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September Weather in Ulaan-Uul, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Ulaan-Uul, Mongolia hovers around 16°C (60°F), with a striking range that can dip to a chilly -2°C (29°F) or peak at a warm 31°C (87°F). Expect about 18 mm (0.7 in) of precipitation over approximately 3 days throughout the month, and enjoy a comfortable average humidity level of 54%. Stay prepared for anything from brisk mornings to sun-soaked afternoons!

September Temperature in Ulaan-Uul

In September in Ulaan-Uul, the average temperature is 16°C (60°F), with maximums reaching 31°C (87°F) and minimums dropping as low as -2°C (29°F). Visitors should be prepared for a wide range of temperatures and pack accordingly for their trip.

September Weather in Ulaan-Uul: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ulaan-Uul, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ulaan-Uul, September typically has an average temperature of 16°C (60°F), with highs reaching up to 31°C (87°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec3103046597176696041235
Data source: Temperature data for Ulaan-Uul 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 Ulaan-Uul

In Ulaan-Uul in September, the precipitation amount is 18 mm (0.7 in) over a span of 3 days.

September Precipitation Trends in Ulaan-Uul

The chart displays monthly precipitation patterns in Ulaan-Uul, 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 Ulaan-Uul, September typically receives around 18 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec156912146346181232
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ulaan-Uul

In Ulaan-Uul in September, humidity is 54%. With an average temperature of 16°C (60°F), this humidity feels like a mild and comfortable embrace, making it perfect for leisurely sightseeing and exploring the local attractions without feeling overheated.

September Average Humidity in Ulaan-Uul

This chart illustrates the average monthly humidity levels in Ulaan-Uul, 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 Ulaan-Uul is approximately 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%69%45%47%40%45%48%57%54%57%53%73%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ulaan-Uul

In Ulaan-Uul 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 Ulaan-Uul.

Maximum UV Index Levels in Ulaan-Uul for September

The chart shows the monthly maximum UV Index (UVI) for Ulaan-Uul 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 Ulaan-Uul typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236791010107532
Data source: Ulaan-Uul 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 Ulaan-Uul Compares to Other Months

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

This table compares monthly weather conditions in Ulaan-Uul, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-16°C (4°F)1 mm (0.0 inches)82%low
February Weather-12°C (11°F)4 mm (0.2 inches)69%moderate
March Weather-1°C (31°F)6 mm (0.2 inches)45%high
April Weather8°C (46°F)9 mm (0.4 inches)47%high
May Weather15°C (59°F)12 mm (0.5 inches)40%very high
June Weather21°C (71°F)14 mm (0.5 inches)45%very high
July Weather24°C (76°F)62 mm (2.5 inches)48%very high
August Weather20°C (69°F)46 mm (1.8 inches)57%very high
September Weather16°C (60°F)18 mm (0.7 inches)54%high
October Weather5°C (41°F)12 mm (0.5 inches)57%moderate
November Weather-5°C (23°F)3 mm (0.1 inches)53%moderate
December Weather-15°C (6°F)2 mm (0.1 inches)73%low

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