October Weather in Bayan, Mongolia

Last updated: August 28, 2025

In October, the average temperature in Bayan, Mongolia hovers around -1°C (30°F), with extremes ranging from a chilling -21°C (-6°F) to a surprisingly warm 18°C (64°F). Prepare for some precipitation, as you can expect about 20 mm (0.8 in) over 4 days, while the air maintains a high average humidity of 86%. Stay warm and dry!

October Temperature in Bayan

In October in Bayan, the average temperature is -1°C (30°F), with maximums reaching up to 18°C (64°F) and minimums dropping as low as -21°C (-6°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

October Weather in Bayan: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Bayan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayan, October typically has an average temperature of -1°C (30°F), with highs reaching up to 18°C (64°F) and lows dropping to around -21°C (-6°F).

Data source: Temperature data for Bayan generated using information from the Copernicus Climate Change Service.

October Precipitation in Bayan

In Bayan in October, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

October Precipitation Trends in Bayan

The chart displays monthly precipitation patterns in Bayan, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Bayan, October typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Bayan

In Bayan in October, humidity is 86%. With an average temperature of -1°C (30°F), this humidity feels like a heavy blanket wrapping around you, making traveling feel much colder and more uncomfortable than the temperature suggests.

October Average Humidity in Bayan

This chart illustrates the average monthly humidity levels in Bayan, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Bayan is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Bayan

In Bayan in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Bayan for better planning.

Maximum UV Index Levels in Bayan for October

The chart shows the monthly maximum UV Index (UVI) for Bayan in October, 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 October, the maximum UV index in Bayan typically reaches 4, which falls under the moderate exposure category.

Data source: Bayan October 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 October Weather in Bayan Compares to Other Months

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

This table compares monthly weather conditions in Bayan, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-21°C (-6°F)	2 mm (0.1 inches)	94%	low
February Weather	-17°C (2°F)	5 mm (0.2 inches)	89%	moderate
March Weather	-6°C (21°F)	10 mm (0.4 inches)	84%	moderate
April Weather	2°C (36°F)	29 mm (1.1 inches)	80%	high
May Weather	9°C (49°F)	28 mm (1.1 inches)	71%	very high
June Weather	15°C (59°F)	77 mm (3.0 inches)	71%	very high
July Weather	16°C (62°F)	99 mm (3.9 inches)	75%	very high
August Weather	14°C (57°F)	110 mm (4.3 inches)	74%	very high
September Weather	8°C (47°F)	35 mm (1.4 inches)	78%	high
October Weather	-1°C (30°F)	20 mm (0.8 inches)	86%	moderate
November Weather	-10°C (14°F)	6 mm (0.2 inches)	94%	low
December Weather	-18°C (1°F)	2 mm (0.1 inches)	96%	low