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December Weather in Osa, Russian Federation

Last updated: August 27, 2025

In December, the average temperature in Osa, Russian Federation hovers around -18°C (-1°F), with extremes ranging from a chilling -45°C (-48°F) to a slightly milder 0°C (32°F). Expect 24 mm (0.9 in) of precipitation spread across 6 days, with an average humidity level of an impressive 96%. Prepare for a truly cold and damp experience!

December Temperature in Osa

In December in Osa, the average temperature is -18°C (0°F). The maximum can reach 0°C (32°F), while the minimum can drop as low as -45°C (-48°F). Travelers should be prepared for extremely cold conditions and dress accordingly to ensure comfort and safety.

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

The chart illustrates December temperature patterns in Osa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Osa, December typically has an average temperature of -18°C (-1°F), with highs reaching up to 0°C (32°F) and lows dropping to around -45°C (-48°F).
JanFebMarAprMayJunJulAugSepOctNovDec-5-0193850626662483415-1
Data source: Temperature data for Osa 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 Osa

In Osa in December, the total precipitation amount is 24 mm (0.9 in) over a span of 6 days.

December Precipitation Trends in Osa

The chart displays monthly precipitation patterns in Osa, 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 Osa, December typically receives around 24 mm (0.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec101013123849695965201324
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Osa

In Osa in December, humidity is 96%. With an average temperature of -18°C (-1°F), this humidity feels like a biting chill that seeps through layers of clothing, making outdoor travel an exhilarating yet challenging adventure.

December Average Humidity in Osa

This chart illustrates the average monthly humidity levels in Osa, 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 Osa is approximately 96%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%90%81%73%67%64%71%73%84%84%90%96%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Osa

In Osa 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 Osa.

Maximum UV Index Levels in Osa for December

The chart shows the monthly maximum UV Index (UVI) for Osa 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 Osa typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Osa 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 Osa Compares to Other Months

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

This table compares monthly weather conditions in Osa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-20°C (-5°F)10 mm (0.4 inches)94%low
February Weather-18°C (0°F)10 mm (0.4 inches)90%low
March Weather-7°C (20°F)13 mm (0.5 inches)81%moderate
April Weather3°C (38°F)12 mm (0.5 inches)73%moderate
May Weather10°C (50°F)38 mm (1.5 inches)67%high
June Weather17°C (62°F)49 mm (1.9 inches)64%very high
July Weather19°C (66°F)68 mm (2.7 inches)71%very high
August Weather17°C (62°F)59 mm (2.3 inches)73%high
September Weather9°C (49°F)65 mm (2.6 inches)84%moderate
October Weather1°C (34°F)20 mm (0.8 inches)84%moderate
November Weather-10°C (15°F)13 mm (0.5 inches)90%low
December Weather-18°C (-1°F)24 mm (0.9 inches)96%low

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