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Monthly climate in Caiyuan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Caiyuan features a humid continental climate (Dwb). Temperatures typically range between -13 °C (10 °F) and 24 °C (75 °F) through the year, but rarely can drop to -32 °C (-25 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 954 mm (37.5 inches) and receives 104 rainy days on the 1 mm (0.04 inches) threshold annually. Caiyuan enjoys an average of 3248 hours of sunshine throughout the year, and daylight varies from 9 hours 14 minutes to 15 hours 5 minutes per day.

Monthly average temperatures in Caiyuan, China

The warmest months in Caiyuan are June, July and August, with daily mean temperatures ranging from 19 to 24 °C (67 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -13 to -9 °C (10 - 16 °F) throughout the day. On average each year, Caiyuan experiences 62 days above 25 °C (77.0 °F) and 151 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Caiyuan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(42°F)		10°C
(50°F)		18°C
(64°F)		26°C
(79°F)		30°C
(87°F)		31°C
(88°F)		36°C
(96°F)		36°C
(98°F)		29°C
(85°F)		27°C
(81°F)		17°C
(64°F)		6°C
(42°F)
Mean maximum2°C
(36°F)		6°C
(44°F)		15°C
(59°F)		24°C
(75°F)		28°C
(82°F)		29°C
(85°F)		34°C
(93°F)		32°C
(90°F)		28°C
(82°F)		23°C
(74°F)		16°C
(61°F)		3°C
(38°F)
Average high-6°C
(22°F)		-2°C
(28°F)		7°C
(45°F)		15°C
(59°F)		20°C
(68°F)		24°C
(76°F)		28°C
(83°F)		27°C
(80°F)		23°C
(73°F)		15°C
(59°F)		5°C
(41°F)		-5°C
(24°F)
Daily mean-13°C
(10°F)		-9°C
(16°F)		1°C
(35°F)		9°C
(48°F)		14°C
(58°F)		19°C
(67°F)		24°C
(75°F)		22°C
(72°F)		17°C
(62°F)		8°C
(47°F)		-0°C
(32°F)		-10°C
(13°F)
Average low-19°C
(-1°F)		-16°C
(4°F)		-4°C
(24°F)		2°C
(36°F)		8°C
(47°F)		14°C
(58°F)		20°C
(67°F)		19°C
(66°F)		12°C
(53°F)		2°C
(37°F)		-5°C
(23°F)		-16°C
(3°F)
Mean minimum-27°C
(-16°F)		-25°C
(-13°F)		-14°C
(7°F)		-4°C
(25°F)		2°C
(35°F)		9°C
(48°F)		15°C
(59°F)		13°C
(55°F)		5°C
(42°F)		-4°C
(24°F)		-16°C
(3°F)		-27°C
(-16°F)
Minimum-30°C
(-22°F)		-28°C
(-17°F)		-19°C
(-1°F)		-6°C
(22°F)		-1°C
(30°F)		6°C
(42°F)		13°C
(55°F)		7°C
(44°F)		2°C
(35°F)		-6°C
(22°F)		-22°C
(-8°F)		-32°C
(-25°F)

Compare climate in Caiyuan with other places

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

Monthly average precipitation in Caiyuan, China

Caiyuan usually has the most precipitation in May, July and August, with an average of 15 rainy days and 166 mm (6.6 inches) of precipitation per month. The driest months in Caiyuan are January, February and December. On average, 18 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caiyuan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)11 (0.4)24 (1.0)28 (1.1)54 (2.1)108 (4.3)101 (4.0)121 (4.8)270 (10.6)90 (3.5)68 (2.7)58 (2.3)19 (0.7)
Average precipitation days (≥ 1 mm)2466121216199774

Monthly sunshine hours in Caiyuan, China

The sunniest months in Caiyuan are May, June and July, when the sun shines an average of 10 hours 20 minutes a day. Least sunny months in Caiyuan: January, November and December receive an average of 7 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caiyuan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours198236278284308317325294280264227230
Mean daily daylight hours9h 33m10h 36m11h 56m13h 19m14h 29m15h 5m14h 47m13h 45m12h 26m11h 4m9h 51m9h 14m

Solar UV radiation in Caiyuan, China

Caiyuan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February 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 Caiyuan UV Index data.

Average daily maximum UV levels by month for Caiyuan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)23688910108632