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December Weather in OElgii, Mongolia

Last updated: August 28, 2025

In December, the average temperature in OElgii, Mongolia plummets to -21°C (-5°F). While it can dip as low as -37°C (-35°F), temperatures can occasionally rise to a maximum of 0°C (31°F). Precipitation is minimal, with only 2 mm (0.1 in) recorded over 0 days. The average humidity lingers at a chilly 96%, creating a brisk atmosphere typical of this time of year.

December Temperature in OElgii

In December in OElgii, the average temperature is -21°C (-5°F), with maximums reaching 0°C (31°F) and minimums dipping as low as -37°C (-35°F). Travelers should be prepared for extremely cold conditions and dress warmly if visiting during this time.

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

The chart illustrates December temperature patterns in OElgii, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In OElgii, December typically has an average temperature of -21°C (-5°F), with highs reaching up to 0°C (31°F) and lows dropping to around -37°C (-35°F).
JanFebMarAprMayJunJulAugSepOctNovDec-83193748576056452910-6
Data source: Temperature data for OElgii 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 OElgii

In OElgii in December, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

December Precipitation Trends in OElgii

The chart displays monthly precipitation patterns in OElgii, 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 OElgii, December typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec129112529674615642
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in OElgii

In OElgii in December humidity is 96%. With an average temperature of -21°C (-5°F), this humidity feels like a biting chill that makes breathing difficult, turning the air into a thick, frosty mist that clings to your skin, making any outdoor activities feel like an endurance test rather than a leisurely journey.

December Average Humidity in OElgii

This chart illustrates the average monthly humidity levels in OElgii, 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 OElgii is approximately 96%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%92%86%79%70%59%56%64%70%86%94%96%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in OElgii

In OElgii 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 OElgii.

Maximum UV Index Levels in OElgii for December

The chart shows the monthly maximum UV Index (UVI) for OElgii 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 OElgii typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357109997521
Data source: OElgii 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 OElgii Compares to Other Months

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

This table compares monthly weather conditions in OElgii, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-22°C (-7°F)1 mm (0.1 inches)96%low
February Weather-16°C (3°F)2 mm (0.1 inches)92%moderate
March Weather-7°C (19°F)9 mm (0.3 inches)86%moderate
April Weather3°C (37°F)10 mm (0.4 inches)79%high
May Weather9°C (49°F)25 mm (1.0 inches)70%very high
June Weather14°C (58°F)29 mm (1.1 inches)59%very high
July Weather16°C (60°F)67 mm (2.6 inches)56%very high
August Weather13°C (57°F)46 mm (1.8 inches)64%very high
September Weather7°C (45°F)15 mm (0.6 inches)70%high
October Weather-2°C (29°F)6 mm (0.2 inches)86%moderate
November Weather-12°C (10°F)4 mm (0.2 inches)94%low
December Weather-21°C (-5°F)2 mm (0.1 inches)96%low

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