September Weather in Darhan, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Darhan, Mongolia hovers around 12°C (54°F). Temperatures can range from a chilly -4°C (24°F) to a warm 32°C (90°F). Be prepared for some rain, as you'll likely see 44 mm (1.7 in) of precipitation spread over 6 days. With an average humidity of 79%, it's the perfect time to enjoy the unique atmosphere this location has to offer!

September Temperature in Darhan

In September in Darhan, the average temperature is 12°C (54°F), with maximums reaching 32°C (90°F) and minimums dropping as low as -4°C (24°F). Be prepared for a wide range of temperatures during your travels, ensuring you pack both warm and cool clothing.

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

The chart illustrates September temperature patterns in Darhan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Darhan, September typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (24°F).

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

September Precipitation in Darhan

In Darhan in September, the total precipitation amount is 44 mm (1.7 in) spread over 6 days.

September Precipitation Trends in Darhan

The chart displays monthly precipitation patterns in Darhan, 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 Darhan, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 6 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 Darhan

In Darhan in September, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

September Average Humidity in Darhan

This chart illustrates the average monthly humidity levels in Darhan, 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 Darhan is approximately 79%, 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 Darhan

In Darhan 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 Darhan, you can refer to this Hourly UV Index in Darhan.

Maximum UV Index Levels in Darhan for September

The chart shows the monthly maximum UV Index (UVI) for Darhan 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 Darhan typically reaches 6, which falls under the high exposure category.

Data source: Darhan 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 Darhan Compares to Other Months

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

This table compares monthly weather conditions in Darhan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-18°C (-1°F)	2 mm (0.1 inches)	90%	low
February Weather	-14°C (7°F)	7 mm (0.3 inches)	77%	moderate
March Weather	-3°C (27°F)	7 mm (0.3 inches)	66%	moderate
April Weather	5°C (42°F)	20 mm (0.8 inches)	70%	high
May Weather	12°C (55°F)	24 mm (0.9 inches)	65%	very high
June Weather	19°C (66°F)	52 mm (2.0 inches)	73%	very high
July Weather	20°C (69°F)	65 mm (2.6 inches)	78%	very high
August Weather	18°C (64°F)	89 mm (3.5 inches)	79%	very high
September Weather	12°C (54°F)	44 mm (1.7 inches)	79%	high
October Weather	2°C (36°F)	17 mm (0.7 inches)	78%	moderate
November Weather	-7°C (19°F)	10 mm (0.4 inches)	78%	low
December Weather	-16°C (3°F)	3 mm (0.1 inches)	89%	low