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Monthly climate in Bulgan, Mongolia

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bulgan features a cold desert climate (BWk). Temperatures typically range between -12 °C (10 °F) and 22 °C (73 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 159 mm (6.2 inches) and receives 22 rainy days on the 1 mm (0.04 inches) threshold annually. Bulgan enjoys an average of 3773 hours of sunshine throughout the year, and daylight varies from 8 hours 55 minutes to 15 hours 25 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 20 to 22 °C (68 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -12 to -9 °C (10 - 16 °F) throughout the day. On average each year, Bulgan experiences 59 days above 25 °C (77.0 °F) and 161 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
Maximum3°C
(37°F)		10°C
(49°F)		19°C
(66°F)		27°C
(81°F)		31°C
(88°F)		35°C
(96°F)		36°C
(97°F)		31°C
(89°F)		29°C
(85°F)		28°C
(82°F)		16°C
(61°F)		7°C
(45°F)
Mean maximum1°C
(34°F)		6°C
(43°F)		14°C
(58°F)		24°C
(76°F)		29°C
(85°F)		30°C
(87°F)		34°C
(93°F)		31°C
(88°F)		27°C
(81°F)		21°C
(70°F)		14°C
(57°F)		3°C
(37°F)
Average high-8°C
(19°F)		-4°C
(25°F)		6°C
(43°F)		13°C
(57°F)		20°C
(68°F)		26°C
(78°F)		28°C
(82°F)		25°C
(76°F)		21°C
(70°F)		10°C
(51°F)		2°C
(35°F)		-6°C
(21°F)
Daily mean-12°C
(10°F)		-9°C
(16°F)		-0°C
(32°F)		8°C
(46°F)		14°C
(58°F)		20°C
(69°F)		22°C
(73°F)		20°C
(68°F)		15°C
(60°F)		5°C
(41°F)		-3°C
(26°F)		-11°C
(12°F)
Average low-16°C
(3°F)		-14°C
(7°F)		-6°C
(22°F)		2°C
(36°F)		8°C
(46°F)		14°C
(58°F)		17°C
(63°F)		15°C
(59°F)		10°C
(50°F)		-0°C
(32°F)		-8°C
(19°F)		-14°C
(6°F)
Mean minimum-25°C
(-13°F)		-23°C
(-8°F)		-15°C
(6°F)		-7°C
(20°F)		-2°C
(29°F)		7°C
(45°F)		11°C
(53°F)		9°C
(49°F)		3°C
(38°F)		-7°C
(19°F)		-18°C
(1°F)		-23°C
(-9°F)
Minimum-30°C
(-22°F)		-27°C
(-16°F)		-18°C
(-0°F)		-9°C
(16°F)		-7°C
(20°F)		3°C
(37°F)		10°C
(51°F)		7°C
(44°F)		-1°C
(30°F)		-11°C
(13°F)		-22°C
(-6°F)		-27°C
(-16°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 July, August and September, with an average of 4 rainy days and 35 mm (1.4 inches) of precipitation per month. The driest months in Bulgan are January, October 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)5 (0.2)13 (0.5)7 (0.3)11 (0.4)8 (0.3)52 (2.0)38 (1.5)16 (0.6)3 (0.1)4 (0.1)2 (0.1)
Average precipitation days (≥ 1 mm)013211652010

Monthly sunshine hours in Bulgan, Mongolia

The sunniest months in Bulgan are May, June and July, when the sun shines an average of 11 hours 53 minutes a day. Least sunny months in Bulgan: January, November and December receive an average of 8 hours 12 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 hours216274328330362361369359323307271267
Mean daily daylight hours9h 16m10h 27m11h 56m13h 27m14h 45m15h 25m15h 5m13h 56m12h 28m10h 57m9h 37m8h 55m

Solar UV radiation in Bulgan, Mongolia

Bulgan experiences the highest level of ultraviolet (UV) radiation in May, June 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, 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)2468101110107532