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Monthly climate in Oldziyt, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Oldziyt features a cold desert climate (BWk). Temperatures typically range between -16 °C (3 °F) and 25 °C (76 °F) through the year, but rarely can drop to -34 °C (-29 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 145 mm (5.7 inches) and receives 24 rainy days on the 1 mm (0.04 inches) threshold annually. Oldziyt enjoys an average of 3694 hours of sunshine throughout the year, and daylight varies from 8 hours 51 minutes to 15 hours 29 minutes per day.

Monthly average temperatures in Oldziyt, Mongolia

The warmest months in Oldziyt are June, July and August, with daily mean temperatures ranging from 21 to 25 °C (69 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -16 to -11 °C (3 - 12 °F) throughout the day. On average each year, Oldziyt experiences 74 days above 25 °C (77.0 °F) and 167 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oldziyt. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-1°C
(31°F)		10°C
(50°F)		21°C
(70°F)		30°C
(87°F)		36°C
(96°F)		37°C
(98°F)		38°C
(101°F)		37°C
(98°F)		31°C
(88°F)		30°C
(86°F)		15°C
(58°F)		5°C
(42°F)
Mean maximum-3°C
(27°F)		5°C
(42°F)		17°C
(62°F)		27°C
(80°F)		33°C
(91°F)		33°C
(91°F)		36°C
(97°F)		34°C
(94°F)		29°C
(84°F)		23°C
(73°F)		13°C
(55°F)		-1°C
(30°F)
Average high-11°C
(13°F)		-5°C
(23°F)		6°C
(44°F)		15°C
(58°F)		22°C
(71°F)		27°C
(82°F)		30°C
(86°F)		26°C
(78°F)		22°C
(72°F)		11°C
(52°F)		0°C
(33°F)		-10°C
(15°F)
Daily mean-16°C
(3°F)		-11°C
(12°F)		-0°C
(32°F)		8°C
(47°F)		16°C
(60°F)		22°C
(72°F)		25°C
(76°F)		21°C
(69°F)		16°C
(61°F)		5°C
(41°F)		-6°C
(22°F)		-15°C
(6°F)
Average low-21°C
(-5°F)		-17°C
(1°F)		-7°C
(20°F)		2°C
(36°F)		9°C
(48°F)		16°C
(60°F)		19°C
(66°F)		16°C
(60°F)		10°C
(50°F)		-1°C
(31°F)		-11°C
(13°F)		-19°C
(-2°F)
Mean minimum-29°C
(-21°F)		-26°C
(-14°F)		-15°C
(6°F)		-7°C
(19°F)		-2°C
(29°F)		8°C
(47°F)		12°C
(55°F)		10°C
(50°F)		1°C
(35°F)		-9°C
(16°F)		-21°C
(-6°F)		-29°C
(-20°F)
Minimum-34°C
(-29°F)		-29°C
(-20°F)		-18°C
(0°F)		-12°C
(10°F)		-4°C
(26°F)		3°C
(38°F)		11°C
(52°F)		7°C
(45°F)		-2°C
(29°F)		-12°C
(11°F)		-23°C
(-9°F)		-33°C
(-26°F)

Compare climate in Oldziyt with other places

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

Monthly average precipitation in Oldziyt, Mongolia

Oldziyt usually has the most precipitation in May, July and August, with an average of 5 rainy days and 34 mm (1.3 inches) of precipitation per month. The driest months in Oldziyt are January, February and December. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oldziyt. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)1 (0.0)3 (0.1)5 (0.2)4 (0.2)14 (0.5)11 (0.4)29 (1.2)58 (2.3)11 (0.4)6 (0.2)3 (0.1)1 (0.0)
Average precipitation days (≥ 1 mm)001123772100

Monthly sunshine hours in Oldziyt, Mongolia

The sunniest months in Oldziyt are May, June and July, when the sun shines an average of 11 hours 46 minutes a day. Least sunny months in Oldziyt: January, November and December receive an average of 8 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oldziyt. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours214270319323357354371351314292264260
Mean daily daylight hours9h 13m10h 25m11h 55m13h 29m14h 49m15h 29m15h 9m13h 58m12h 29m10h 56m9h 34m8h 51m

Solar UV radiation in Oldziyt, Mongolia

Oldziyt experiences the highest level of ultraviolet (UV) radiation in June, 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, February 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 Oldziyt UV Index data.

Average daily maximum UV levels by month for Oldziyt. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235891010107532