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Monthly climate in Bayan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bayan features a subarctic climate (Dwc). Temperatures typically range between -11 °C (13 °F) and 13 °C (56 °F) through the year, but rarely can drop to -29 °C (-20 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 702 mm (27.7 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Bayan enjoys an average of 3642 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Bayan, China

The warmest months in Bayan are June, July and August, with daily mean temperatures ranging from 11 to 13 °C (51 - 56 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -11 to -8 °C (13 - 19 °F) throughout the day. On average each year, Bayan experiences 0 days above 25 °C (77.0 °F) and 196 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bayan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(46°F)		12°C
(54°F)		16°C
(61°F)		21°C
(70°F)		22°C
(73°F)		21°C
(71°F)		26°C
(79°F)		23°C
(74°F)		21°C
(71°F)		18°C
(65°F)		13°C
(55°F)		5°C
(42°F)
Mean maximum3°C
(38°F)		7°C
(45°F)		13°C
(56°F)		18°C
(64°F)		20°C
(69°F)		20°C
(68°F)		24°C
(75°F)		22°C
(72°F)		19°C
(67°F)		16°C
(61°F)		11°C
(51°F)		3°C
(37°F)
Average high-3°C
(27°F)		0°C
(33°F)		6°C
(42°F)		9°C
(49°F)		13°C
(56°F)		16°C
(60°F)		18°C
(65°F)		17°C
(63°F)		14°C
(58°F)		8°C
(47°F)		3°C
(37°F)		-2°C
(28°F)
Daily mean-11°C
(13°F)		-8°C
(19°F)		-1°C
(30°F)		3°C
(38°F)		7°C
(45°F)		11°C
(51°F)		13°C
(56°F)		12°C
(54°F)		9°C
(48°F)		2°C
(36°F)		-5°C
(24°F)		-10°C
(14°F)
Average low-17°C
(1°F)		-15°C
(6°F)		-8°C
(18°F)		-3°C
(27°F)		1°C
(35°F)		6°C
(43°F)		8°C
(47°F)		8°C
(46°F)		4°C
(40°F)		-3°C
(27°F)		-10°C
(14°F)		-17°C
(2°F)
Mean minimum-23°C
(-8°F)		-21°C
(-6°F)		-16°C
(4°F)		-11°C
(13°F)		-8°C
(19°F)		2°C
(35°F)		4°C
(40°F)		3°C
(38°F)		-1°C
(31°F)		-10°C
(14°F)		-17°C
(1°F)		-22°C
(-7°F)
Minimum-27°C
(-17°F)		-29°C
(-20°F)		-22°C
(-7°F)		-16°C
(3°F)		-15°C
(5°F)		-1°C
(31°F)		3°C
(37°F)		2°C
(35°F)		-2°C
(29°F)		-13°C
(9°F)		-22°C
(-8°F)		-27°C
(-16°F)

Compare climate in Bayan with other places

Compare temperature, precipitation, sunshine, UV index in Bayan, China with other places around the world.

Monthly average precipitation in Bayan, China

Bayan usually has the most precipitation in June, August and September, with an average of 18 rainy days and 118 mm (4.6 inches) of precipitation per month. The driest months in Bayan are January, February and December. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bayan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)8 (0.3)8 (0.3)22 (0.9)55 (2.1)76 (3.0)105 (4.1)102 (4.0)140 (5.5)108 (4.3)59 (2.3)13 (0.5)6 (0.2)
Average precipitation days (≥ 1 mm)2271012181619191232

Monthly sunshine hours in Bayan, China

The sunniest months in Bayan are May, July and August, when the sun shines an average of 10 hours 55 minutes a day. Least sunny months in Bayan: January, February and November receive an average of 8 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bayan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours232282323307334320357325290296286287
Mean daily daylight hours9h 56m10h 49m11h 58m13h 8m14h 7m14h 36m14h 21m13h 30m12h 22m11h 13m10h 12m9h 40m

Solar UV radiation in Bayan, China

Bayan experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Bayan UV Index data.

Average daily maximum UV levels by month for Bayan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)469121314141211864