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September Weather in Bayantal, Mongolia

Last updated: August 28, 2025

In Bayantal, Mongolia, the average temperature in September hovers around 12°C (55°F). Expect a range of extremes with minimums plummeting to -6°C (21°F) and soaring to a maximum of 30°C (86°F). During this month, anticipate about 20 mm (0.8 in) of precipitation spread over 4 days, accompanied by an average humidity of 67%.

September Temperature in Bayantal

In September in Bayantal, the average temperature is 12°C (55°F). The maximum can reach 30°C (86°F), while the minimum can drop to as low as -6°C (21°F). Be prepared for a wide range of temperatures, making it essential to pack both warm and lightweight clothing for your trip.

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

The chart illustrates September temperature patterns in Bayantal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayantal, September typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (86°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec-162641546670645435182
Data source: Temperature data for Bayantal 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 Bayantal

In Bayantal in September, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

September Precipitation Trends in Bayantal

The chart displays monthly precipitation patterns in Bayantal, 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 Bayantal, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec133917225261201162
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bayantal

In Bayantal in September, humidity is 67%. With an average temperature of 12°C (55°F), this humidity feels like a cool mist that wraps around you, making outdoor activities refreshing yet slightly damp, ideal for leisurely strolls but requiring some planning for comfort while traveling.

September Average Humidity in Bayantal

This chart illustrates the average monthly humidity levels in Bayantal, 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 Bayantal is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%80%64%59%52%53%59%61%67%67%67%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayantal

In Bayantal 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 Bayantal.

Maximum UV Index Levels in Bayantal for September

The chart shows the monthly maximum UV Index (UVI) for Bayantal 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 Bayantal typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910997532
Data source: Bayantal 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 Bayantal Compares to Other Months

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

This table compares monthly weather conditions in Bayantal, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-18°C (-1°F)1 mm (0.0 inches)90%low
February Weather-14°C (6°F)3 mm (0.1 inches)80%moderate
March Weather-3°C (26°F)3 mm (0.1 inches)64%moderate
April Weather5°C (41°F)9 mm (0.3 inches)59%high
May Weather12°C (54°F)17 mm (0.7 inches)52%very high
June Weather19°C (67°F)22 mm (0.8 inches)53%very high
July Weather21°C (71°F)52 mm (2.1 inches)59%very high
August Weather18°C (64°F)61 mm (2.4 inches)61%very high
September Weather12°C (55°F)20 mm (0.8 inches)67%high
October Weather2°C (36°F)11 mm (0.4 inches)67%moderate
November Weather-8°C (18°F)6 mm (0.2 inches)67%moderate
December Weather-17°C (2°F)2 mm (0.1 inches)88%low

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