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Monthly climate in Changtan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Changtan features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (40 °F) and 29 °C (84 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1140 mm (44.9 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Changtan enjoys an average of 2965 hours of sunshine throughout the year, and daylight varies from 10 hours 9 minutes to 14 hours 6 minutes per day.

Monthly average temperatures in Changtan, China

The warmest months in Changtan are June, July and August, with daily mean temperatures ranging from 26 to 29 °C (79 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 45 °F) throughout the day. On average each year, Changtan experiences 131 days above 25 °C (77.0 °F) and 17 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Changtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(65°F)		27°C
(81°F)		28°C
(83°F)		31°C
(89°F)		34°C
(94°F)		35°C
(96°F)		37°C
(99°F)		37°C
(98°F)		35°C
(96°F)		35°C
(96°F)		27°C
(81°F)		19°C
(66°F)
Mean maximum15°C
(59°F)		20°C
(68°F)		26°C
(79°F)		30°C
(87°F)		33°C
(92°F)		34°C
(93°F)		36°C
(96°F)		36°C
(98°F)		34°C
(94°F)		31°C
(87°F)		25°C
(77°F)		16°C
(62°F)
Average high8°C
(46°F)		11°C
(52°F)		17°C
(63°F)		22°C
(72°F)		26°C
(80°F)		30°C
(86°F)		32°C
(89°F)		33°C
(91°F)		29°C
(84°F)		22°C
(72°F)		18°C
(64°F)		11°C
(52°F)
Daily mean4°C
(40°F)		7°C
(45°F)		13°C
(55°F)		17°C
(64°F)		22°C
(72°F)		26°C
(79°F)		28°C
(83°F)		29°C
(84°F)		25°C
(76°F)		18°C
(64°F)		13°C
(56°F)		7°C
(44°F)
Average low1°C
(35°F)		3°C
(38°F)		9°C
(48°F)		13°C
(56°F)		18°C
(65°F)		22°C
(73°F)		25°C
(78°F)		26°C
(78°F)		21°C
(70°F)		14°C
(58°F)		9°C
(49°F)		3°C
(38°F)
Mean minimum-5°C
(24°F)		-2°C
(29°F)		3°C
(38°F)		7°C
(45°F)		13°C
(56°F)		18°C
(65°F)		22°C
(72°F)		21°C
(70°F)		17°C
(62°F)		9°C
(49°F)		3°C
(38°F)		-2°C
(28°F)
Minimum-11°C
(13°F)		-4°C
(25°F)		2°C
(36°F)		5°C
(42°F)		12°C
(53°F)		15°C
(60°F)		21°C
(70°F)		18°C
(65°F)		16°C
(60°F)		9°C
(48°F)		3°C
(37°F)		-4°C
(25°F)

Compare climate in Changtan with other places

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

Monthly average precipitation in Changtan, China

Changtan usually has the most precipitation in May, June and July, with an average of 12 rainy days and 185 mm (7.3 inches) of precipitation per month. The driest months in Changtan are January, February and December. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Changtan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)40 (1.6)35 (1.4)85 (3.4)104 (4.1)151 (6.0)196 (7.7)207 (8.2)114 (4.5)89 (3.5)61 (2.4)40 (1.6)16 (0.6)
Average precipitation days (≥ 1 mm)561191113141510874

Monthly sunshine hours in Changtan, China

The sunniest months in Changtan are June, July and August, when the sun shines an average of 9 hours 36 minutes a day. Least sunny months in Changtan: January, October and November receive an average of 6 hours 42 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Changtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours182224245241273278296308250212221230
Mean daily daylight hours10h 22m11h 4m11h 59m12h 55m13h 43m14h 6m13h 54m13h 13m12h 19m11h 23m10h 34m10h 9m

Solar UV radiation in Changtan, China

Changtan experiences the highest level of ultraviolet (UV) radiation in May, July and August, 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 exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Changtan UV Index data.

Average daily maximum UV levels by month for Changtan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)55891111121110864