September Weather in Lun, Mongolia

Last updated: August 28, 2025

In Lun, Mongolia, the average temperature in September is a mild 12°C (54°F). However, be prepared for some extremes, as temperatures can dip to a minimum of -6°C (21°F) or climb up to a scorching 33°C (91°F). During this month, expect around 34 mm (1.3 in) of precipitation over approximately 6 days, coupled with an average humidity of 65%.

September Temperature in Lun

In September in Lun, the average temperature is 12°C (54°F), with maximums reaching 33°C (91°F) and minimums dropping to -6°C (21°F). This wide temperature range suggests that travelers should prepare for both warm and cool weather conditions during their visit.

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

The chart illustrates September temperature patterns in Lun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lun, September typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -6°C (21°F).

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

September Precipitation in Lun

In Lun in September, the total precipitation amount is 34 mm (1.3 in) spread over 6 days.

September Precipitation Trends in Lun

The chart displays monthly precipitation patterns in Lun, 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 Lun, September typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 6 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 Lun

In Lun in September, humidity is 65%. With an average temperature of 12°C (54°F), this humidity feels like a cool, damp embrace that can make outdoor activities a bit uncomfortable, but offers a refreshing atmosphere for exploring cozy cafes and indoor attractions.

September Average Humidity in Lun

This chart illustrates the average monthly humidity levels in Lun, 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 Lun is approximately 65%, 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 Lun

In Lun 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 Lun.

Maximum UV Index Levels in Lun for September

The chart shows the monthly maximum UV Index (UVI) for Lun 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 Lun typically reaches 7, which falls under the high exposure category.

Data source: Lun 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 Lun Compares to Other Months

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

This table compares monthly weather conditions in Lun, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-5°F)	2 mm (0.1 inches)	92%	low
February Weather	-16°C (4°F)	4 mm (0.2 inches)	84%	moderate
March Weather	-4°C (26°F)	4 mm (0.2 inches)	64%	moderate
April Weather	5°C (42°F)	15 mm (0.6 inches)	59%	high
May Weather	12°C (55°F)	14 mm (0.6 inches)	50%	very high
June Weather	19°C (66°F)	33 mm (1.3 inches)	55%	very high
July Weather	21°C (70°F)	44 mm (1.7 inches)	57%	very high
August Weather	18°C (64°F)	69 mm (2.7 inches)	58%	very high
September Weather	12°C (54°F)	34 mm (1.3 inches)	65%	high
October Weather	2°C (36°F)	13 mm (0.5 inches)	65%	moderate
November Weather	-8°C (18°F)	8 mm (0.3 inches)	67%	moderate
December Weather	-18°C (-1°F)	2 mm (0.1 inches)	89%	low