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December Weather in Bayanhongor, Mongolia

Last updated: August 28, 2025

In December, the average temperature in Bayanhongor, Mongolia hovers around -18°C (0°F), with extremes ranging from a chilling -40°C (-40°F) to a milder -1°C (31°F). This month sees minimal precipitation, with just 2 mm (0.1 in) over 0 days, contributing to an average humidity of a brisk 89%. Stay warm and prepared for the cold!

December Temperature in Bayanhongor

In December in Bayanhongor, the average temperature is -18°C (0°F). The maximum can reach -1°C (31°F) and the minimum can be as low as -40°C (-40°F). Travelers should be prepared for extreme cold conditions and dress in layers to enjoy their time outdoors.

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

The chart illustrates December temperature patterns in Bayanhongor, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayanhongor, December typically has an average temperature of -18°C (0°F), with highs reaching up to -1°C (31°F) and lows dropping to around -40°C (-40°F).
JanFebMarAprMayJunJulAugSepOctNovDec-24223748596257483114-0
Data source: Temperature data for Bayanhongor 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 Bayanhongor

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

December Precipitation Trends in Bayanhongor

The chart displays monthly precipitation patterns in Bayanhongor, 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 Bayanhongor, December typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec2410141627616320762
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bayanhongor

In Bayanhongor in December, humidity is 89%. With an average temperature of -18°C (0°F), this humidity feels like a biting chill that seeps into your bones, making traveling feel even more arduous as you navigate through the frigid air.

December Average Humidity in Bayanhongor

This chart illustrates the average monthly humidity levels in Bayanhongor, 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 Bayanhongor is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%81%72%69%54%61%65%65%68%68%75%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bayanhongor

In Bayanhongor 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 Bayanhongor, you can visit Hourly UV Index in Bayanhongor.

Maximum UV Index Levels in Bayanhongor for December

The chart shows the monthly maximum UV Index (UVI) for Bayanhongor 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 Bayanhongor typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2369101010107532
Data source: Bayanhongor 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 Bayanhongor Compares to Other Months

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

This table compares monthly weather conditions in Bayanhongor, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-19°C (-2°F)2 mm (0.1 inches)89%low
February Weather-15°C (5°F)4 mm (0.2 inches)81%moderate
March Weather-6°C (22°F)10 mm (0.4 inches)72%high
April Weather3°C (38°F)14 mm (0.5 inches)69%very high
May Weather9°C (49°F)16 mm (0.6 inches)54%very high
June Weather15°C (59°F)27 mm (1.1 inches)60%very high
July Weather17°C (62°F)61 mm (2.4 inches)64%very high
August Weather14°C (58°F)63 mm (2.5 inches)65%very high
September Weather9°C (48°F)20 mm (0.8 inches)68%high
October Weather-1°C (31°F)7 mm (0.3 inches)68%moderate
November Weather-10°C (15°F)6 mm (0.2 inches)75%moderate
December Weather-18°C (0°F)2 mm (0.1 inches)89%low

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