Climate averages 1991–2020
Hefei weather
in May.
A warm, wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Hefei: daytime highs average 26.3°C and nights cool to about 17.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 113 mm of rain on roughly 10 days, which makes May a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 46 min on an average May day.
The nearest other city in this atlas is Chaohu (63 km away). In May its highs average 25.9°C, about as warm as Hefei, with 135 mm of rain.
Among the 884 cities listed in China, Hefei ranks joint 380th of 884 for the warmest May highs and joint 505th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Hefei is 1.1°C warmer than that mean.
From May to June, average highs rise by 2.8°C to 29.1°C, and monthly rainfall rises from 113 mm to 193 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
Hefei climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.8°C-0.6°C | -0.6°C | 48 | 7.4 | 10.310 h |
| February | 10.6°C1.6°C | 1.6°C | 52 | 8.2 | 11.011 h |
| March | 15.4°C5.9°C | 5.9°C | 73 | 9.7 | 12.012 h |
| April | 21.6°C11.8°C | 11.8°C | 91 | 8.9 | 12.913 h |
| May, selected | 26.3°C17.2°C | 17.2°C | 113 | 9.9 | 13.814 h |
| June | 29.1°C21.3°C | 21.3°C | 193 | 11.6 | 14.214 h |
| July | 31.6°C25.2°C | 25.2°C | 189 | 14.1 | 14.014 h |
| August | 31.1°C24.5°C | 24.5°C | 154 | 12.8 | 13.313 h |
| September | 27.5°C19.9°C | 19.9°C | 79 | 8.0 | 12.412 h |
| October | 22.6°C14.0°C | 14.0°C | 52 | 6.3 | 11.411 h |
| November | 16.4°C7.5°C | 7.5°C | 43 | 6.3 | 10.611 h |
| December | 10.0°C1.4°C | 1.4°C | 29 | 5.2 | 10.110 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
- Chaohu in MayChina · 63 kmHigh 25.9°C · Low 17.6°C · 135 mm rain
- Lucheng in MayChina · 70 kmHigh 26.3°C · Low 17.1°C · 148 mm rain
- Lu’an in MayChina · 74 kmHigh 26.4°C · Low 16.2°C · 106 mm rain
- Huainan in MayChina · 89 kmHigh 26.4°C · Low 16.7°C · 90 mm rain
- Wuyang in MayChina · 99 kmHigh 26.8°C · Low 16.6°C · 109 mm rain
- Chuzhou in MayChina · 108 kmHigh 25.8°C · Low 16.2°C · 116 mm rain
- Tongling in MayChina · 112 kmHigh 26.2°C · Low 17.4°C · 155 mm rain
- Ma’anshan in MayChina · 118 kmHigh 25.8°C · Low 16.9°C · 129 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 Hefei) is explained once on the Hefei year overview and on the Sources, method and limits page.