October Weather in Altan, Mongolia

Last updated: August 28, 2025

In Altan, Mongolia, the average temperature in October hovers around 0°C (32°F). Expect chilly nights with a minimum of -17°C (2°F), while the daytime can warm up to a pleasant 18°C (64°F). During this time, you might encounter about 12 mm (0.5 in) of precipitation spread over 3 days, and the humidity remains relatively high at an average of 67%. Stay prepared for an intriguing mix of winter weather!

October Temperature in Altan

In October in Altan, the average temperature is 0°C (32°F). The maximum can reach 18°C (64°F), while the minimum can dip as low as -17°C (2°F). Travelers should be prepared for a wide range of temperatures, so layering is key for comfort during your visit.

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

The chart illustrates October 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, October typically has an average temperature of 0°C (32°F), with highs reaching up to 18°C (64°F) and lows dropping to around -17°C (2°F).

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

October Precipitation in Altan

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

October Precipitation Trends in Altan

The chart displays monthly precipitation patterns in Altan, 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 Altan, October typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

October Humidity in Altan

In Altan in October, humidity is 67%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that seeps into your bones, making travel less comfortable as the cold air mingles with the moisture, creating a sharp, biting sensation that can make exploring the area feel arduous and uninviting.

October Average Humidity in Altan

This chart illustrates the average monthly humidity levels in Altan, 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 Altan is approximately 67%, 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 Altan

In Altan in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Altan.

Maximum UV Index Levels in Altan for October

The chart shows the monthly maximum UV Index (UVI) for Altan 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 Altan typically reaches 5, which falls under the moderate exposure category.

Data source: Altan 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 Altan Compares to Other Months

Weather in Altan varies notably across the year, with each month offering distinct climate conditions. This page compares October’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 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)	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