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Monthly climate in Bayanbulag, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bayanbulag features a cold semi-arid climate (BSk). Temperatures typically range between -21 °C (-6 °F) and 14 °C (58 °F) through the year, but rarely can drop to -43 °C (-46 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 259 mm (10.2 inches) and receives 51 rainy days on the 1 mm (0.04 inches) threshold annually. Bayanbulag enjoys an average of 3904 hours of sunshine throughout the year, and daylight varies from 8 hours 35 minutes to 15 hours 47 minutes per day.

Monthly average temperatures in Bayanbulag, Mongolia

The warmest months in Bayanbulag are June, July and August, with daily mean temperatures ranging from 12 to 14 °C (54 - 58 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -21 to -17 °C (-6 - 1 °F) throughout the day. On average each year, Bayanbulag experiences 1 days above 25 °C (77.0 °F) and 216 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bayanbulag. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-5°C
(23°F)		4°C
(39°F)		10°C
(51°F)		20°C
(68°F)		22°C
(72°F)		26°C
(79°F)		28°C
(83°F)		24°C
(75°F)		22°C
(72°F)		16°C
(61°F)		7°C
(46°F)		-3°C
(27°F)
Mean maximum-8°C
(18°F)		-2°C
(28°F)		5°C
(41°F)		15°C
(59°F)		21°C
(70°F)		22°C
(72°F)		25°C
(77°F)		22°C
(71°F)		19°C
(66°F)		11°C
(52°F)		4°C
(39°F)		-5°C
(23°F)
Average high-15°C
(5°F)		-11°C
(13°F)		-2°C
(29°F)		6°C
(43°F)		12°C
(54°F)		18°C
(64°F)		19°C
(67°F)		17°C
(63°F)		12°C
(54°F)		3°C
(38°F)		-6°C
(21°F)		-14°C
(7°F)
Daily mean-21°C
(-6°F)		-17°C
(1°F)		-8°C
(17°F)		1°C
(33°F)		7°C
(45°F)		12°C
(54°F)		14°C
(58°F)		12°C
(54°F)		6°C
(44°F)		-3°C
(27°F)		-12°C
(11°F)		-20°C
(-4°F)
Average low-27°C
(-16°F)		-24°C
(-10°F)		-15°C
(6°F)		-5°C
(23°F)		1°C
(34°F)		6°C
(43°F)		9°C
(48°F)		7°C
(45°F)		1°C
(34°F)		-8°C
(18°F)		-17°C
(2°F)		-25°C
(-13°F)
Mean minimum-35°C
(-32°F)		-33°C
(-27°F)		-23°C
(-10°F)		-15°C
(5°F)		-9°C
(17°F)		0°C
(32°F)		4°C
(40°F)		1°C
(34°F)		-7°C
(20°F)		-16°C
(4°F)		-29°C
(-20°F)		-35°C
(-30°F)
Minimum-43°C
(-46°F)		-38°C
(-35°F)		-26°C
(-14°F)		-19°C
(-1°F)		-14°C
(6°F)		-5°C
(24°F)		3°C
(38°F)		-1°C
(30°F)		-11°C
(12°F)		-21°C
(-5°F)		-36°C
(-32°F)		-42°C
(-43°F)

Compare climate in Bayanbulag with other places

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

Monthly average precipitation in Bayanbulag, Mongolia

Bayanbulag usually has the most precipitation in June, July and August, with an average of 10 rainy days and 57 mm (2.2 inches) of precipitation per month. The driest months in Bayanbulag 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 Bayanbulag. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)4 (0.1)9 (0.3)19 (0.7)20 (0.8)37 (1.4)62 (2.4)73 (2.9)20 (0.8)9 (0.3)5 (0.2)2 (0.1)
Average precipitation days (≥ 1 mm)01246811114310

Monthly sunshine hours in Bayanbulag, Mongolia

The sunniest months in Bayanbulag are May, June and July, when the sun shines an average of 12 hours 40 minutes a day. Least sunny months in Bayanbulag: 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 Bayanbulag. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours210277343351387383395369335319271261
Mean daily daylight hours8h 59m10h 17m11h 55m13h 36m15h 2m15h 47m15h 24m14h 7m12h 31m10h 51m9h 22m8h 35m

Solar UV radiation in Bayanbulag, Mongolia

Bayanbulag experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme 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 Bayanbulag UV Index data.

Average daily maximum UV levels by month for Bayanbulag. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2368111010107532