Climate averages 1991–2020
Hangzhou weather
in May.
A warm, wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Hangzhou: daytime highs average 25.9°C and nights cool to about 16.9°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 156 mm of rain on roughly 12 days, which makes May a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 40 min on an average May day.
The nearest other city in this atlas is Xiaoshan (17 km away). In May its highs average 26.1°C, about as warm as Hangzhou, with 156 mm of rain.
Among the 884 cities listed in China, Hangzhou ranks joint 457th of 884 for the warmest May highs and joint 603rd of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Hangzhou is 0.7°C warmer than that mean.
From May to June, average highs rise by 2.4°C to 28.3°C, and monthly rainfall rises from 156 mm to 303 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Hangzhou climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.7°C1.1°C | 1.1°C | 80 | 10.3 | 10.410 h |
| February | 11.1°C2.8°C | 2.8°C | 74 | 10.0 | 11.111 h |
| March | 15.5°C6.5°C | 6.5°C | 119 | 13.5 | 12.012 h |
| April | 21.3°C11.7°C | 11.7°C | 131 | 12.1 | 12.913 h |
| May, selected | 25.9°C16.9°C | 16.9°C | 156 | 12.2 | 13.714 h |
| June | 28.3°C21.1°C | 21.1°C | 303 | 16.2 | 14.114 h |
| July | 32.8°C25.3°C | 25.3°C | 173 | 12.9 | 13.914 h |
| August | 32.3°C25.1°C | 25.1°C | 140 | 14.8 | 13.213 h |
| September | 27.9°C20.7°C | 20.7°C | 98 | 10.1 | 12.412 h |
| October | 23.0°C15.0°C | 15.0°C | 59 | 6.3 | 11.511 h |
| November | 17.4°C9.2°C | 9.2°C | 65 | 8.5 | 10.711 h |
| December | 11.2°C3.0°C | 3.0°C | 59 | 7.5 | 10.210 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Xiaoshan in MayChina · 17 kmHigh 26.1°C · Low 17.3°C · 156 mm rain
- Linping in MayChina · 19 kmHigh 25.9°C · Low 16.9°C · 159 mm rain
- Fuyang, China in MayChina · 33 kmHigh 26.1°C · Low 17.3°C · 182 mm rain
- Deqing in MayChina · 34 kmHigh 25.8°C · Low 16.4°C · 171 mm rain
- Chóngfú in MayChina · 37 kmHigh 25.7°C · Low 16.9°C · 157 mm rain
- Shaoxing in MayChina · 52 kmHigh 26.2°C · Low 17.0°C · 171 mm rain
- Haining in MayChina · 57 kmHigh 24.7°C · Low 17.6°C · 162 mm rain
- Zhuji in MayChina · 64 kmHigh 26.3°C · Low 17.1°C · 165 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Hangzhou) is explained once on the Hangzhou year overview and on the Sources, method and limits page.
Xiaoshan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.