Hangzhou Climate & Weather

Briefing
Hangzhou's climate is Humid Subtropical with four distinctive seasons, characterised by long, very hot, humid summers and short, chilly, cloudy and dry winters (with occasional snow). The average annual temperature is 16.5°C (61.7°F), ranging from 4.3°C (39.7°F) in January to 28.4°C (83.1°F) in July. The city receives an average annual rainfall of 1,450 millimetres (57.1 in) and is affected by the Plum Rains of the Asian Monsoon in June. In late summer (August to September), Hangzhou, along with other cities in Zhejiang province, suffer typhoon storms, but typhoons seldom strike it directly. Generally they make landfall along the southern coast of Zhejiang, and affect Hangzhou with strong winds and stormy rains. During this period, you should bring an umbrella with you. Even if it does not rain, an umbrella is also a nice prop for photos you take at the West Lake. September and October feature excellent weather when clear skies and bracing air can be enjoyed almost every day. In Winter, on the other hand, the city suffers severe cold since most places are not equipped with heating systems. However, Hangzhou is still a tourist capital of China; many travellers pour into the city, their numbers peaking during holidays and weekends.
 

Climate Data Table for Hangzhou
                Month
   Item
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
maximum
temperature
(℃)
7.4
9.1
13.8
20.6
25.6
28.3
33.3
32.7
27.2
22.7
17.1
10.5
minimum
temperature
(℃)
0.56
1.7
5.6
11.3
16.6
21.1
25.2
24.5
20.6
13.8
8.5
2.7
Rainfall (mm)
73.9
84.6
139.1
127.0
142.2
231.1
159.3
156.1
145.6
87.0
60.5
46.2
Days of rainfall
2.6
3.6
4.7
5.2
6.4
8
5.2
6.1
7.1
2.9
2.3
1.5
 

Tips for Hangzhou Weather
► Best time to visit Hangzhou:
Spring is the best seasons to visit Hangzhou. Colorful blossom, fresh air, green trees along the road and the clean street in drizzle days, Spring is an ideal time for foreign visitors to Hangzhou.  
 
► Try to Avoid domestic travel seasons
Try to plan your Hangzhou tour to avoid the peak holidays. Because they are popular with Chinese tourists, Hangzhou attractions become more crowded in these periods.
 
The most crowded seasons in China are Chinese Spring Festival (usually in late Jan or early Feb.), International Labor Day (May 01 to 03) and National Day (Oct 01-07). Spring Festival and the National Day golden week are the most crowded time for travelling.