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September Weather in Bayandelger, Mongolia

Last updated: August 28, 2025

In September, the average temperature in Bayandelger, Mongolia hovers around 9°C (48°F). Expect a range from a chilly -9°C (17°F) to a pleasant 27°C (81°F). This month typically brings 52 mm (2.1 in) of precipitation spread over 8 days, with an average humidity level of 67%.

September Temperature in Bayandelger

In September in Bayandelger, the average temperature is 9°C (48°F), with maximums reaching 27°C (81°F) and minimums dropping as low as -9°C (17°F). It's advisable to pack layers to accommodate the wide temperature range during your travels.

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

The chart illustrates September temperature patterns in Bayandelger, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayandelger, September typically has an average temperature of 9°C (48°F), with highs reaching up to 27°C (81°F) and lows dropping to around -9°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec-9-219354860635848279-7
Data source: Temperature data for Bayandelger 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 Bayandelger

In Bayandelger in September, the total precipitation amount is 52 mm (2.1 in) over the course of 8 days.

September Precipitation Trends in Bayandelger

The chart displays monthly precipitation patterns in Bayandelger, 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 Bayandelger, September typically receives around 52 mm (2.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec235132550108835219102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bayandelger

In Bayandelger in September, humidity is 67%. With an average temperature of 9°C (48°F), this humidity feels like a cool blanket wrapping around you, making outdoor activities brisk and invigorating, yet requiring a light jacket to stay comfortable while exploring.

September Average Humidity in Bayandelger

This chart illustrates the average monthly humidity levels in Bayandelger, 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 Bayandelger is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%80%64%59%52%53%59%61%67%67%67%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bayandelger

In Bayandelger 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 Bayandelger.

Maximum UV Index Levels in Bayandelger for September

The chart shows the monthly maximum UV Index (UVI) for Bayandelger 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 Bayandelger typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357910997532
Data source: Bayandelger 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 Bayandelger Compares to Other Months

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

This table compares monthly weather conditions in Bayandelger, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-23°C (-9°F)2 mm (0.1 inches)90%low
February Weather-19°C (-1°F)3 mm (0.1 inches)80%moderate
March Weather-7°C (19°F)5 mm (0.2 inches)64%moderate
April Weather2°C (35°F)13 mm (0.5 inches)59%high
May Weather9°C (48°F)25 mm (1.0 inches)52%very high
June Weather15°C (60°F)50 mm (2.0 inches)53%very high
July Weather17°C (64°F)108 mm (4.2 inches)59%very high
August Weather14°C (58°F)83 mm (3.3 inches)61%very high
September Weather9°C (48°F)52 mm (2.1 inches)67%high
October Weather-3°C (28°F)19 mm (0.7 inches)67%moderate
November Weather-13°C (9°F)10 mm (0.4 inches)67%moderate
December Weather-22°C (-7°F)2 mm (0.1 inches)88%low

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