Climate averages 1991–2020
Longyan weather
in September.
A hot, wet month: the 3rd warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Longyan: daytime highs average 29.7°C and nights cool to about 21.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 126 mm of rain on roughly 16 days, which makes September a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average September day.
The nearest other city in this atlas is Zhangzhou (90 km away). In September its highs average 30.1°C, about as warm as Longyan, with 142 mm of rain.
Among the 884 cities listed in China, Longyan ranks joint 88th of 884 for the warmest September highs and joint 682nd of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Longyan is 4.0°C warmer than that mean.
From September to October, average highs fall by 2.6°C to 27.2°C, and monthly rainfall falls from 126 mm to 56 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
Longyan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C7.8°C | 7.8°C | 62 | 7.7 | 10.811 h |
| February | 18.5°C9.7°C | 9.7°C | 97 | 11.2 | 11.311 h |
| March | 21.2°C12.7°C | 12.7°C | 167 | 17.0 | 12.012 h |
| April | 24.9°C16.7°C | 16.7°C | 194 | 17.6 | 12.713 h |
| May | 27.5°C20.2°C | 20.2°C | 246 | 20.8 | 13.313 h |
| June | 29.2°C22.6°C | 22.6°C | 264 | 22.2 | 13.714 h |
| July | 31.4°C23.5°C | 23.5°C | 180 | 19.0 | 13.514 h |
| August | 31.2°C23.5°C | 23.5°C | 223 | 20.8 | 13.013 h |
| September, selected | 29.7°C21.7°C | 21.7°C | 126 | 15.5 | 12.312 h |
| October | 27.2°C17.6°C | 17.6°C | 56 | 6.9 | 11.612 h |
| November | 23.4°C13.2°C | 13.2°C | 49 | 6.4 | 10.911 h |
| December | 18.5°C8.5°C | 8.5°C | 50 | 6.3 | 10.611 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
- Zhangzhou in SeptemberChina · 90 kmHigh 30.1°C · Low 22.8°C · 142 mm rain
- Meizhou in SeptemberChina · 126 kmHigh 31.0°C · Low 23.2°C · 118 mm rain
- Xiamen in SeptemberChina · 126 kmHigh 29.7°C · Low 24.0°C · 131 mm rain
- Ximeicun in SeptemberChina · 138 kmHigh 29.8°C · Low 22.9°C · 123 mm rain
- Sanming in SeptemberChina · 144 kmHigh 31.0°C · Low 22.7°C · 103 mm rain
- Huanggang (Guangdong), China in SeptemberChina · 155 kmHigh 29.5°C · Low 23.9°C · 177 mm rain
- Quanzhou in SeptemberChina · 159 kmHigh 29.7°C · Low 23.7°C · 123 mm rain
- Jinjiang in SeptemberChina · 159 kmHigh 29.3°C · Low 24.1°C · 114 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 Longyan) is explained once on the Longyan year overview and on the Sources, method and limits page.