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September Weather in Bayanhoshuu, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Bayanhoshuu, Mongolia hovers around a cool 6°C (44°F). You may experience a brisk minimum of -10°C (14°F), but on warmer days, it can reach up to 23°C (73°F). Expect 28 mm (1.1 in) of precipitation over about 5 days, with an average humidity of 68%, adding to the fresh, crisp air of the season.

September Temperature in Bayanhoshuu

In September in Bayanhoshuu, the average temperature is 6°C (44°F). Maximums can reach 23°C (73°F) and minimums can be as low as -10°C (14°F). This variation in temperature makes Bayanhoshuu a destination where travelers should be prepared for both mild and chilly weather.

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

The chart illustrates September temperature patterns in Bayanhoshuu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayanhoshuu, September typically has an average temperature of 6°C (44°F), with highs reaching up to 23°C (73°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec-7-1163343535753432710-5
Data source: Temperature data for Bayanhoshuu 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 Bayanhoshuu

In Bayanhoshuu in September, the precipitation amount is 28 mm (1.1 in) over a period of 5 days.

September Precipitation Trends in Bayanhoshuu

The chart displays monthly precipitation patterns in Bayanhoshuu, 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 Bayanhoshuu, September typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec259202340727828962
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bayanhoshuu

In Bayanhoshuu in September humidity is 68%. With an average temperature of 6°C (44°F), this humidity feels like a chilly, damp embrace that can make outdoor activities uncomfortable and might leave travelers feeling chilled to the bone, even when bundled up.

September Average Humidity in Bayanhoshuu

This chart illustrates the average monthly humidity levels in Bayanhoshuu, 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 Bayanhoshuu is approximately 68%, 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 September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayanhoshuu

In Bayanhoshuu 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 Bayanhoshuu.

Maximum UV Index Levels in Bayanhoshuu for September

The chart shows the monthly maximum UV Index (UVI) for Bayanhoshuu 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 Bayanhoshuu typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2369111010107532
Data source: Bayanhoshuu 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 Bayanhoshuu Compares to Other Months

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

This table compares monthly weather conditions in Bayanhoshuu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-22°C (-7°F)2 mm (0.1 inches)89%low
February Weather-18°C (-1°F)5 mm (0.2 inches)81%moderate
March Weather-9°C (16°F)9 mm (0.4 inches)72%high
April Weather0°C (33°F)20 mm (0.8 inches)69%very high
May Weather6°C (44°F)23 mm (0.9 inches)54%extreme
June Weather12°C (53°F)40 mm (1.6 inches)60%very high
July Weather14°C (57°F)72 mm (2.8 inches)64%very high
August Weather11°C (53°F)78 mm (3.1 inches)65%very high
September Weather6°C (44°F)28 mm (1.1 inches)68%high
October Weather-3°C (27°F)9 mm (0.4 inches)68%moderate
November Weather-12°C (10°F)6 mm (0.3 inches)75%moderate
December Weather-21°C (-5°F)2 mm (0.1 inches)89%low

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