Hangzhou weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Good
Best time to visit: April – May, September – November
What is the weather like in Hangzhou in May?
In May, Hangzhou is warm: daytime highs average 26 °C, and nights cool down to about 17 °C. The sea averages 20.1 °C – refreshing for a swim. Expect around 5 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 150 mm in total. All in all, May is a good month for a holiday in Hangzhou.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 13 h 39 min05:06 – 18:45
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 10 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 5 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+8Asia/Shanghai
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %35 %
- Few rainy daysweight 30 %42 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in May
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Rain jacket or umbrella
Hangzhou in May: quick answers
Is Hangzhou hot in May?
Warm rather than hot: in May, daytime highs in Hangzhou average 26 °C and nights cool to about 17 °C. On about 5 days the thermometer climbs to 30 °C or more.
Can you swim in Hangzhou in May?
Yes. In May the sea averages 20.1 °C – refreshing for a swim.
Does it rain much in Hangzhou in May?
Rain is frequent, with about 12 rainy days and 150 mm in total.
Hangzhou month by month
The whole year in HangzhouAll destinations: ChinaWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences