Climate averages 1991–2020
Heyuan weather
in May.
A hot, very wet month: the 5th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Heyuan: daytime highs average 28.5°C and nights cool to about 22.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 240 mm of rain on roughly 20 days, which makes May a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 16 min on an average May day.
The nearest other city in this atlas is Huizhou (74 km away). In May its highs average 28.6°C, about as warm as Heyuan, with 263 mm of rain.
Among the 884 cities listed in China, Heyuan ranks joint 83rd of 884 for the warmest May highs and joint 789th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Heyuan is 3.3°C warmer than that mean.
From May to June, average highs rise by 1.4°C to 29.8°C, and monthly rainfall rises from 240 mm to 295 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
Heyuan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.8°C9.0°C | 9.0°C | 48 | 6.2 | 10.811 h |
| February | 19.4°C11.1°C | 11.1°C | 59 | 9.4 | 11.311 h |
| March | 22.5°C14.5°C | 14.5°C | 122 | 13.6 | 12.012 h |
| April | 26.0°C19.0°C | 19.0°C | 168 | 15.4 | 12.713 h |
| May, selected | 28.5°C22.4°C | 22.4°C | 240 | 20.1 | 13.313 h |
| June | 29.8°C24.5°C | 24.5°C | 295 | 23.3 | 13.614 h |
| July | 31.1°C25.3°C | 25.3°C | 211 | 21.7 | 13.413 h |
| August | 31.1°C25.2°C | 25.2°C | 236 | 21.1 | 13.013 h |
| September | 30.2°C23.7°C | 23.7°C | 150 | 14.3 | 12.312 h |
| October | 28.0°C19.9°C | 19.9°C | 44 | 5.5 | 11.612 h |
| November | 24.1°C15.1°C | 15.1°C | 35 | 5.2 | 11.011 h |
| December | 19.1°C9.9°C | 9.9°C | 36 | 4.3 | 10.711 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
- Huizhou in MayChina · 74 kmHigh 28.6°C · Low 22.4°C · 263 mm rain
- Luoyang, China in MayChina · 76 kmHigh 28.9°C · Low 22.6°C · 301 mm rain
- Pingshan in MayChina · 82 kmHigh 28.5°C · Low 22.5°C · 243 mm rain
- Licheng in MayChina · 100 kmHigh 28.7°C · Low 22.4°C · 327 mm rain
- Anliu in MayChina · 101 kmHigh 28.3°C · Low 21.5°C · 198 mm rain
- Huacheng in MayChina · 102 kmHigh 28.4°C · Low 21.1°C · 216 mm rain
- Danshui, China in MayChina · 106 kmHigh 27.9°C · Low 23.2°C · 236 mm rain
- Hengbei in MayChina · 107 kmHigh 28.4°C · Low 21.4°C · 195 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 Heyuan) is explained once on the Heyuan year overview and on the Sources, method and limits page.