September Weather in Bayanhoshuu, Mongolia

Last updated: August 28, 2025

The average temperature in Bayanhoshuu, Mongolia during September is a comfortable 14°C (57°F), with minimum temperatures dropping to -4°C (25°F) and maximum highs reaching up to 31°C (88°F). Visitors can expect a total precipitation amount of 12 mm (0.5 in) over 2 days, paired with an average humidity level of 70%.

September Temperature in Bayanhoshuu

In September in Bayanhoshuu, the average temperature is 14°C (57°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as -4°C (25°F). Be prepared for a wide range of temperatures when traveling this month.

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 14°C (57°F), with highs reaching up to 31°C (88°F) and lows dropping to around -4°C (25°F).

Data source: Temperature data for Bayanhoshuu generated using information from the Copernicus Climate Change Service.

September Precipitation in Bayanhoshuu

In Bayanhoshuu in September, the precipitation amount is 12 mm (0.5 in) over the course of 2 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 12 mm (0.5 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Bayanhoshuu

In Bayanhoshuu in September, humidity is 70%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket wrapping around you, making travel slightly uncomfortable as the air feels heavier and every step seems more laborious.

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 70%, offering insight into how humid the weather typically is during this month.

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 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bayanhoshuu, you can refer to this 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 6, which falls under the high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-20°C (-4°F)	1 mm (0.0 inches)	94%	low
February Weather	-15°C (6°F)	2 mm (0.1 inches)	88%	moderate
March Weather	-3°C (26°F)	6 mm (0.2 inches)	80%	moderate
April Weather	7°C (45°F)	5 mm (0.2 inches)	71%	high
May Weather	15°C (58°F)	13 mm (0.5 inches)	57%	very high
June Weather	21°C (69°F)	12 mm (0.5 inches)	56%	very high
July Weather	22°C (72°F)	25 mm (1.0 inches)	64%	very high
August Weather	20°C (68°F)	24 mm (0.9 inches)	68%	very high
September Weather	14°C (57°F)	12 mm (0.5 inches)	70%	high
October Weather	4°C (39°F)	6 mm (0.2 inches)	79%	moderate
November Weather	-7°C (20°F)	2 mm (0.1 inches)	86%	low
December Weather	-18°C (0°F)	2 mm (0.1 inches)	95%	low