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December Weather in Ostrov, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Ostrov, Russian Federation hovers around -2°C (29°F). Expect chilly conditions, with minimums plummeting to -24°C (-10°F) and maximums peaking at 9°C (48°F). The month also brings 58 mm (2.3 in) of precipitation spread over 15 days, contributing to an average humidity level of 94%. Prepare for a cold and damp experience!

December Temperature in Ostrov

In December in Ostrov, the average temperature is -2°C (29°F), with maximums reaching up to 9°C (48°F) and minimums plummeting as low as -24°C (-10°F). Travelers should be prepared for a brisk climate, with warm clothing essential for outdoor activities.

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

The chart illustrates December temperature patterns in Ostrov, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ostrov, December typically has an average temperature of -2°C (29°F), with highs reaching up to 9°C (48°F) and lows dropping to around -24°C (-10°F).
JanFebMarAprMayJunJulAugSepOctNovDec272733425363646254453729
Data source: Temperature data for Ostrov 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 Ostrov

In Ostrov in December, the precipitation amount is 58 mm (2.3 in) during 15 days of the month.

December Precipitation Trends in Ostrov

The chart displays monthly precipitation patterns in Ostrov, 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 Ostrov, December typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4139494572637410960695858
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ostrov

In Ostrov in December, humidity is 94%. With an average temperature of -2°C (29°F), this humidity feels like a bitter chill that seeps into your bones, making travel uncomfortable and causing your breath to steam in the cold air.

December Average Humidity in Ostrov

This chart illustrates the average monthly humidity levels in Ostrov, 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 Ostrov is approximately 94%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%90%86%69%78%79%83%89%93%94%94%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ostrov

In Ostrov 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 Ostrov.

Maximum UV Index Levels in Ostrov for December

The chart shows the monthly maximum UV Index (UVI) for Ostrov 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 Ostrov typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Ostrov 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 Ostrov Compares to Other Months

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

This table compares monthly weather conditions in Ostrov, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)41 mm (1.6 inches)94%low
February Weather-3°C (27°F)39 mm (1.5 inches)93%low
March Weather0°C (33°F)49 mm (1.9 inches)89%moderate
April Weather6°C (43°F)45 mm (1.8 inches)86%moderate
May Weather11°C (53°F)72 mm (2.8 inches)69%high
June Weather17°C (63°F)63 mm (2.5 inches)78%high
July Weather18°C (65°F)74 mm (2.9 inches)79%high
August Weather17°C (62°F)109 mm (4.3 inches)83%high
September Weather12°C (55°F)60 mm (2.4 inches)89%moderate
October Weather7°C (46°F)69 mm (2.7 inches)93%low
November Weather3°C (38°F)58 mm (2.3 inches)94%low
December Weather-2°C (29°F)58 mm (2.3 inches)94%low

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