Hangzhou weather in May
In May, Hangzhou has an average high of 27 °C81 °F and an average low of 16 °C61 °F, with about 124 mm4.9 in of precipitation. It is the 5th warmest month of the year and ranks 5th for precipitation.
How May compares with other months
Compared with April, May is 5.2 °C9.4 °F warmer on average and wetter by 9 mm0.4 in. Compared with June, May is 3.6 °C6.4 °F cooler on average and drier by 106 mm4.2 in. Daylight lasts about 13.7 hours around the middle of the month. Average relative humidity is 76% and the average cloud amount 72%.
Is May a good time to visit Hangzhou?
May is not among the most comfortable months by our comfort score: it is fairly wet (124 mm4.9 in) and it is humid (76%). The most comfortable months in Hangzhou are October.
What to wear in May
For Hangzhou in May, pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
May in nearby places
Other months in Hangzhou
- January8 °C47 °F / −1 °C30 °F
- February11 °C52 °F / 1 °C34 °F
- March16 °C61 °F / 5 °C41 °F
- April22 °C72 °F / 11 °C51 °F
- May27 °C81 °F / 16 °C61 °F
- June30 °C86 °F / 21 °C69 °F
- July33 °C91 °F / 25 °C77 °F
- August33 °C91 °F / 24 °C76 °F
- September29 °C84 °F / 20 °C68 °F
- October24 °C75 °F / 13 °C56 °F
- November18 °C64 °F / 7 °C45 °F
- December11 °C51 °F / 1 °C33 °F
Frequently asked questions
How warm is Hangzhou in May?
In May the average high in Hangzhou is 27 °C (81 °F) and the average low is 16 °C (61 °F).
Does it rain a lot in Hangzhou in May?
On average about 124 mm (4.9 in) of precipitation falls in May; it ranks 5th of the 12 months.
Is May the warmest month in Hangzhou?
No. The warmest month in Hangzhou is July, with an average high of 33 °C (91 °F). The coldest month is January, with an average low of -1 °C (30 °F).
How long is the day in Hangzhou in May?
In the middle of May the day in Hangzhou lasts about 13.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Hangzhou in May?
The average relative humidity in May is about 76%. Combined with warm days, it can feel muggy.
How cloudy is Hangzhou in May?
On average about 72% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 71 m, while Hangzhou lies at about 12 m. Temperatures on this page were therefore adjusted by +0.4 °C0.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.