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September Weather in Bornuur, Mongolia

Last updated: August 28, 2025

In Bornuur, Mongolia, the average temperature in September hovers around 11°C (52°F). The range can be quite dramatic, with minimums dipping to -5°C (23°F) and maximums soaring to 31°C (87°F). Expect 68 mm (2.7 in) of precipitation spread over 8 days, contributing to an average humidity of 78%. A cozy month, indeed!

September Temperature in Bornuur

In September in Bornuur, the average temperature is 11°C (52°F). Maximum temperatures can reach 31°C (87°F), while minimums can drop as low as -5°C (23°F). Travelers should be prepared for a wide range of weather conditions, from warm days to chilly nights.

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

The chart illustrates September temperature patterns in Bornuur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bornuur, September typically has an average temperature of 11°C (52°F), with highs reaching up to 31°C (87°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec-332540526467625234171
Data source: Temperature data for Bornuur 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 Bornuur

In Bornuur in September, the precipitation amount is 68 mm (2.7 in) spread over 8 days.

September Precipitation Trends in Bornuur

The chart displays monthly precipitation patterns in Bornuur, 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 Bornuur, September typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec379203158841026831124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bornuur

In Bornuur in September humidity is 78%. With an average temperature of 11°C (52°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities somewhat uncomfortable and travel more challenging as you navigate the moist air.

September Average Humidity in Bornuur

This chart illustrates the average monthly humidity levels in Bornuur, 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 Bornuur is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%87%70%65%60%66%75%75%78%76%79%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bornuur

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

Maximum UV Index Levels in Bornuur for September

The chart shows the monthly maximum UV Index (UVI) for Bornuur 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 Bornuur typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986431
Data source: Bornuur 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 Bornuur Compares to Other Months

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

This table compares monthly weather conditions in Bornuur, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-19°C (-3°F)3 mm (0.1 inches)95%low
February Weather-16°C (4°F)7 mm (0.3 inches)87%moderate
March Weather-4°C (25°F)9 mm (0.4 inches)70%moderate
April Weather4°C (40°F)20 mm (0.8 inches)65%high
May Weather11°C (52°F)31 mm (1.2 inches)60%very high
June Weather18°C (64°F)58 mm (2.3 inches)66%very high
July Weather19°C (67°F)84 mm (3.3 inches)74%very high
August Weather16°C (62°F)102 mm (4.0 inches)75%very high
September Weather11°C (52°F)68 mm (2.7 inches)78%high
October Weather1°C (35°F)31 mm (1.2 inches)76%moderate
November Weather-9°C (17°F)12 mm (0.5 inches)79%moderate
December Weather-17°C (1°F)4 mm (0.2 inches)95%low

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