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December Weather in Kostomuksha, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Kostomuksha, Russian Federation hovers around -6°C (22°F), with lows plunging to -22°C (-8°F) and occasional highs reaching 3°C (38°F). Expect about 60 mm (2.4 in) of precipitation spread over 16 days, and be prepared for a rather humid atmosphere, with an average humidity level of 101%.

December Temperature in Kostomuksha

In December in Kostomuksha, the average temperature is -6°C (22°F). Maximums can reach 3°C (38°F), while minimums can plummet to as low as -22°C (-8°F). Travelers should be prepared for harsh winter conditions and dress in warm layers.

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

The chart illustrates December temperature patterns in Kostomuksha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostomuksha, December typically has an average temperature of -6°C (22°F), with highs reaching up to 3°C (38°F) and lows dropping to around -22°C (-8°F).
JanFebMarAprMayJunJulAugSepOctNovDec161523334457605647372922
Data source: Temperature data for Kostomuksha 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 Kostomuksha

In Kostomuksha in December, the total precipitation amount is 60 mm (2.4 in) over the course of 16 days.

December Precipitation Trends in Kostomuksha

The chart displays monthly precipitation patterns in Kostomuksha, 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 Kostomuksha, December typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec4437434165718010481846460
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kostomuksha

In Kostomuksha in December humidity is 101%. With an average temperature of -6°C (22°F), this humidity feels like a dense, freezing mist that clings to your skin, making every step outdoors feel like trudging through a heavy, icy blanket, which could deter even the most adventurous traveler.

December Average Humidity in Kostomuksha

This chart illustrates the average monthly humidity levels in Kostomuksha, 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 Kostomuksha is approximately 101%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec101%99%93%88%84%80%83%88%91%96%97%101%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kostomuksha

In Kostomuksha 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 Kostomuksha.

Maximum UV Index Levels in Kostomuksha for December

The chart shows the monthly maximum UV Index (UVI) for Kostomuksha 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 Kostomuksha typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356653211
Data source: Kostomuksha 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 Kostomuksha Compares to Other Months

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

This table compares monthly weather conditions in Kostomuksha, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)44 mm (1.7 inches)101%low
February Weather-9°C (15°F)37 mm (1.5 inches)99%low
March Weather-5°C (23°F)43 mm (1.7 inches)93%low
April Weather1°C (33°F)41 mm (1.6 inches)88%moderate
May Weather7°C (44°F)65 mm (2.5 inches)84%moderate
June Weather14°C (57°F)71 mm (2.8 inches)80%high
July Weather16°C (61°F)80 mm (3.2 inches)82%high
August Weather14°C (57°F)104 mm (4.1 inches)88%moderate
September Weather8°C (47°F)81 mm (3.2 inches)91%moderate
October Weather3°C (38°F)84 mm (3.3 inches)96%low
November Weather-2°C (29°F)64 mm (2.5 inches)97%low
December Weather-6°C (22°F)60 mm (2.4 inches)101%low

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