Climate averages 1991–2020
Zhengzhou weather
in September.
A warm, moderately wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Zhengzhou: daytime highs average 26.6°C and nights cool to about 17.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 83 mm of rain on roughly 9 days, which makes September a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Xinxiang (50 km away). In September its highs average 26.6°C, about as warm as Zhengzhou, with 60 mm of rain.
Among the 884 cities listed in China, Zhengzhou ranks joint 390th of 884 for the warmest September highs and joint 410th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Zhengzhou is 0.9°C warmer than that mean.
From September to October, average highs fall by 4.7°C to 21.9°C, and monthly rainfall falls from 83 mm to 42 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
Zhengzhou climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.7°C-3.3°C | -3.3°C | 9.8 | 2.3 | 10.110 h |
| February | 10.5°C-0.7°C | -0.7°C | 15 | 2.8 | 10.911 h |
| March | 16.4°C4.4°C | 4.4°C | 25 | 4.4 | 11.912 h |
| April | 23.0°C10.5°C | 10.5°C | 36 | 4.8 | 13.013 h |
| May | 28.3°C16.4°C | 16.4°C | 58 | 6.3 | 14.014 h |
| June | 32.3°C21.2°C | 21.2°C | 86 | 7.3 | 14.414 h |
| July | 32.1°C23.6°C | 23.6°C | 182 | 14.3 | 14.214 h |
| August | 30.2°C22.4°C | 22.4°C | 146 | 13.7 | 13.513 h |
| September, selected | 26.6°C17.6°C | 17.6°C | 83 | 8.6 | 12.412 h |
| October | 21.9°C11.8°C | 11.8°C | 42 | 4.9 | 11.311 h |
| November | 14.7°C4.6°C | 4.6°C | 30 | 4.6 | 10.410 h |
| December | 8.6°C-1.1°C | -1.1°C | 9.9 | 2.3 | 9.910 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
- Xinxiang in SeptemberChina · 50 kmHigh 26.6°C · Low 17.2°C · 60 mm rain
- Kaifeng in SeptemberChina · 60 kmHigh 26.6°C · Low 17.6°C · 79 mm rain
- Jiaozuo in SeptemberChina · 65 kmHigh 26.4°C · Low 16.9°C · 73 mm rain
- Yuzhou in SeptemberChina · 69 kmHigh 26.2°C · Low 17.6°C · 86 mm rain
- Xuchang in SeptemberChina · 83 kmHigh 26.7°C · Low 17.8°C · 82 mm rain
- Jiyuan in SeptemberChina · 103 kmHigh 26.1°C · Low 16.8°C · 91 mm rain
- Luoyang in SeptemberChina · 111 kmHigh 26.4°C · Low 17.2°C · 95 mm rain
- Jincheng in SeptemberChina · 111 kmHigh 23.1°C · Low 14.2°C · 74 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 Zhengzhou) is explained once on the Zhengzhou year overview and on the Sources, method and limits page.