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Monthly climate in Hangzhou, China

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hangzhou features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (43 °F) and 30 °C (86 °F) through the year, but rarely can drop to -9 °C (16 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 1579 mm (62.2 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually. Hangzhou enjoys an average of 2807 hours of sunshine throughout the year, and daylight varies from 10 hours 13 minutes to 14 hours 2 minutes per day.

Monthly average temperatures in Hangzhou, China

The warmest months in Hangzhou are July, August and September, with daily mean temperatures ranging from 26 to 30 °C (78 - 86 °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 - 47 °F) throughout the day. On average each year, Hangzhou experiences 139 days above 25 °C (77.0 °F) and 11 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hangzhou. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum24°C
(75°F)		27°C
(80°F)		29°C
(85°F)		34°C
(94°F)		38°C
(101°F)		37°C
(99°F)		41°C
(106°F)		40°C
(103°F)		36°C
(98°F)		35°C
(95°F)		31°C
(89°F)		23°C
(74°F)
Mean maximum19°C
(67°F)		22°C
(72°F)		27°C
(82°F)		31°C
(88°F)		35°C
(95°F)		34°C
(94°F)		38°C
(102°F)		38°C
(100°F)		35°C
(96°F)		32°C
(90°F)		26°C
(79°F)		19°C
(66°F)
Average high10°C
(50°F)		11°C
(53°F)		17°C
(64°F)		23°C
(73°F)		27°C
(81°F)		29°C
(85°F)		33°C
(92°F)		34°C
(94°F)		30°C
(85°F)		24°C
(75°F)		19°C
(66°F)		12°C
(54°F)
Daily mean6°C
(43°F)		8°C
(46°F)		13°C
(56°F)		18°C
(64°F)		23°C
(73°F)		25°C
(78°F)		29°C
(85°F)		30°C
(86°F)		26°C
(78°F)		20°C
(68°F)		14°C
(58°F)		8°C
(47°F)
Average low3°C
(38°F)		4°C
(40°F)		9°C
(49°F)		13°C
(56°F)		18°C
(66°F)		22°C
(72°F)		26°C
(79°F)		27°C
(80°F)		22°C
(73°F)		16°C
(62°F)		11°C
(52°F)		5°C
(40°F)
Mean minimum-4°C
(24°F)		-1°C
(30°F)		4°C
(39°F)		6°C
(43°F)		13°C
(56°F)		19°C
(66°F)		23°C
(74°F)		23°C
(74°F)		18°C
(64°F)		10°C
(50°F)		5°C
(41°F)		-2°C
(29°F)
Minimum-9°C
(16°F)		-4°C
(25°F)		2°C
(35°F)		4°C
(40°F)		11°C
(52°F)		17°C
(62°F)		22°C
(71°F)		18°C
(65°F)		16°C
(62°F)		9°C
(48°F)		1°C
(35°F)		-4°C
(25°F)

Compare climate in Hangzhou with other places

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

Monthly average precipitation in Hangzhou, China

Hangzhou usually has the most precipitation in May, June and July, with an average of 15 rainy days and 248 mm (9.8 inches) of precipitation per month. The driest months in Hangzhou are October, November and December. On average, 61 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hangzhou. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)79 (3.1)68 (2.7)119 (4.7)89 (3.5)165 (6.5)348 (13.7)233 (9.2)163 (6.4)133 (5.2)56 (2.2)60 (2.4)66 (2.6)
Average precipitation days (≥ 1 mm)9914101218171413698

Monthly sunshine hours in Hangzhou, China

The sunniest months in Hangzhou are May, July and August, when the sun shines an average of 9 hours 21 minutes a day. Least sunny months in Hangzhou: January, February and December receive an average of 6 hours 0 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hangzhou. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours141194210248273247284312242226214210
Mean daily daylight hours10h 25m11h 6m11h 59m12h 54m13h 40m14h 2m13h 51m13h 11m12h 19m11h 24m10h 37m10h 13m

Solar UV radiation in Hangzhou, China

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

Average daily maximum UV levels by month for Hangzhou. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)569101111111110864