September Weather in Dalay, Mongolia

Last updated: August 28, 2025

In Dalay, Mongolia, the average temperature in September hovers around 14°C (57°F), offering a pleasant climate for various activities. Expect temperatures to range from a chilly -4°C (25°F) to a warm 26°C (80°F). Rainfall is limited, with an average precipitation of only 10 mm (0.4 in) over 3 days, making it an ideal time for outdoor exploration. The average humidity sits comfortably at 41%, ensuring a cozy atmosphere throughout the month.

September Temperature in Dalay

In September in Dalay, the average temperature is 14°C (57°F). The maximum can reach 26°C (80°F) and the minimum can be as low as -4°C (25°F). Be prepared for a wide range of temperatures, making it a great time for layering and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Dalay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dalay, September typically has an average temperature of 14°C (57°F), with highs reaching up to 26°C (80°F) and lows dropping to around -4°C (25°F).

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

September Precipitation in Dalay

In Dalay in September, the precipitation amount is 10 mm (0.4 in) over a period of 3 days.

September Precipitation Trends in Dalay

The chart displays monthly precipitation patterns in Dalay, 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 Dalay, September typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Dalay

In Dalay in September humidity is 41%. With an average temperature of 14°C (57°F), this humidity feels like a refreshing breeze, making it pleasant for traveling.

September Average Humidity in Dalay

This chart illustrates the average monthly humidity levels in Dalay, 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 Dalay is approximately 41%, 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 Dalay

In Dalay in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Dalay.

Maximum UV Index Levels in Dalay for September

The chart shows the monthly maximum UV Index (UVI) for Dalay 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 Dalay typically reaches 8, which falls under the very high exposure category.

Data source: Dalay 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 Dalay Compares to Other Months

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

This table compares monthly weather conditions in Dalay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-14°C (6°F)	2 mm (0.1 inches)	69%	low
February Weather	-11°C (13°F)	4 mm (0.2 inches)	58%	moderate
March Weather	-1°C (30°F)	9 mm (0.3 inches)	41%	high
April Weather	7°C (44°F)	7 mm (0.3 inches)	43%	very high
May Weather	13°C (55°F)	11 mm (0.4 inches)	31%	very high
June Weather	19°C (66°F)	15 mm (0.6 inches)	32%	extreme
July Weather	21°C (70°F)	39 mm (1.5 inches)	31%	extreme
August Weather	19°C (66°F)	24 mm (0.9 inches)	38%	extreme
September Weather	14°C (57°F)	10 mm (0.4 inches)	41%	very high
October Weather	3°C (38°F)	4 mm (0.1 inches)	44%	moderate
November Weather	-6°C (22°F)	3 mm (0.1 inches)	51%	moderate
December Weather	-14°C (8°F)	1 mm (0.1 inches)	75%	low