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Monthly climate in Bulgan, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bulgan features a subarctic climate (Dwc). Temperatures typically range between -22 °C (-7 °F) and 16 °C (61 °F) through the year, but rarely can drop to -39 °C (-37 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 528 mm (20.8 inches) and receives 86 rainy days on the 1 mm (0.04 inches) threshold annually. Bulgan enjoys an average of 3761 hours of sunshine throughout the year, and daylight varies from 8 hours 3 minutes to 16 hours 21 minutes per day.

Monthly average temperatures in Bulgan, Mongolia

The warmest months in Bulgan are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (57 - 61 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -22 to -17 °C (-7 - 1 °F) throughout the day. On average each year, Bulgan experiences 7 days above 25 °C (77.0 °F) and 212 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bulgan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum-5°C
(24°F)		7°C
(45°F)		15°C
(59°F)		25°C
(78°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		25°C
(78°F)		25°C
(77°F)		18°C
(65°F)		7°C
(45°F)		2°C
(36°F)
Mean maximum-9°C
(17°F)		0°C
(32°F)		11°C
(51°F)		20°C
(69°F)		26°C
(80°F)		27°C
(81°F)		27°C
(81°F)		24°C
(75°F)		22°C
(71°F)		14°C
(57°F)		6°C
(43°F)		-3°C
(26°F)
Average high-16°C
(4°F)		-10°C
(14°F)		1°C
(34°F)		9°C
(49°F)		16°C
(60°F)		21°C
(69°F)		22°C
(71°F)		19°C
(67°F)		15°C
(59°F)		6°C
(43°F)		-5°C
(23°F)		-13°C
(8°F)
Daily mean-22°C
(-7°F)		-17°C
(1°F)		-7°C
(20°F)		3°C
(37°F)		9°C
(48°F)		14°C
(58°F)		16°C
(61°F)		14°C
(57°F)		8°C
(46°F)		-1°C
(30°F)		-11°C
(13°F)		-19°C
(-2°F)
Average low-27°C
(-16°F)		-24°C
(-11°F)		-14°C
(7°F)		-4°C
(26°F)		1°C
(35°F)		7°C
(45°F)		11°C
(51°F)		9°C
(48°F)		2°C
(36°F)		-6°C
(21°F)		-16°C
(4°F)		-23°C
(-9°F)
Mean minimum-35°C
(-31°F)		-32°C
(-25°F)		-24°C
(-11°F)		-10°C
(13°F)		-6°C
(21°F)		2°C
(36°F)		7°C
(44°F)		3°C
(37°F)		-5°C
(23°F)		-13°C
(8°F)		-24°C
(-11°F)		-33°C
(-27°F)
Minimum-39°C
(-37°F)		-36°C
(-32°F)		-29°C
(-19°F)		-15°C
(5°F)		-9°C
(15°F)		-1°C
(30°F)		5°C
(41°F)		0°C
(33°F)		-5°C
(23°F)		-17°C
(1°F)		-27°C
(-15°F)		-37°C
(-34°F)

Compare climate in Bulgan with other places

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

Monthly average precipitation in Bulgan, Mongolia

Bulgan usually has the most precipitation in June, July and August, with an average of 16 rainy days and 116 mm (4.6 inches) of precipitation per month. The driest months in Bulgan are January, February and December. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bulgan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)3 (0.1)3 (0.1)13 (0.5)26 (1.0)43 (1.7)78 (3.1)127 (5.0)143 (5.6)51 (2.0)28 (1.1)11 (0.5)2 (0.1)
Average precipitation days (≥ 1 mm)0037101318179540

Monthly sunshine hours in Bulgan, Mongolia

The sunniest months in Bulgan are May, June and July, when the sun shines an average of 12 hours 37 minutes a day. Least sunny months in Bulgan: January, November and December receive an average of 7 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bulgan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours195266334344393389379350313300250242
Mean daily daylight hours8h 31m10h 2m11h 54m13h 49m15h 29m16h 21m15h 55m14h 25m12h 35m10h 40m8h 58m8h 3m

Solar UV radiation in Bulgan, Mongolia

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

Average daily maximum UV levels by month for Bulgan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689986421