May Weather in Altan, Mongolia

Last updated: August 28, 2025

In May, the average temperature in Altan, Mongolia hovers around 11°C (52°F). Be prepared for a range of temperatures, with minimums dipping to -9°C (15°F) and maximums soaring up to 28°C (82°F). The weather can also be a bit damp, with an expected precipitation amount of 12 mm (0.5 in) over approximately 3 days. Average humidity sits at a comfortable 50%, making it a pleasant time to explore!

May Temperature in Altan

In May in Altan, the average temperature is 11°C (52°F). Maximum temperatures can reach 28°C (82°F), while minimums can dip as low as -9°C (15°F). Be prepared for a range of weather conditions when traveling to Altan this month.

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

The chart illustrates May temperature patterns in Altan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altan, May typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (82°F) and lows dropping to around -9°C (15°F).

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

May Precipitation in Altan

In Altan in May, the precipitation amount is 12 mm (0.5 in) during a span of 3 days.

May Precipitation Trends in Altan

The chart displays monthly precipitation patterns in Altan, 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 Altan, May typically receives around 12 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 Altan

In Altan in May, humidity is 50%. With an average temperature of 11°C (52°F), this humidity feels like a cool, crisp breeze that adds a refreshing layer to your travel experience, making it pleasant for outdoor activities while requiring a light jacket or sweater for comfort.

May Average Humidity in Altan

This chart illustrates the average monthly humidity levels in Altan, 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 Altan 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 Altan

In Altan 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 Altan.

Maximum UV Index Levels in Altan for May

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

Data source: Altan 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 Altan Compares to Other Months

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

This table compares monthly weather conditions in Altan, showing how May’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)	98%	low
February Weather	-18°C (1°F)	5 mm (0.2 inches)	94%	moderate
March Weather	-7°C (20°F)	6 mm (0.2 inches)	88%	moderate
April Weather	4°C (40°F)	11 mm (0.4 inches)	74%	high
May Weather	11°C (52°F)	12 mm (0.5 inches)	50%	very high
June Weather	17°C (63°F)	21 mm (0.8 inches)	48%	very high
July Weather	19°C (66°F)	48 mm (1.9 inches)	49%	very high
August Weather	16°C (61°F)	43 mm (1.7 inches)	54%	very high
September Weather	10°C (50°F)	15 mm (0.6 inches)	59%	high
October Weather	0°C (32°F)	12 mm (0.5 inches)	67%	moderate
November Weather	-10°C (14°F)	6 mm (0.2 inches)	86%	low
December Weather	-20°C (-4°F)	4 mm (0.1 inches)	96%	low