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Monthly climate in Bulgan, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bulgan features a cold semi-arid climate (BSk). Temperatures typically range between -16 °C (3 °F) and 18 °C (65 °F) through the year, but rarely can drop to -33 °C (-27 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 143 mm (5.6 inches) and receives 26 rainy days on the 1 mm (0.04 inches) threshold annually. Bulgan enjoys an average of 3865 hours of sunshine throughout the year, and daylight varies from 8 hours 50 minutes to 15 hours 30 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 16 to 18 °C (61 - 65 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -16 to -12 °C (3 - 10 °F) throughout the day. On average each year, Bulgan experiences 13 days above 25 °C (77.0 °F) and 192 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-1°C
(30°F)		8°C
(47°F)		12°C
(54°F)		22°C
(72°F)		26°C
(78°F)		28°C
(83°F)		30°C
(87°F)		27°C
(80°F)		25°C
(77°F)		20°C
(68°F)		10°C
(51°F)		0°C
(32°F)
Mean maximum-4°C
(25°F)		2°C
(36°F)		8°C
(46°F)		18°C
(65°F)		24°C
(76°F)		25°C
(78°F)		28°C
(83°F)		26°C
(79°F)		22°C
(72°F)		14°C
(57°F)		6°C
(44°F)		-2°C
(29°F)
Average high-11°C
(13°F)		-7°C
(20°F)		2°C
(36°F)		9°C
(49°F)		15°C
(60°F)		21°C
(71°F)		23°C
(74°F)		21°C
(70°F)		16°C
(61°F)		6°C
(43°F)		-2°C
(28°F)		-10°C
(15°F)
Daily mean-16°C
(3°F)		-12°C
(10°F)		-4°C
(25°F)		4°C
(39°F)		10°C
(51°F)		16°C
(62°F)		18°C
(65°F)		16°C
(61°F)		11°C
(51°F)		1°C
(34°F)		-8°C
(18°F)		-15°C
(5°F)
Average low-20°C
(-4°F)		-17°C
(2°F)		-9°C
(15°F)		-2°C
(29°F)		4°C
(40°F)		10°C
(51°F)		13°C
(55°F)		11°C
(52°F)		6°C
(42°F)		-4°C
(25°F)		-12°C
(11°F)		-19°C
(-2°F)
Mean minimum-28°C
(-18°F)		-25°C
(-12°F)		-17°C
(1°F)		-12°C
(11°F)		-6°C
(21°F)		4°C
(40°F)		8°C
(47°F)		5°C
(42°F)		-3°C
(27°F)		-12°C
(11°F)		-22°C
(-7°F)		-26°C
(-15°F)
Minimum-33°C
(-27°F)		-31°C
(-24°F)		-19°C
(-2°F)		-18°C
(-0°F)		-15°C
(6°F)		0°C
(33°F)		5°C
(42°F)		3°C
(38°F)		-7°C
(20°F)		-16°C
(4°F)		-24°C
(-11°F)		-31°C
(-23°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 May, July and August, with an average of 5 rainy days and 29 mm (1.1 inches) of precipitation per month. The driest months in Bulgan are January, November and December. On average, 2 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)2 (0.1)3 (0.1)10 (0.4)11 (0.4)16 (0.6)13 (0.5)41 (1.6)30 (1.2)11 (0.4)4 (0.2)3 (0.1)1 (0.0)
Average precipitation days (≥ 1 mm)002233753100

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 18 minutes a day. Least sunny months in Bulgan: January, November and December receive an average of 8 hours 11 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 hours215277338345378371383366335317273264
Mean daily daylight hours9h 12m10h 24m11h 55m13h 29m14h 49m15h 30m15h 9m13h 59m12h 29m10h 56m9h 33m8h 50m

Solar UV radiation in Bulgan, Mongolia

Bulgan experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme 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 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)24610111111108532