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Monthly climate in Caotan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Caotan features a humid subtropical climate (Cwa). Temperatures typically range between 18 °C (64 °F) and 30 °C (86 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 35 °C (94 °F). The average annual precipitation amounts to about 1618 mm (63.7 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually. Caotan enjoys an average of 3327 hours of sunshine throughout the year, and daylight varies from 10 hours 51 minutes to 13 hours 22 minutes per day.

Monthly average temperatures in Caotan, China

The warmest months in Caotan are June, July and August, with daily mean temperatures ranging from 29 to 30 °C (84 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 19 °C (64 - 66 °F) throughout the day. On average each year, Caotan experiences 211 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 Caotan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum25°C
(77°F)		27°C
(81°F)		29°C
(85°F)		32°C
(90°F)		34°C
(93°F)		34°C
(93°F)		35°C
(94°F)		34°C
(93°F)		33°C
(91°F)		32°C
(90°F)		29°C
(84°F)		27°C
(81°F)
Mean maximum24°C
(75°F)		25°C
(77°F)		28°C
(83°F)		30°C
(87°F)		32°C
(91°F)		33°C
(91°F)		33°C
(92°F)		33°C
(91°F)		32°C
(91°F)		31°C
(88°F)		28°C
(83°F)		25°C
(78°F)
Average high20°C
(69°F)		21°C
(69°F)		24°C
(76°F)		27°C
(80°F)		30°C
(86°F)		31°C
(89°F)		31°C
(89°F)		31°C
(87°F)		31°C
(87°F)		28°C
(83°F)		25°C
(78°F)		21°C
(70°F)
Daily mean18°C
(64°F)		18°C
(65°F)		22°C
(72°F)		24°C
(76°F)		28°C
(82°F)		30°C
(86°F)		30°C
(85°F)		29°C
(84°F)		28°C
(83°F)		26°C
(79°F)		23°C
(73°F)		19°C
(66°F)
Average low16°C
(61°F)		16°C
(62°F)		20°C
(69°F)		23°C
(73°F)		26°C
(79°F)		28°C
(83°F)		28°C
(83°F)		27°C
(82°F)		27°C
(80°F)		24°C
(75°F)		21°C
(70°F)		17°C
(62°F)
Mean minimum10°C
(50°F)		11°C
(52°F)		16°C
(60°F)		18°C
(64°F)		22°C
(73°F)		26°C
(79°F)		26°C
(80°F)		26°C
(79°F)		25°C
(78°F)		20°C
(69°F)		16°C
(61°F)		11°C
(52°F)
Minimum7°C
(46°F)		7°C
(45°F)		14°C
(57°F)		14°C
(57°F)		18°C
(64°F)		25°C
(77°F)		26°C
(78°F)		26°C
(79°F)		24°C
(76°F)		19°C
(66°F)		14°C
(57°F)		9°C
(48°F)

Compare climate in Caotan with other places

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

Monthly average precipitation in Caotan, China

Caotan usually has the most precipitation in June, July and August, with an average of 21 rainy days and 283 mm (11.1 inches) of precipitation per month. The driest months in Caotan are January, November and December. On average, 22 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Caotan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)24 (0.9)59 (2.3)54 (2.1)109 (4.3)133 (5.2)202 (7.9)237 (9.3)410 (16.1)197 (7.7)150 (5.9)22 (0.9)22 (0.9)
Average precipitation days (≥ 1 mm)46101216182124211345

Monthly sunshine hours in Caotan, China

The sunniest months in Caotan are May, June and July, when the sun shines an average of 10 hours 14 minutes a day. Least sunny months in Caotan: January, February and December receive an average of 7 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Caotan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours196253271279319305317284298282265253
Mean daily daylight hours10h 59m11h 26m12h 1m12h 37m13h 8m13h 22m13h 15m12h 48m12h 14m11h 38m11h 7m10h 51m

Solar UV radiation in Caotan, China

Caotan experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Caotan UV Index data.

Average daily maximum UV levels by month for Caotan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)810121213131314121197