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September Weather in Bayan-Uhaa, Mongolia

Last updated: August 28, 2025

In Bayan-Uhaa, Mongolia, the average temperature in September hovers around 8°C (46°F). Expect a chill, as temperatures can dip to a minimum of -8°C (18°F), while the mercury can rise as high as 27°C (80°F). With an average precipitation of 34 mm (1.3 in) spread over 7 days, and a humidity level of 78%, prepare for potentially damp and brisk conditions. Stay warm!

September Temperature in Bayan-Uhaa

In September in Bayan-Uhaa, the average temperature is 8°C (46°F), with maximums reaching 27°C (80°F) and minimums dropping as low as -8°C (18°F). Travelers should be prepared for a wide range of weather conditions during this month.

September Weather in Bayan-Uhaa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bayan-Uhaa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayan-Uhaa, September typically has an average temperature of 8°C (46°F), with highs reaching up to 27°C (80°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec-10-3153548586157462910-6
Data source: Temperature data for Bayan-Uhaa 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 Bayan-Uhaa

In Bayan-Uhaa in September, the total precipitation amount is 34 mm (1.3 in) over the course of 7 days.

September Precipitation Trends in Bayan-Uhaa

The chart displays monthly precipitation patterns in Bayan-Uhaa, 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 Bayan-Uhaa, September typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec381225314067753420104
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bayan-Uhaa

In Bayan-Uhaa in September, humidity is 78%. With an average temperature of 8°C (46°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to dress in layers to stay warm while exploring.

September Average Humidity in Bayan-Uhaa

This chart illustrates the average monthly humidity levels in Bayan-Uhaa, 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 Bayan-Uhaa is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%89%84%80%71%71%75%74%78%86%94%96%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayan-Uhaa

In Bayan-Uhaa in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bayan-Uhaa, you can refer to this Hourly UV Index in Bayan-Uhaa.

Maximum UV Index Levels in Bayan-Uhaa for September

The chart shows the monthly maximum UV Index (UVI) for Bayan-Uhaa 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 Bayan-Uhaa typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2368109996522
Data source: Bayan-Uhaa 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 Bayan-Uhaa Compares to Other Months

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

This table compares monthly weather conditions in Bayan-Uhaa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-23°C (-10°F)3 mm (0.1 inches)94%low
February Weather-19°C (-3°F)8 mm (0.3 inches)89%moderate
March Weather-10°C (15°F)12 mm (0.5 inches)84%high
April Weather1°C (35°F)25 mm (1.0 inches)80%very high
May Weather9°C (48°F)31 mm (1.2 inches)71%very high
June Weather14°C (58°F)40 mm (1.6 inches)71%very high
July Weather16°C (62°F)67 mm (2.6 inches)75%very high
August Weather14°C (57°F)75 mm (3.0 inches)74%very high
September Weather8°C (46°F)34 mm (1.3 inches)78%high
October Weather-2°C (29°F)20 mm (0.8 inches)86%moderate
November Weather-12°C (10°F)10 mm (0.4 inches)94%low
December Weather-21°C (-5°F)4 mm (0.2 inches)96%low

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