 inches)89%low

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