Climate averages 1991–2020
Hepu weather
in September.
A hot, very wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Hepu: daytime highs average 30.1°C and nights cool to about 24.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 199 mm of rain on roughly 19 days, which makes September a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average September day.
The nearest other city in this atlas is Beihai (21 km away). In September its highs average 29.5°C, 0.6°C cooler than Hepu, with 267 mm of rain.
Among the 884 cities listed in China, Hepu ranks joint 38th of 884 for the warmest September highs and joint 841st of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Hepu is 4.4°C warmer than that mean.
From September to October, average highs fall by 1.7°C to 28.4°C, and monthly rainfall falls from 199 mm to 73 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
Hepu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.3°C12.5°C | 12.5°C | 32 | 5.7 | 11.011 h |
| February | 21.2°C14.4°C | 14.4°C | 23 | 5.2 | 11.411 h |
| March | 24.3°C17.6°C | 17.6°C | 53 | 9.4 | 12.012 h |
| April | 27.7°C21.4°C | 21.4°C | 102 | 12.3 | 12.613 h |
| May | 29.8°C24.3°C | 24.3°C | 222 | 19.0 | 13.213 h |
| June | 30.6°C26.3°C | 26.3°C | 339 | 23.1 | 13.413 h |
| July | 30.8°C26.6°C | 26.6°C | 330 | 23.1 | 13.313 h |
| August | 30.7°C26.1°C | 26.1°C | 343 | 25.6 | 12.913 h |
| September, selected | 30.1°C24.6°C | 24.6°C | 199 | 18.5 | 12.312 h |
| October | 28.4°C21.8°C | 21.8°C | 73 | 8.4 | 11.712 h |
| November | 25.2°C18.0°C | 18.0°C | 47 | 6.5 | 11.111 h |
| December | 20.8°C13.7°C | 13.7°C | 34 | 5.1 | 10.811 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
- Beihai in SeptemberChina · 21 kmHigh 29.5°C · Low 25.8°C · 267 mm rain
- Xichang, China in SeptemberChina · 26 kmHigh 29.7°C · Low 25.2°C · 202 mm rain
- Gongguan in SeptemberChina · 44 kmHigh 30.2°C · Low 24.3°C · 188 mm rain
- Baisha (Guangxi), China in SeptemberChina · 50 kmHigh 30.1°C · Low 24.7°C · 181 mm rain
- Shankou in SeptemberChina · 54 kmHigh 29.9°C · Low 25.1°C · 200 mm rain
- Qinzhou in SeptemberChina · 67 kmHigh 30.0°C · Low 23.9°C · 177 mm rain
- Fangchenggang in SeptemberChina · 88 kmHigh 29.7°C · Low 24.2°C · 223 mm rain
- Lianjiang in SeptemberChina · 112 kmHigh 30.1°C · Low 23.9°C · 178 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 Hepu) is explained once on the Hepu year overview and on the Sources, method and limits page.