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Monthly climate in Uldz, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Uldz features a subarctic climate (Dwc). Temperatures typically range between -21 °C (-5 °F) and 19 °C (67 °F) through the year, but rarely can drop to -39 °C (-37 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 392 mm (15.4 inches) and receives 62 rainy days on the 1 mm (0.04 inches) threshold annually. Uldz enjoys an average of 3612 hours of sunshine throughout the year, and daylight varies from 8 hours 20 minutes to 16 hours 3 minutes per day.

Monthly average temperatures in Uldz, Mongolia

The warmest months in Uldz are June, July and August, with daily mean temperatures ranging from 16 to 19 °C (61 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -21 to -17 °C (-5 - 1 °F) throughout the day. On average each year, Uldz experiences 31 days above 25 °C (77.0 °F) and 198 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Uldz. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-2°C
(29°F)		4°C
(39°F)		20°C
(69°F)		28°C
(83°F)		34°C
(93°F)		35°C
(96°F)		35°C
(95°F)		31°C
(88°F)		29°C
(85°F)		24°C
(75°F)		10°C
(50°F)		-1°C
(31°F)
Mean maximum-7°C
(19°F)		-1°C
(31°F)		14°C
(57°F)		24°C
(76°F)		30°C
(86°F)		31°C
(88°F)		32°C
(90°F)		28°C
(82°F)		26°C
(78°F)		18°C
(65°F)		9°C
(48°F)		-4°C
(26°F)
Average high-15°C
(6°F)		-10°C
(13°F)		1°C
(35°F)		11°C
(51°F)		18°C
(64°F)		23°C
(74°F)		25°C
(77°F)		21°C
(70°F)		18°C
(64°F)		8°C
(46°F)		-4°C
(25°F)		-13°C
(9°F)
Daily mean-21°C
(-5°F)		-17°C
(1°F)		-6°C
(22°F)		4°C
(39°F)		11°C
(52°F)		17°C
(63°F)		19°C
(67°F)		16°C
(61°F)		11°C
(52°F)		1°C
(34°F)		-10°C
(15°F)		-18°C
(-0°F)
Average low-26°C
(-14°F)		-24°C
(-11°F)		-12°C
(10°F)		-4°C
(26°F)		3°C
(38°F)		10°C
(50°F)		14°C
(57°F)		11°C
(52°F)		5°C
(41°F)		-5°C
(24°F)		-15°C
(6°F)		-22°C
(-8°F)
Mean minimum-33°C
(-27°F)		-32°C
(-26°F)		-23°C
(-9°F)		-11°C
(13°F)		-4°C
(25°F)		3°C
(38°F)		9°C
(48°F)		5°C
(40°F)		-3°C
(27°F)		-10°C
(13°F)		-26°C
(-14°F)		-31°C
(-24°F)
Minimum-37°C
(-34°F)		-35°C
(-30°F)		-26°C
(-14°F)		-12°C
(10°F)		-6°C
(22°F)		0°C
(33°F)		7°C
(44°F)		-2°C
(29°F)		-6°C
(22°F)		-12°C
(11°F)		-35°C
(-30°F)		-39°C
(-37°F)

Compare climate in Uldz with other places

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

Monthly average precipitation in Uldz, Mongolia

Uldz usually has the most precipitation in June, July and August, with an average of 12 rainy days and 83 mm (3.3 inches) of precipitation per month. The driest months in Uldz are January, February and December. On average, 4 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Uldz. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)6 (0.2)6 (0.2)16 (0.6)33 (1.3)55 (2.1)104 (4.1)92 (3.6)47 (1.8)22 (0.9)6 (0.3)3 (0.1)
Average precipitation days (≥ 1 mm)011361014138420

Monthly sunshine hours in Uldz, Mongolia

The sunniest months in Uldz are May, June and July, when the sun shines an average of 11 hours 47 minutes a day. Least sunny months in Uldz: January, November and December receive an average of 7 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Uldz. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours201264317325358362364330303282255247
Mean daily daylight hours8h 45m10h 9m11h 54m13h 42m15h 15m16h 3m15h 39m14h 16m12h 33m10h 46m9h 10m8h 20m

Solar UV radiation in Uldz, Mongolia

Uldz experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Uldz UV Index data.

Average daily maximum UV levels by month for Uldz. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789886421