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September Weather in Bulgan, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Bulgan, Mongolia is a crisp 11°C (51°F), with minimums dipping to a chilly -5°C (23°F) and maximums reaching a warm 29°C (85°F). Expect about 49 mm (1.9 in) of precipitation over 8 days, making it a relatively wet month. Additionally, the average humidity sits at a comfortable 79%, perfect for those who enjoy a bit of moisture in the air.

September Temperature in Bulgan

In September in Bulgan, the average temperature is 11°C (51°F). Maximums can reach 29°C (85°F), while minimums can drop as low as -5°C (23°F). Be prepared for a wide range of temperatures during your travels!

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

The chart illustrates September temperature patterns in Bulgan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bulgan, September typically has an average temperature of 11°C (51°F), with highs reaching up to 29°C (85°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec-342439526366615133162
Data source: Temperature data for Bulgan 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 Bulgan

In Bulgan in September, the precipitation amount is 49 mm (1.9 in) spread over 8 days.

September Precipitation Trends in Bulgan

The chart displays monthly precipitation patterns in Bulgan, 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 Bulgan, September typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec3811223550841014921115
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bulgan

In Bulgan in September, humidity is 79%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill in the air, making it necessary to dress in layers while exploring the local sights, as the coolness combined with the high moisture can create an uncomfortable, sticky atmosphere for travelers.

September Average Humidity in Bulgan

This chart illustrates the average monthly humidity levels in Bulgan, 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 Bulgan is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%78%66%70%65%73%78%79%80%78%78%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bulgan

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

Maximum UV Index Levels in Bulgan for September

The chart shows the monthly maximum UV Index (UVI) for Bulgan 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 Bulgan typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986421
Data source: Bulgan 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 Bulgan Compares to Other Months

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

This table compares monthly weather conditions in Bulgan, 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)90%low
February Weather-16°C (4°F)8 mm (0.3 inches)77%moderate
March Weather-5°C (24°F)11 mm (0.4 inches)66%moderate
April Weather4°C (40°F)22 mm (0.9 inches)70%high
May Weather11°C (52°F)35 mm (1.4 inches)65%very high
June Weather17°C (63°F)50 mm (2.0 inches)73%very high
July Weather19°C (66°F)84 mm (3.3 inches)78%very high
August Weather16°C (61°F)101 mm (4.0 inches)79%very high
September Weather11°C (51°F)49 mm (1.9 inches)79%high
October Weather1°C (33°F)21 mm (0.8 inches)78%moderate
November Weather-9°C (17°F)11 mm (0.4 inches)78%low
December Weather-17°C (2°F)5 mm (0.2 inches)89%low

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