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Monthly climate in Caiyu, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Caiyu features a humid continental climate (Dwa). Temperatures typically range between -3 °C (27 °F) and 28 °C (82 °F) through the year, but rarely can drop to -19 °C (-1 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 539 mm (21.2 inches) and receives 52 rainy days on the 1 mm (0.04 inches) threshold annually. Caiyu enjoys an average of 3295 hours of sunshine throughout the year, and daylight varies from 9 hours 23 minutes to 14 hours 55 minutes per day.

Monthly average temperatures in Caiyu, China

The warmest months in Caiyu are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (80 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (27 - 32 °F) throughout the day. On average each year, Caiyu experiences 131 days above 25 °C (77.0 °F) and 107 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Caiyu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(53°F)		23°C
(74°F)		29°C
(84°F)		35°C
(95°F)		39°C
(103°F)		41°C
(106°F)		40°C
(104°F)		38°C
(101°F)		37°C
(99°F)		33°C
(91°F)		25°C
(78°F)		13°C
(55°F)
Mean maximum9°C
(48°F)		15°C
(60°F)		24°C
(75°F)		31°C
(88°F)		36°C
(98°F)		38°C
(101°F)		38°C
(100°F)		36°C
(97°F)		34°C
(93°F)		27°C
(81°F)		20°C
(69°F)		10°C
(50°F)
Average high2°C
(37°F)		6°C
(43°F)		14°C
(58°F)		22°C
(72°F)		29°C
(84°F)		33°C
(92°F)		32°C
(90°F)		31°C
(88°F)		28°C
(83°F)		20°C
(68°F)		12°C
(53°F)		4°C
(39°F)
Daily mean-3°C
(27°F)		-0°C
(32°F)		8°C
(47°F)		16°C
(61°F)		23°C
(73°F)		27°C
(81°F)		28°C
(82°F)		27°C
(80°F)		23°C
(73°F)		14°C
(57°F)		5°C
(42°F)		-2°C
(29°F)
Average low-8°C
(19°F)		-5°C
(23°F)		2°C
(36°F)		9°C
(49°F)		16°C
(60°F)		21°C
(70°F)		23°C
(74°F)		22°C
(72°F)		17°C
(63°F)		8°C
(47°F)		0°C
(33°F)		-6°C
(21°F)
Mean minimum-13°C
(9°F)		-10°C
(14°F)		-5°C
(24°F)		2°C
(36°F)		9°C
(48°F)		15°C
(59°F)		19°C
(67°F)		17°C
(63°F)		12°C
(53°F)		1°C
(34°F)		-6°C
(21°F)		-12°C
(11°F)
Minimum-19°C
(-1°F)		-12°C
(11°F)		-5°C
(22°F)		-0°C
(32°F)		4°C
(39°F)		12°C
(54°F)		18°C
(64°F)		15°C
(60°F)		9°C
(49°F)		-1°C
(31°F)		-9°C
(17°F)		-13°C
(8°F)

Compare climate in Caiyu with other places

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

Monthly average precipitation in Caiyu, China

Caiyu usually has the most precipitation in July, August and September, with an average of 10 rainy days and 127 mm (5.0 inches) of precipitation per month. The driest months in Caiyu are January, February and December. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caiyu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)1 (0.0)6 (0.2)15 (0.6)21 (0.8)21 (0.8)43 (1.7)193 (7.6)133 (5.2)56 (2.2)33 (1.3)13 (0.5)2 (0.1)
Average precipitation days (≥ 1 mm)01323614135410

Monthly sunshine hours in Caiyu, China

The sunniest months in Caiyu are May, June and August, when the sun shines an average of 10 hours 11 minutes a day. Least sunny months in Caiyu: January, February and November receive an average of 7 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caiyu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours207250292292325311293300280256233251
Mean daily daylight hours9h 41m10h 40m11h 57m13h 15m14h 22m14h 55m14h 38m13h 40m12h 25m11h 7m9h 58m9h 23m

Solar UV radiation in Caiyu, China

Caiyu experiences the highest level of ultraviolet (UV) radiation in May, 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 Caiyu UV Index data.

Average daily maximum UV levels by month for Caiyu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2368991097642