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Monthly climate in Caiyuan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Caiyuan features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (47 °F) and 28 °C (82 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 30 °C (87 °F). The average annual precipitation amounts to about 1403 mm (55.2 inches) and receives 118 rainy days on the 1 mm (0.04 inches) threshold annually. Caiyuan enjoys an average of 3011 hours of sunshine throughout the year, and daylight varies from 10 hours 10 minutes to 14 hours 5 minutes per day.

Monthly average temperatures in Caiyuan, China

The warmest months in Caiyuan are July, August and September, with daily mean temperatures ranging from 25 to 28 °C (78 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 8 to 11 °C (47 - 52 °F) throughout the day. On average each year, Caiyuan experiences 74 days above 25 °C (77.0 °F) and 0 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
Maximum16°C
(62°F)		14°C
(57°F)		16°C
(61°F)		19°C
(66°F)		24°C
(75°F)		28°C
(82°F)		30°C
(86°F)		30°C
(87°F)		29°C
(84°F)		27°C
(82°F)		22°C
(72°F)		19°C
(67°F)
Mean maximum13°C
(56°F)		13°C
(55°F)		15°C
(59°F)		18°C
(65°F)		22°C
(73°F)		25°C
(78°F)		29°C
(84°F)		30°C
(85°F)		28°C
(83°F)		25°C
(78°F)		21°C
(70°F)		17°C
(63°F)
Average high9°C
(49°F)		9°C
(49°F)		12°C
(53°F)		15°C
(60°F)		20°C
(68°F)		23°C
(74°F)		27°C
(80°F)		28°C
(83°F)		26°C
(79°F)		22°C
(72°F)		18°C
(64°F)		13°C
(55°F)
Daily mean8°C
(47°F)		8°C
(47°F)		11°C
(52°F)		14°C
(58°F)		19°C
(67°F)		23°C
(73°F)		26°C
(79°F)		28°C
(82°F)		25°C
(78°F)		21°C
(71°F)		17°C
(63°F)		12°C
(53°F)
Average low7°C
(45°F)		7°C
(45°F)		10°C
(50°F)		14°C
(57°F)		18°C
(65°F)		22°C
(72°F)		26°C
(78°F)		27°C
(81°F)		25°C
(77°F)		21°C
(69°F)		16°C
(61°F)		10°C
(51°F)
Mean minimum2°C
(36°F)		3°C
(38°F)		6°C
(44°F)		10°C
(50°F)		15°C
(60°F)		20°C
(68°F)		23°C
(74°F)		26°C
(78°F)		22°C
(72°F)		17°C
(62°F)		11°C
(53°F)		4°C
(40°F)
Minimum-3°C
(27°F)		2°C
(35°F)		5°C
(41°F)		9°C
(49°F)		13°C
(57°F)		19°C
(67°F)		22°C
(71°F)		24°C
(76°F)		21°C
(69°F)		16°C
(60°F)		8°C
(47°F)		-1°C
(31°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 June, July and September, with an average of 11 rainy days and 193 mm (7.6 inches) of precipitation per month. The driest months in Caiyuan are January, February and December. On average, 66 mm (2.6 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)63 (2.5)70 (2.7)101 (4.0)82 (3.2)141 (5.6)231 (9.1)189 (7.4)119 (4.7)159 (6.3)109 (4.3)73 (2.9)67 (2.6)
Average precipitation days (≥ 1 mm)791381014109118910

Monthly sunshine hours in Caiyuan, China

The sunniest months in Caiyuan are May, July and August, when the sun shines an average of 9 hours 52 minutes a day. Least sunny months in Caiyuan: January, February and December receive an average of 6 hours 12 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 hours155211249273292274304320262249218198
Mean daily daylight hours10h 23m11h 5m11h 59m12h 55m13h 41m14h 5m13h 53m13h 12m12h 19m11h 23m10h 35m10h 10m

Solar UV radiation in Caiyuan, China

Caiyuan experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 12, 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 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)568101112111010864