Climate averages 1991–2020
Ya'an weather
in May.
A warm, 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 Ya'an: daytime highs average 23.5°C and nights cool to about 16.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 129 mm of rain on roughly 17 days, which makes May a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 39 min on an average May day.
The nearest other city in this atlas is Meishan (81 km away). In May its highs average 26.9°C, 3.4°C warmer than Ya'an, with 75 mm of rain.
Among the 884 cities listed in China, Ya'an ranks joint 676th of 884 for the warmest May highs and joint 548th of 884 for the driest May (rainfall, lowest first). The mean May high of those 884 cities is 25.2°C; Ya'an is 1.7°C cooler than that mean.
From May to June, average highs rise by 2.5°C to 26.0°C, and monthly rainfall rises from 129 mm to 168 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
Ya'an climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C2.7°C | 2.7°C | 45 | 12.9 | 10.410 h |
| February | 10.8°C4.5°C | 4.5°C | 52 | 13.4 | 11.111 h |
| March | 15.2°C8.1°C | 8.1°C | 76 | 15.2 | 12.012 h |
| April | 20.2°C12.7°C | 12.7°C | 104 | 15.3 | 12.913 h |
| May, selected | 23.5°C16.5°C | 16.5°C | 129 | 17.1 | 13.614 h |
| June | 26.0°C19.8°C | 19.8°C | 168 | 18.2 | 14.014 h |
| July | 27.7°C21.6°C | 21.6°C | 284 | 22.0 | 13.914 h |
| August | 27.3°C21.3°C | 21.3°C | 329 | 22.5 | 13.213 h |
| September | 23.4°C18.8°C | 18.8°C | 197 | 20.5 | 12.412 h |
| October | 18.7°C14.6°C | 14.6°C | 119 | 20.4 | 11.511 h |
| November | 14.6°C9.8°C | 9.8°C | 76 | 15.5 | 10.711 h |
| December | 9.8°C4.4°C | 4.4°C | 44 | 12.4 | 10.310 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
- Meishan in MayChina · 81 kmHigh 26.9°C · Low 18.2°C · 75 mm rain
- Leshan in MayChina · 88 kmHigh 26.4°C · Low 18.3°C · 83 mm rain
- Kangding in MayChina · 100 kmHigh 14.1°C · Low 5.9°C · 179 mm rain
- Luocheng in MayChina · 120 kmHigh 25.9°C · Low 17.8°C · 87 mm rain
- Chengdu in MayChina · 127 kmHigh 27.1°C · Low 18.0°C · 66 mm rain
- Ziyang in MayChina · 159 kmHigh 27.0°C · Low 18.2°C · 84 mm rain
- Deyang in MayChina · 184 kmHigh 26.6°C · Low 17.7°C · 59 mm rain
- Zigong in MayChina · 186 kmHigh 27.0°C · Low 18.6°C · 92 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 Ya'an) is explained once on the Ya'an year overview and on the Sources, method and limits page.