Climate averages 1991–2020
Xiamen weather
in September.
A hot, wet month: the 3rd 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 Xiamen: daytime highs average 29.7°C and nights cool to about 24.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 131 mm of rain on roughly 12 days, which makes September a wet month (the 8th 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 (43 km away). In September its highs average 30.1°C, about as warm as Xiamen, with 142 mm of rain.
Among the 884 cities listed in China, Xiamen ranks joint 88th of 884 for the warmest September highs and joint 701st of 884 for the driest September (rainfall, lowest first). The mean September high of those 884 cities is 25.7°C; Xiamen is 4.0°C warmer than that mean.
From September to October, average highs fall by 2.1°C to 27.6°C, and monthly rainfall falls from 131 mm to 44 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
Xiamen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.2°C10.0°C | 10.0°C | 40 | 5.6 | 10.811 h |
| February | 17.8°C10.7°C | 10.7°C | 61 | 8.8 | 11.311 h |
| March | 20.2°C13.0°C | 13.0°C | 89 | 11.7 | 12.012 h |
| April | 23.9°C17.0°C | 17.0°C | 108 | 12.8 | 12.713 h |
| May | 26.8°C21.0°C | 21.0°C | 184 | 16.1 | 13.313 h |
| June | 29.0°C24.3°C | 24.3°C | 245 | 19.6 | 13.614 h |
| July | 30.9°C25.6°C | 25.6°C | 188 | 17.0 | 13.513 h |
| August | 30.6°C25.4°C | 25.4°C | 251 | 19.7 | 13.013 h |
| September, selected | 29.7°C24.0°C | 24.0°C | 131 | 12.2 | 12.312 h |
| October | 27.6°C20.7°C | 20.7°C | 44 | 3.8 | 11.612 h |
| November | 23.7°C16.7°C | 16.7°C | 49 | 4.7 | 11.011 h |
| December | 19.1°C11.9°C | 11.9°C | 42 | 5.0 | 10.711 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 · 43 kmHigh 30.1°C · Low 22.8°C · 142 mm rain
- Jinjiang in SeptemberChina · 62 kmHigh 29.3°C · Low 24.1°C · 114 mm rain
- Ximeicun in SeptemberChina · 64 kmHigh 29.8°C · Low 22.9°C · 123 mm rain
- Quanzhou in SeptemberChina · 70 kmHigh 29.7°C · Low 23.7°C · 123 mm rain
- Longyan in SeptemberChina · 126 kmHigh 29.7°C · Low 21.7°C · 126 mm rain
- Huanggang (Guangdong), China in SeptemberChina · 142 kmHigh 29.5°C · Low 23.9°C · 177 mm rain
- Putian in SeptemberChina · 142 kmHigh 28.8°C · Low 23.5°C · 152 mm rain
- Chaozhou in SeptemberChina · 174 kmHigh 29.8°C · Low 23.3°C · 187 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 Xiamen) is explained once on the Xiamen year overview and on the Sources, method and limits page.