September Weather in Orhon, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Orhon, Mongolia is a mild 12°C (53°F), with fluctuations ranging from a minimum of -5°C (23°F) to a sunny maximum of 31°C (88°F). The weather brings about 49 mm (1.9 in) of precipitation over 8 days, contributing to an overall average humidity of 78%. Prepare accordingly for a mix of cool and warm days!

September Temperature in Orhon

In September in Orhon, the average temperature is 12°C (53°F). Maximum temperatures can reach as high as 31°C (88°F), while the minimum can drop to a chilly -5°C (23°F). Travelers should be prepared for a wide range of weather conditions during their visit.

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

The chart illustrates September temperature patterns in Orhon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Orhon, September typically has an average temperature of 12°C (53°F), with highs reaching up to 31°C (88°F) and lows dropping to around -5°C (23°F).

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

September Precipitation in Orhon

In Orhon in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

September Precipitation Trends in Orhon

The chart displays monthly precipitation patterns in Orhon, 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 Orhon, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 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 Orhon

In Orhon in September, humidity is 78%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that lingers in the air, making it essential to wear layers while exploring the sights, as the cool moisture can seep into your bones and leave you feeling a bit uncomfortable if not properly dressed for the weather.

September Average Humidity in Orhon

This chart illustrates the average monthly humidity levels in Orhon, 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 Orhon is approximately 78%, 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 Orhon

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

Maximum UV Index Levels in Orhon for September

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

Data source: Orhon 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 Orhon Compares to Other Months

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

This table compares monthly weather conditions in Orhon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-19°C (-2°F)	4 mm (0.2 inches)	95%	low
February Weather	-16°C (3°F)	4 mm (0.2 inches)	87%	moderate
March Weather	-4°C (26°F)	9 mm (0.3 inches)	70%	moderate
April Weather	5°C (42°F)	17 mm (0.7 inches)	65%	high
May Weather	12°C (54°F)	29 mm (1.1 inches)	60%	very high
June Weather	19°C (67°F)	51 mm (2.0 inches)	66%	very high
July Weather	21°C (70°F)	73 mm (2.9 inches)	74%	very high
August Weather	18°C (65°F)	78 mm (3.1 inches)	75%	very high
September Weather	12°C (53°F)	49 mm (1.9 inches)	78%	high
October Weather	2°C (36°F)	21 mm (0.8 inches)	76%	moderate
November Weather	-8°C (18°F)	9 mm (0.4 inches)	79%	low
December Weather	-16°C (3°F)	6 mm (0.2 inches)	95%	low