January Weather in Uliastay, Mongolia

Last updated: August 28, 2025

In Uliastay, Mongolia, the average temperature in January hovers around -23°C (-9°F). Be prepared for extremes, as temperatures can plummet to a frigid -42°C (-43°F), while the maximum reaches a relatively mild -5°C (24°F). Expect minimal precipitation, with an average of just 4 mm (0.1 in) over 1 day. The air is notably crisp, with the average humidity lingering at a high 98%.

January Temperature in Uliastay

In January in Uliastay, the average temperature is -23°C (-9°F). The maximum can reach -5°C (24°F), and the minimum can be as low as -42°C (-43°F). Travelers should be well-prepared for extreme cold conditions during this time.

January Weather in Uliastay: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Uliastay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Uliastay, January typically has an average temperature of -23°C (-9°F), with highs reaching up to -5°C (24°F) and lows dropping to around -42°C (-43°F).

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

January Precipitation in Uliastay

In Uliastay in January, the precipitation amount is 4 mm (0.1 in) over the course of 1 day.

January Precipitation Trends in Uliastay

The chart displays monthly precipitation patterns in Uliastay, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Uliastay, January typically receives around 4 mm (0.1 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Uliastay

In Uliastay in January, humidity is 98%. With an average temperature of -23°C (-9°F), this humidity feels like an Arctic fog settling in, making every breath a chilling whisper and transforming every exposed surface into a frosty spectacle that can deter even the most adventurous traveler.

January Average Humidity in Uliastay

This chart illustrates the average monthly humidity levels in Uliastay, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Uliastay is approximately 98%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Uliastay

In Uliastay in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Uliastay, you can visit Hourly UV Index in Uliastay.

Maximum UV Index Levels in Uliastay for January

The chart shows the monthly maximum UV Index (UVI) for Uliastay in January, 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 January, the maximum UV index in Uliastay typically reaches 2, which falls under the low exposure category.

Data source: Uliastay January 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 January Weather in Uliastay Compares to Other Months

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

This table compares monthly weather conditions in Uliastay, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-23°C (-9°F)	4 mm (0.1 inches)	98%	low
February Weather	-19°C (-2°F)	7 mm (0.3 inches)	94%	moderate
March Weather	-9°C (16°F)	10 mm (0.4 inches)	88%	high
April Weather	2°C (36°F)	20 mm (0.8 inches)	74%	high
May Weather	9°C (48°F)	19 mm (0.8 inches)	50%	very high
June Weather	15°C (59°F)	31 mm (1.2 inches)	48%	very high
July Weather	17°C (62°F)	62 mm (2.5 inches)	49%	very high
August Weather	14°C (57°F)	64 mm (2.5 inches)	54%	very high
September Weather	8°C (47°F)	26 mm (1.0 inches)	59%	high
October Weather	-2°C (28°F)	18 mm (0.7 inches)	67%	moderate
November Weather	-12°C (10°F)	10 mm (0.4 inches)	86%	moderate
December Weather	-21°C (-6°F)	6 mm (0.2 inches)	96%	low