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Monthly climate in Kunshan, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kunshan features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (42 °F) and 29 °C (85 °F) through the year, but rarely can drop to -8 °C (18 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 1267 mm (49.9 inches) and receives 123 rainy days on the 1 mm (0.04 inches) threshold annually. Kunshan enjoys an average of 2933 hours of sunshine throughout the year, and daylight varies from 10 hours 7 minutes to 14 hours 9 minutes per day.

Monthly average temperatures in Kunshan, China

The warmest months in Kunshan are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (77 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (42 - 46 °F) throughout the day. On average each year, Kunshan experiences 130 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 Kunshan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum21°C
(69°F)		26°C
(78°F)		28°C
(83°F)		32°C
(90°F)		38°C
(100°F)		37°C
(99°F)		43°C
(109°F)		40°C
(104°F)		35°C
(95°F)		33°C
(91°F)		29°C
(84°F)		22°C
(71°F)
Mean maximum17°C
(63°F)		20°C
(69°F)		26°C
(79°F)		29°C
(85°F)		34°C
(93°F)		34°C
(93°F)		38°C
(100°F)		37°C
(98°F)		34°C
(94°F)		30°C
(86°F)		25°C
(77°F)		19°C
(66°F)
Average high9°C
(49°F)		11°C
(52°F)		16°C
(62°F)		21°C
(70°F)		26°C
(80°F)		29°C
(84°F)		32°C
(91°F)		33°C
(92°F)		29°C
(84°F)		23°C
(74°F)		18°C
(65°F)		12°C
(53°F)
Daily mean6°C
(42°F)		7°C
(44°F)		12°C
(53°F)		16°C
(62°F)		22°C
(71°F)		25°C
(77°F)		29°C
(84°F)		29°C
(85°F)		25°C
(77°F)		19°C
(67°F)		14°C
(58°F)		8°C
(46°F)
Average low2°C
(37°F)		3°C
(38°F)		8°C
(46°F)		12°C
(53°F)		17°C
(63°F)		21°C
(71°F)		26°C
(79°F)		26°C
(80°F)		22°C
(72°F)		16°C
(61°F)		10°C
(51°F)		4°C
(39°F)
Mean minimum-5°C
(23°F)		-3°C
(27°F)		2°C
(36°F)		5°C
(41°F)		12°C
(54°F)		18°C
(65°F)		22°C
(72°F)		23°C
(74°F)		17°C
(63°F)		10°C
(50°F)		4°C
(39°F)		-4°C
(26°F)
Minimum-8°C
(18°F)		-5°C
(23°F)		1°C
(33°F)		4°C
(40°F)		9°C
(49°F)		17°C
(62°F)		19°C
(66°F)		20°C
(69°F)		15°C
(60°F)		8°C
(48°F)		1°C
(34°F)		-6°C
(21°F)

Compare climate in Kunshan with other places

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

Monthly average precipitation in Kunshan, China

Kunshan usually has the most precipitation in June, July and August, with an average of 15 rainy days and 196 mm (7.7 inches) of precipitation per month. The driest months in Kunshan are October, November and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kunshan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)57 (2.3)58 (2.3)76 (3.0)72 (2.8)119 (4.7)176 (6.9)247 (9.7)165 (6.5)158 (6.2)48 (1.9)45 (1.8)46 (1.8)
Average precipitation days (≥ 1 mm)781191013161612678

Monthly sunshine hours in Kunshan, China

The sunniest months in Kunshan are May, July and August, when the sun shines an average of 9 hours 22 minutes a day. Least sunny months in Kunshan: January, February and December receive an average of 6 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kunshan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours155209238254281270282307258240220214
Mean daily daylight hours10h 19m11h 3m11h 59m12h 56m13h 45m14h 9m13h 57m13h 15m12h 19m11h 22m10h 32m10h 7m

Solar UV radiation in Kunshan, China

Kunshan experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, 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 Kunshan UV Index data.

Average daily maximum UV levels by month for Kunshan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)568101011111110864