Climate averages 1991–2020
Deyang weather
in September.
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.
September is a warm month in Deyang: daytime highs average 25.0°C and nights cool to about 19.0°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 133 mm of rain on roughly 14 days, which makes September a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.
The nearest other city in this atlas is Luojiang (23 km away). In September its highs average 24.6°C, about as warm as Deyang, with 133 mm of rain.
Among the 884 cities listed in China, Deyang ranks joint 597th of 884 for the warmest September highs and joint 709th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Deyang is 0.7°C cooler than that mean.
From September to October, average highs fall by 4.9°C to 20.1°C, and monthly rainfall falls from 133 mm to 47 mm.
The annual picture
September 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
Deyang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.2°C2.9°C | 2.9°C | 11 | 3.8 | 10.410 h |
| February | 11.7°C4.8°C | 4.8°C | 13 | 4.2 | 11.111 h |
| March | 16.5°C8.5°C | 8.5°C | 19 | 5.3 | 12.012 h |
| April | 22.5°C13.3°C | 13.3°C | 36 | 7.0 | 12.913 h |
| May | 26.6°C17.7°C | 17.7°C | 59 | 9.0 | 13.714 h |
| June | 28.9°C21.0°C | 21.0°C | 110 | 11.0 | 14.114 h |
| July | 29.8°C22.7°C | 22.7°C | 249 | 18.2 | 14.014 h |
| August | 29.2°C22.3°C | 22.3°C | 219 | 17.1 | 13.313 h |
| September, selected | 25.0°C19.0°C | 19.0°C | 133 | 13.6 | 12.412 h |
| October | 20.1°C14.6°C | 14.6°C | 47 | 9.1 | 11.411 h |
| November | 15.5°C9.6°C | 9.6°C | 20 | 4.9 | 10.611 h |
| December | 10.5°C4.4°C | 4.4°C | 9.7 | 3.5 | 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
September in nearby cities
- Luojiang in SeptemberChina · 23 kmHigh 24.6°C · Low 18.7°C · 133 mm rain
- Mianzhu, Deyang, Sichuan in SeptemberChina · 28 kmHigh 23.1°C · Low 18.4°C · 152 mm rain
- Mianyang in SeptemberChina · 47 kmHigh 25.1°C · Low 18.8°C · 142 mm rain
- Chengdu in SeptemberChina · 60 kmHigh 25.5°C · Low 19.3°C · 134 mm rain
- Jiangyou in SeptemberChina · 78 kmHigh 24.3°C · Low 18.6°C · 164 mm rain
- Ziyang in SeptemberChina · 115 kmHigh 26.1°C · Low 19.8°C · 116 mm rain
- Meishan in SeptemberChina · 132 kmHigh 25.7°C · Low 19.7°C · 120 mm rain
- Suining in SeptemberChina · 133 kmHigh 26.8°C · Low 20.1°C · 115 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 Deyang) is explained once on the Deyang year overview and on the Sources, method and limits page.
Luojiang lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.