September Weather in Bayanhongor, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Bayanhongor, Mongolia hovers around 9°C (48°F). Expect a chilly minimum of -9°C (17°F) and a pleasant maximum of 25°C (77°F). With an average humidity of 68%, you'll find the air quite refreshing. Be prepared for occasional showers, as 20 mm (0.8 in) of precipitation is expected over 4 days.

September Temperature in Bayanhongor

In September in Bayanhongor, the average temperature is 9°C (48°F). The maximum can reach 25°C (77°F) and the minimum can be as low as -9°C (17°F). Be prepared for a wide range of temperatures and pack accordingly if you're planning to travel.

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

The chart illustrates September 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, September typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (77°F) and lows dropping to around -9°C (17°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.

September Precipitation in Bayanhongor

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

September Precipitation Trends in Bayanhongor

The chart displays monthly precipitation patterns in Bayanhongor, 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 Bayanhongor, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec2410141627616320762
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bayanhongor

In Bayanhongor in September humidity is 68%. With average temperature 9°C (48°F), this humidity feels like a chilly dampness that clings to your skin, making it essential to dress in layers and carry an umbrella for unexpected drizzles, while the cool air refreshes your senses as you explore the sights.

September Average Humidity in Bayanhongor

This chart illustrates the average monthly humidity levels in Bayanhongor, 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 Bayanhongor 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 Bayanhongor

In Bayanhongor 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 Bayanhongor.

Maximum UV Index Levels in Bayanhongor for September

The chart shows the monthly maximum UV Index (UVI) for Bayanhongor 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 Bayanhongor typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2369101010107532
Data source: Bayanhongor 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 Bayanhongor Compares to Other Months

Weather in Bayanhongor varies notably across the year, with each month offering distinct climate conditions. This page compares September’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 September’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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