Climate averages 1991–2020
Chengdu weather
in May.
A warm, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Chengdu: daytime highs average 27.1°C and nights cool to about 18.0°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 66 mm of rain on roughly 10 days, which makes May a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 41 min on an average May day.
The nearest other city in this atlas is Deyang (60 km away). In May its highs average 26.6°C, 0.5°C cooler than Chengdu, with 59 mm of rain.
Among the 884 cities listed in China, Chengdu ranks joint 213th of 884 for the warmest May highs and joint 316th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Chengdu is 1.9°C warmer than that mean.
From May to June, average highs rise by 2.0°C to 29.1°C, and monthly rainfall rises from 66 mm to 128 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
Chengdu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.8°C3.1°C | 3.1°C | 3.4 | 1.0 | 10.410 h |
| February | 12.4°C5.1°C | 5.1°C | 6.9 | 2.1 | 11.111 h |
| March | 17.3°C9.0°C | 9.0°C | 19 | 5.5 | 12.012 h |
| April | 23.2°C13.8°C | 13.8°C | 43 | 7.8 | 12.913 h |
| May, selected | 27.1°C18.0°C | 18.0°C | 66 | 9.7 | 13.714 h |
| June | 29.1°C21.1°C | 21.1°C | 128 | 11.6 | 14.114 h |
| July | 30.0°C22.7°C | 22.7°C | 292 | 19.7 | 13.914 h |
| August | 29.5°C22.4°C | 22.4°C | 290 | 19.7 | 13.313 h |
| September | 25.5°C19.3°C | 19.3°C | 134 | 12.7 | 12.412 h |
| October | 20.6°C15.0°C | 15.0°C | 40 | 8.5 | 11.411 h |
| November | 16.2°C10.0°C | 10.0°C | 16 | 4.3 | 10.611 h |
| December | 11.1°C4.6°C | 4.6°C | 4.1 | 1.3 | 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
- Deyang in MayChina · 60 kmHigh 26.6°C · Low 17.7°C · 59 mm rain
- Meishan in MayChina · 73 kmHigh 26.9°C · Low 18.2°C · 75 mm rain
- Mianzhu, Deyang, Sichuan in MayChina · 76 kmHigh 23.9°C · Low 16.7°C · 73 mm rain
- Luojiang in MayChina · 82 kmHigh 26.0°C · Low 17.2°C · 59 mm rain
- Ziyang in MayChina · 82 kmHigh 27.0°C · Low 18.2°C · 84 mm rain
- Mianyang in MayChina · 107 kmHigh 26.7°C · Low 17.2°C · 66 mm rain
- Leshan in MayChina · 126 kmHigh 26.4°C · Low 18.3°C · 83 mm rain
- Ya'an in MayChina · 127 kmHigh 23.5°C · Low 16.5°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 Chengdu) is explained once on the Chengdu year overview and on the Sources, method and limits page.