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Monthly climate in Uyonch, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Uyonch features a cold desert climate (BWk). Temperatures typically range between -17 °C (2 °F) and 21 °C (70 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 124 mm (4.9 inches) and receives 25 rainy days on the 1 mm (0.04 inches) threshold annually. Uyonch enjoys an average of 3960 hours of sunshine throughout the year, and daylight varies from 8 hours 41 minutes to 15 hours 40 minutes per day.

Monthly average temperatures in Uyonch, Mongolia

The warmest months in Uyonch are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (66 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -17 to -12 °C (2 - 10 °F) throughout the day. On average each year, Uyonch experiences 44 days above 25 °C (77.0 °F) and 178 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Uyonch. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-1°C
(30°F)		5°C
(41°F)		17°C
(62°F)		27°C
(81°F)		30°C
(86°F)		31°C
(89°F)		33°C
(92°F)		31°C
(88°F)		27°C
(81°F)		18°C
(65°F)		12°C
(54°F)		2°C
(36°F)
Mean maximum-4°C
(25°F)		1°C
(34°F)		10°C
(51°F)		21°C
(71°F)		28°C
(82°F)		29°C
(84°F)		31°C
(89°F)		29°C
(85°F)		26°C
(78°F)		16°C
(60°F)		9°C
(48°F)		-2°C
(28°F)
Average high-11°C
(12°F)		-6°C
(21°F)		2°C
(36°F)		12°C
(54°F)		19°C
(66°F)		24°C
(75°F)		26°C
(79°F)		24°C
(76°F)		18°C
(65°F)		8°C
(47°F)		-3°C
(27°F)		-10°C
(14°F)
Daily mean-17°C
(2°F)		-12°C
(10°F)		-3°C
(26°F)		7°C
(44°F)		13°C
(56°F)		19°C
(66°F)		21°C
(70°F)		19°C
(66°F)		12°C
(54°F)		3°C
(37°F)		-8°C
(18°F)		-15°C
(5°F)
Average low-21°C
(-6°F)		-18°C
(0°F)		-9°C
(15°F)		0°C
(33°F)		7°C
(45°F)		13°C
(55°F)		15°C
(59°F)		13°C
(56°F)		6°C
(43°F)		-3°C
(27°F)		-13°C
(10°F)		-20°C
(-3°F)
Mean minimum-29°C
(-20°F)		-25°C
(-13°F)		-18°C
(-1°F)		-10°C
(15°F)		-2°C
(30°F)		7°C
(45°F)		9°C
(49°F)		7°C
(44°F)		-3°C
(26°F)		-11°C
(13°F)		-22°C
(-7°F)		-26°C
(-14°F)
Minimum-33°C
(-27°F)		-28°C
(-18°F)		-23°C
(-9°F)		-12°C
(10°F)		-5°C
(23°F)		2°C
(36°F)		8°C
(47°F)		5°C
(42°F)		-7°C
(19°F)		-13°C
(8°F)		-27°C
(-16°F)		-31°C
(-24°F)

Compare climate in Uyonch with other places

Compare temperature, precipitation, sunshine, UV index in Uyonch, Mongolia with other places around the world.

Monthly average precipitation in Uyonch, Mongolia

Uyonch usually has the most precipitation in May, June and August, with an average of 3 rainy days and 18 mm (0.7 inches) of precipitation per month. The driest months in Uyonch are January, February and December. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Uyonch. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)4 (0.1)6 (0.2)6 (0.2)8 (0.3)19 (0.8)17 (0.7)15 (0.6)20 (0.8)9 (0.4)9 (0.4)8 (0.3)4 (0.2)
Average precipitation days (≥ 1 mm)111143333221

Monthly sunshine hours in Uyonch, Mongolia

The sunniest months in Uyonch are May, June and July, when the sun shines an average of 12 hours 58 minutes a day. Least sunny months in Uyonch: January, November and December receive an average of 8 hours 4 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Uyonch. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours209271341360391391411381346322271262
Mean daily daylight hours9h 4m10h 20m11h 55m13h 33m14h 57m15h 40m15h 18m14h 4m12h 30m10h 53m9h 26m8h 41m

Solar UV radiation in Uyonch, Mongolia

Uyonch experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Uyonch UV Index data.

Average daily maximum UV levels by month for Uyonch. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2468101010107532