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Monthly climate in Chengtan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chengtan features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (43 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1696 mm (66.8 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Chengtan enjoys an average of 2650 hours of sunshine throughout the year, and daylight varies from 10 hours 16 minutes to 13 hours 59 minutes per day.

Monthly average temperatures in Chengtan, China

The warmest months in Chengtan are July, August and September, with daily mean temperatures ranging from 25 to 28 °C (77 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (43 - 46 °F) throughout the day. On average each year, Chengtan experiences 129 days above 25 °C (77.0 °F) and 16 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chengtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum24°C
(76°F)		27°C
(80°F)		30°C
(86°F)		34°C
(93°F)		39°C
(102°F)		36°C
(98°F)		40°C
(104°F)		38°C
(101°F)		38°C
(100°F)		34°C
(94°F)		29°C
(84°F)		23°C
(74°F)
Mean maximum20°C
(68°F)		22°C
(72°F)		27°C
(80°F)		30°C
(87°F)		34°C
(94°F)		33°C
(92°F)		37°C
(99°F)		36°C
(98°F)		35°C
(95°F)		31°C
(89°F)		25°C
(78°F)		20°C
(68°F)
Average high9°C
(49°F)		11°C
(52°F)		17°C
(62°F)		22°C
(72°F)		26°C
(79°F)		28°C
(82°F)		32°C
(90°F)		33°C
(92°F)		29°C
(84°F)		23°C
(73°F)		18°C
(64°F)		11°C
(53°F)
Daily mean6°C
(43°F)		7°C
(45°F)		12°C
(54°F)		17°C
(62°F)		21°C
(71°F)		24°C
(76°F)		28°C
(82°F)		28°C
(83°F)		25°C
(77°F)		19°C
(66°F)		14°C
(57°F)		8°C
(46°F)
Average low3°C
(37°F)		4°C
(39°F)		8°C
(47°F)		12°C
(54°F)		17°C
(63°F)		21°C
(70°F)		24°C
(76°F)		25°C
(77°F)		21°C
(71°F)		16°C
(60°F)		10°C
(50°F)		4°C
(40°F)
Mean minimum-4°C
(24°F)		-1°C
(30°F)		1°C
(34°F)		4°C
(39°F)		11°C
(52°F)		16°C
(62°F)		22°C
(72°F)		22°C
(72°F)		17°C
(62°F)		9°C
(48°F)		4°C
(40°F)		-3°C
(27°F)
Minimum-7°C
(19°F)		-4°C
(26°F)		-2°C
(29°F)		2°C
(37°F)		8°C
(47°F)		14°C
(58°F)		20°C
(69°F)		20°C
(68°F)		15°C
(59°F)		8°C
(46°F)		0°C
(33°F)		-5°C
(24°F)

Compare climate in Chengtan with other places

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

Monthly average precipitation in Chengtan, China

Chengtan usually has the most precipitation in May, June and July, with an average of 17 rainy days and 271 mm (10.7 inches) of precipitation per month. The driest months in Chengtan are January, November and December. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chengtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)67 (2.7)69 (2.7)126 (4.9)103 (4.0)195 (7.7)329 (13.0)288 (11.3)182 (7.2)124 (4.9)82 (3.2)63 (2.5)67 (2.6)
Average precipitation days (≥ 1 mm)811161314201915149109

Monthly sunshine hours in Chengtan, China

The sunniest months in Chengtan are May, July and August, when the sun shines an average of 8 hours 56 minutes a day. Least sunny months in Chengtan: January, February and December receive an average of 5 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chengtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours137187198243261215266303229210198197
Mean daily daylight hours10h 28m11h 7m11h 59m12h 52m13h 37m13h 59m13h 48m13h 9m12h 18m11h 25m10h 39m10h 16m

Solar UV radiation in Chengtan, China

Chengtan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, November 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 Chengtan UV Index data.

Average daily maximum UV levels by month for Chengtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)6710101112121211865