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September Weather in Buyant, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Buyant, Mongolia hovers around 3°C (38°F). While you might experience chilly lows of -18°C (0°F), there's a chance to enjoy warmer days peaking at 18°C (65°F). Expect about 31 mm (1.2 in) of precipitation over 8 days, with an average humidity of 70% to round out your experience.

September Temperature in Buyant

In September in Buyant, the average temperature is 3°C (38°F). The maximum can reach 18°C (65°F), while the minimum can drop as low as -18°C (0°F). It's advisable to pack layers and prepare for varying weather conditions when traveling to Buyant during this month.

September Weather in Buyant: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Buyant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Buyant, September typically has an average temperature of 3°C (38°F), with highs reaching up to 18°C (65°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec-13-5825394852493818-0-12
Data source: Temperature data for Buyant 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.

September Precipitation in Buyant

In Buyant in September, the precipitation amount is 31 mm (1.2 in) over the course of 8 days.

September Precipitation Trends in Buyant

The chart displays monthly precipitation patterns in Buyant, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Buyant, September typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec371518425270733117176
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Buyant

In Buyant in September, humidity is 70%. With an average temperature of 3°C (38°F), this humidity feels like a damp chill that can make even short walks outside feel uncomfortable, often leaving travelers feeling cold and clammy despite the relatively mild temperature.

September Average Humidity in Buyant

This chart illustrates the average monthly humidity levels in Buyant, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Buyant is approximately 70%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Buyant

In Buyant in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Buyant.

Maximum UV Index Levels in Buyant for September

The chart shows the monthly maximum UV Index (UVI) for Buyant in September, 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 September, the maximum UV index in Buyant typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec237910101097532
Data source: Buyant September 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 September Weather in Buyant Compares to Other Months

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

This table compares monthly weather conditions in Buyant, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-25°C (-13°F)3 mm (0.1 inches)96%low
February Weather-21°C (-5°F)7 mm (0.3 inches)92%moderate
March Weather-13°C (8°F)15 mm (0.6 inches)86%high
April Weather-4°C (26°F)18 mm (0.7 inches)79%very high
May Weather4°C (39°F)42 mm (1.6 inches)70%very high
June Weather9°C (49°F)52 mm (2.0 inches)59%very high
July Weather11°C (52°F)70 mm (2.8 inches)56%very high
August Weather9°C (49°F)73 mm (2.9 inches)64%very high
September Weather3°C (38°F)31 mm (1.2 inches)70%high
October Weather-8°C (18°F)17 mm (0.7 inches)86%moderate
November Weather-18°C (0°F)17 mm (0.7 inches)94%moderate
December Weather-24°C (-12°F)6 mm (0.2 inches)96%low

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