May Weather in Bayan, Mongolia

Last updated: August 28, 2025

In May, the average temperature in Bayan, Mongolia hovers around 12°C (54°F). Temperatures can swing from a chilling -10°C (14°F) to a warm 28°C (82°F). Expect a total precipitation of about 13 mm (0.5 in) spread over three days, accompanied by an average humidity of 50%. Prepare for a mix of weather this month!

May Temperature in Bayan

In May in Bayan, the average temperature is 12°C (54°F). The maximum can reach 28°C (82°F), while the minimum can drop as low as -10°C (14°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

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

The chart illustrates May 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, May typically has an average temperature of 12°C (54°F), with highs reaching up to 28°C (82°F) and lows dropping to around -10°C (14°F).

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

May Precipitation in Bayan

In Bayan in May, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

May Precipitation Trends in Bayan

The chart displays monthly precipitation patterns in Bayan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Bayan, May typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Bayan

In Bayan in May, humidity is 50%. With an average temperature of 12°C (54°F), this humidity feels like a crisp breath of fresh air, making it quite pleasant for traveling, as long as you're dressed for the cool temperatures.

May Average Humidity in Bayan

This chart illustrates the average monthly humidity levels in Bayan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Bayan is approximately 50%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Bayan

In Bayan in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Bayan.

Maximum UV Index Levels in Bayan for May

The chart shows the monthly maximum UV Index (UVI) for Bayan in May, 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 May, the maximum UV index in Bayan typically reaches 10, which falls under the very high exposure category.

Data source: Bayan May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-17°C (2°F)	2 mm (0.1 inches)	98%	low
February Weather	-12°C (10°F)	6 mm (0.2 inches)	94%	moderate
March Weather	-3°C (27°F)	6 mm (0.2 inches)	88%	moderate
April Weather	6°C (42°F)	10 mm (0.4 inches)	74%	high
May Weather	12°C (54°F)	13 mm (0.5 inches)	50%	very high
June Weather	18°C (64°F)	18 mm (0.7 inches)	48%	very high
July Weather	19°C (67°F)	35 mm (1.4 inches)	49%	very high
August Weather	17°C (62°F)	58 mm (2.3 inches)	54%	very high
September Weather	11°C (52°F)	18 mm (0.7 inches)	59%	high
October Weather	2°C (35°F)	12 mm (0.5 inches)	67%	moderate
November Weather	-7°C (20°F)	5 mm (0.2 inches)	86%	moderate
December Weather	-16°C (4°F)	3 mm (0.1 inches)	96%	low