Climate averages 1991–2020
Kaifeng weather
in September.
A warm, moderately wet month: the 5th warmest and the 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Kaifeng: 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 79 mm of rain on roughly 8 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 Zhengzhou (60 km away). In September its highs average 26.6°C, about as warm as Kaifeng, with 83 mm of rain.
Among the 884 cities listed in China, Kaifeng ranks joint 390th of 884 for the warmest September highs and joint 369th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Kaifeng is 0.9°C warmer than that mean.
From September to October, average highs fall by 4.7°C to 21.8°C, and monthly rainfall falls from 79 mm to 38 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
Kaifeng climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.4°C-3.6°C | -3.6°C | 9.7 | 2.3 | 10.110 h |
| February | 10.1°C-0.9°C | -0.9°C | 14 | 2.7 | 10.911 h |
| March | 15.9°C4.2°C | 4.2°C | 25 | 4.1 | 11.912 h |
| April | 22.5°C10.5°C | 10.5°C | 36 | 4.9 | 13.013 h |
| May | 27.8°C16.3°C | 16.3°C | 55 | 6.0 | 14.014 h |
| June | 31.9°C21.3°C | 21.3°C | 81 | 7.0 | 14.414 h |
| July | 31.8°C23.7°C | 23.7°C | 180 | 13.4 | 14.214 h |
| August | 30.1°C22.5°C | 22.5°C | 143 | 12.5 | 13.513 h |
| September, selected | 26.6°C17.6°C | 17.6°C | 79 | 7.8 | 12.412 h |
| October | 21.8°C11.6°C | 11.6°C | 38 | 4.7 | 11.311 h |
| November | 14.5°C4.3°C | 4.3°C | 28 | 4.4 | 10.410 h |
| December | 8.2°C-1.7°C | -1.7°C | 9.5 | 2.1 | 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
- Zhengzhou in SeptemberChina · 60 kmHigh 26.6°C · Low 17.6°C · 83 mm rain
- Xinxiang in SeptemberChina · 63 kmHigh 26.6°C · Low 17.2°C · 60 mm rain
- Xuchang in SeptemberChina · 95 kmHigh 26.7°C · Low 17.8°C · 82 mm rain
- Hebi in SeptemberChina · 104 kmHigh 26.8°C · Low 17.4°C · 61 mm rain
- Yuzhou in SeptemberChina · 105 kmHigh 26.2°C · Low 17.6°C · 86 mm rain
- Jiaozuo in SeptemberChina · 109 kmHigh 26.4°C · Low 16.9°C · 73 mm rain
- Heze in SeptemberChina · 117 kmHigh 26.7°C · Low 17.5°C · 81 mm rain
- Puyang Chengguanzhen in SeptemberChina · 120 kmHigh 26.9°C · Low 17.5°C · 62 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 Kaifeng) is explained once on the Kaifeng year overview and on the Sources, method and limits page.