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September Weather in Har-Us, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Har-Us, Mongolia hovers around 11°C (52°F). However, temperatures can range from a chilly -7°C (19°F) to a warm 29°C (84°F). Expect 16 mm (0.6 in) of precipitation over approximately 2 days, accompanied by an average humidity of 70% that adds to the atmosphere.

September Temperature in Har-Us

In September in Har-Us, the average temperature is 11°C (52°F). Maximums can reach 29°C (84°F), while minimums can dip as low as -7°C (19°F). This variation in temperatures means that travelers should be prepared for both warm days and chilly nights.

September Weather in Har-Us: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Har-Us, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Har-Us, September typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec-46244155656863523618-1
Data source: Temperature data for Har-Us generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Har-Us

In Har-Us in September, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

September Precipitation Trends in Har-Us

The chart displays monthly precipitation patterns in Har-Us, 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 Har-Us, September typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec2412132115333816744
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Har-Us

In Har-Us in September, humidity is 70%. With an average temperature of 11°C (52°F), this humidity feels like a chilly blanket hugging your skin, making outdoor exploration invigorating yet slightly uncomfortable without the right layers.

September Average Humidity in Har-Us

This chart illustrates the average monthly humidity levels in Har-Us, 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 Har-Us is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%88%80%71%57%56%64%68%70%79%87%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Har-Us

In Har-Us 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 Har-Us.

Maximum UV Index Levels in Har-Us for September

The chart shows the monthly maximum UV Index (UVI) for Har-Us 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 Har-Us typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357109997521
Data source: Har-Us 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 Har-Us Compares to Other Months

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

This table compares monthly weather conditions in Har-Us, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-20°C (-4°F)2 mm (0.1 inches)94%low
February Weather-15°C (6°F)4 mm (0.1 inches)88%moderate
March Weather-4°C (24°F)12 mm (0.5 inches)80%moderate
April Weather5°C (42°F)13 mm (0.5 inches)71%high
May Weather13°C (55°F)21 mm (0.8 inches)57%very high
June Weather18°C (65°F)15 mm (0.6 inches)56%very high
July Weather20°C (68°F)33 mm (1.3 inches)64%very high
August Weather17°C (64°F)37 mm (1.5 inches)68%very high
September Weather11°C (52°F)16 mm (0.6 inches)70%high
October Weather2°C (36°F)6 mm (0.3 inches)79%moderate
November Weather-8°C (18°F)4 mm (0.1 inches)86%low
December Weather-18°C (-1°F)4 mm (0.1 inches)95%low

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