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December Weather in Ulaan-Uul, Mongolia

Last updated: August 28, 2025

In Ulaan-Uul, Mongolia, the average temperature in December hovers around -17°C (1°F), with extremes dipping as low as -35°C (-31°F) and occasionally rising to a maximum of 0°C (32°F). Precipitation is minimal, averaging only 2 mm (0.1 in) over the course of 0 days, while the atmosphere remains quite humid, with an average humidity of 80%.

December Temperature in Ulaan-Uul

In December in Ulaan-Uul, the average temperature is -17°C (1°F), with maximums reaching 0°C (32°F) and minimums plummeting to -35°C (-31°F). It's essential to prepare for extremely cold conditions if you're planning to visit during this time.

December Weather in Ulaan-Uul: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ulaan-Uul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ulaan-Uul, December typically has an average temperature of -17°C (1°F), with highs reaching up to 0°C (32°F) and lows dropping to around -35°C (-31°F).
JanFebMarAprMayJunJulAugSepOctNovDec-072541536367625234171
Data source: Temperature data for Ulaan-Uul 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 Ulaan-Uul

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

December Precipitation Trends in Ulaan-Uul

The chart displays monthly precipitation patterns in Ulaan-Uul, 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 Ulaan-Uul, December typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec239101218454915542
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ulaan-Uul

In Ulaan-Uul in December, humidity is 80%. With an average temperature of -17°C (1°F), this humidity feels like an icy blanket wrapping around you, making the cold air bite even deeper as you travel, turning every breath into a frosty cloud that lingers in the crisp atmosphere.

December Average Humidity in Ulaan-Uul

This chart illustrates the average monthly humidity levels in Ulaan-Uul, 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 Ulaan-Uul is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%68%47%45%34%35%37%42%43%47%56%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ulaan-Uul

In Ulaan-Uul in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Ulaan-Uul, you can visit Hourly UV Index in Ulaan-Uul.

Maximum UV Index Levels in Ulaan-Uul for December

The chart shows the monthly maximum UV Index (UVI) for Ulaan-Uul 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 Ulaan-Uul typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2368101010107532
Data source: Ulaan-Uul 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 Ulaan-Uul Compares to Other Months

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

This table compares monthly weather conditions in Ulaan-Uul, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-18°C (0°F)2 mm (0.1 inches)82%low
February Weather-14°C (8°F)3 mm (0.1 inches)68%moderate
March Weather-4°C (26°F)9 mm (0.4 inches)47%high
April Weather5°C (42°F)10 mm (0.4 inches)45%very high
May Weather12°C (53°F)12 mm (0.5 inches)34%very high
June Weather17°C (64°F)18 mm (0.7 inches)35%very high
July Weather19°C (67°F)45 mm (1.8 inches)37%very high
August Weather17°C (62°F)49 mm (1.9 inches)42%very high
September Weather11°C (53°F)15 mm (0.6 inches)43%high
October Weather1°C (34°F)4 mm (0.2 inches)47%moderate
November Weather-9°C (17°F)4 mm (0.1 inches)56%moderate
December Weather-17°C (1°F)2 mm (0.1 inches)80%low

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