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Monthly climate in Bayan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bayan features a humid continental climate (Dwb). Temperatures typically range between -18 °C (1 °F) and 24 °C (76 °F) through the year, but rarely can drop to -35 °C (-30 °F) or can rise to as high as 36 °C (97 °F). The average annual precipitation amounts to about 781 mm (30.8 inches) and receives 91 rainy days on the 1 mm (0.04 inches) threshold annually. Bayan enjoys an average of 3217 hours of sunshine throughout the year, and daylight varies from 8 hours 41 minutes to 15 hours 40 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 20 to 24 °C (68 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -18 to -13 °C (1 - 8 °F) throughout the day. On average each year, Bayan experiences 59 days above 25 °C (77.0 °F) and 158 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
Maximum-1°C
(30°F)		9°C
(48°F)		19°C
(67°F)		26°C
(80°F)		33°C
(91°F)		36°C
(97°F)		34°C
(94°F)		31°C
(88°F)		29°C
(84°F)		28°C
(83°F)		14°C
(58°F)		7°C
(45°F)
Mean maximum-4°C
(25°F)		3°C
(38°F)		14°C
(58°F)		24°C
(76°F)		30°C
(87°F)		30°C
(86°F)		33°C
(92°F)		30°C
(87°F)		27°C
(81°F)		23°C
(74°F)		13°C
(55°F)		0°C
(33°F)
Average high-12°C
(10°F)		-8°C
(19°F)		3°C
(38°F)		14°C
(57°F)		21°C
(70°F)		24°C
(76°F)		28°C
(83°F)		25°C
(77°F)		21°C
(70°F)		13°C
(56°F)		1°C
(33°F)		-10°C
(14°F)
Daily mean-18°C
(1°F)		-13°C
(8°F)		-2°C
(29°F)		8°C
(46°F)		15°C
(60°F)		20°C
(68°F)		24°C
(76°F)		21°C
(71°F)		16°C
(61°F)		7°C
(45°F)		-4°C
(25°F)		-15°C
(5°F)
Average low-22°C
(-8°F)		-19°C
(-2°F)		-8°C
(18°F)		1°C
(34°F)		9°C
(49°F)		15°C
(60°F)		20°C
(69°F)		18°C
(64°F)		11°C
(52°F)		1°C
(35°F)		-8°C
(18°F)		-19°C
(-2°F)
Mean minimum-28°C
(-19°F)		-28°C
(-18°F)		-19°C
(-2°F)		-6°C
(22°F)		2°C
(37°F)		10°C
(51°F)		15°C
(60°F)		11°C
(52°F)		4°C
(40°F)		-6°C
(22°F)		-17°C
(2°F)		-26°C
(-15°F)
Minimum-35°C
(-30°F)		-34°C
(-28°F)		-26°C
(-15°F)		-9°C
(17°F)		1°C
(34°F)		9°C
(48°F)		14°C
(57°F)		7°C
(45°F)		2°C
(36°F)		-9°C
(17°F)		-22°C
(-7°F)		-29°C
(-20°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 July, August and September, with an average of 14 rainy days and 157 mm (6.2 inches) of precipitation per month. The driest months in Bayan are January, February and December. On average, 8 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)6 (0.2)9 (0.3)19 (0.7)27 (1.1)74 (2.9)115 (4.5)147 (5.8)198 (7.8)125 (4.9)24 (1.0)28 (1.1)10 (0.4)
Average precipitation days (≥ 1 mm)12551014151611552

Monthly sunshine hours in Bayan, China

The sunniest months in Bayan are May, June and July, when the sun shines an average of 10 hours 36 minutes a day. Least sunny months in Bayan: January, November and December receive an average of 6 hours 44 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 hours181235281287319324331285276256214224
Mean daily daylight hours9h 4m10h 19m11h 55m13h 33m14h 57m15h 40m15h 18m14h 4m12h 30m10h 53m9h 26m8h 41m

Solar UV radiation in Bayan, China

Bayan 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 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)235689986421