Guangzhou weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Poor
Best time to visit: October – February
What is the weather like in Guangzhou in September?
In September, Guangzhou is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. Expect around 5 hours of sunshine a day. It rains often – on about 17 days, adding up to 183 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in Guangzhou.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 29 | 38 | 73 |
| Day | 32° | 31° | 28° |
| Night | 26° | 24° | 21° |
| Sun | 6 h | 5 h | 6 h |
| Rain days | 22 | 17 | 7 |
More details for September
- Daylight
- 12 h 19 min06:13 – 18:32
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 29 daysdew point 18 °C or moreAll months
- Wind
- 13 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 21 days30 °C or moreAll months
- Time zone
- UTC+8Asia/Shanghai
How the score comes together
- Temperatureweight 50 %54 %
- Sunshineweight 20 %40 %
- Few rainy daysweight 30 %10 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Guangzhou in September: quick answers
Is Guangzhou hot in September?
Yes. In September, Guangzhou is hot: daytime highs average 31 °C and nights stay around 24 °C. On about 21 days the thermometer climbs to 30 °C or more.
Does it rain much in Guangzhou in September?
It rains often – on about 17 days, adding up to 183 mm.
Guangzhou month by month
The whole year in GuangzhouAll destinations: ChinaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences