Climate averages 1991–2020
Guiyang weather
in September.
A warm, wet month: the 4th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Guiyang: daytime highs average 24.1°C and nights cool to about 16.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 101 mm of rain on roughly 12 days, which makes September a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average September day.
The nearest other city in this atlas is Anshun (86 km away). In September its highs average 22.6°C, 1.5°C cooler than Guiyang, with 128 mm of rain.
Among the 884 cities listed in China, Guiyang ranks joint 643rd of 884 for the warmest September highs and joint 570th of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Guiyang is 1.6°C cooler than that mean.
From September to October, average highs fall by 5.0°C to 19.1°C, and monthly rainfall rises from 101 mm to 105 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
Guiyang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.1°C1.9°C | 1.9°C | 67 | 14.5 | 10.711 h |
| February | 11.1°C4.0°C | 4.0°C | 61 | 13.8 | 11.211 h |
| March | 15.2°C7.4°C | 7.4°C | 97 | 19.0 | 12.012 h |
| April | 19.9°C12.0°C | 12.0°C | 130 | 19.0 | 12.813 h |
| May | 22.9°C15.5°C | 15.5°C | 191 | 19.3 | 13.413 h |
| June | 25.1°C18.6°C | 18.6°C | 239 | 20.7 | 13.814 h |
| July | 26.7°C20.2°C | 20.2°C | 168 | 17.7 | 13.614 h |
| August | 26.9°C19.7°C | 19.7°C | 124 | 15.7 | 13.113 h |
| September, selected | 24.1°C16.9°C | 16.9°C | 101 | 12.4 | 12.312 h |
| October | 19.1°C12.9°C | 12.9°C | 105 | 14.1 | 11.612 h |
| November | 15.0°C8.2°C | 8.2°C | 63 | 11.5 | 10.911 h |
| December | 9.8°C3.4°C | 3.4°C | 48 | 11.6 | 10.511 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
- Anshun in SeptemberChina · 86 kmHigh 22.6°C · Low 15.7°C · 128 mm rain
- Duyun in SeptemberChina · 87 kmHigh 25.2°C · Low 18.1°C · 117 mm rain
- Dushan in SeptemberChina · 117 kmHigh 24.4°C · Low 17.3°C · 112 mm rain
- Zunyi in SeptemberChina · 124 kmHigh 24.9°C · Low 17.7°C · 118 mm rain
- Kaili in SeptemberChina · 126 kmHigh 25.7°C · Low 18.2°C · 106 mm rain
- Liuzhi in SeptemberChina · 134 kmHigh 22.6°C · Low 15.9°C · 138 mm rain
- Bijie in SeptemberChina · 163 kmHigh 22.2°C · Low 15.1°C · 131 mm rain
- Loushanguan in SeptemberChina · 173 kmHigh 24.2°C · Low 17.6°C · 116 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 Guiyang) is explained once on the Guiyang year overview and on the Sources, method and limits page.