Xiamen weather in September
In September, Xiamen has an average high of 30 °C86 °F and an average low of 24 °C76 °F, with about 134 mm5.3 in of precipitation. It is the 3rd warmest month of the year and ranks 5th for precipitation.
How September compares with other months
Compared with August, September is 1.2 °C2.2 °F cooler on average and drier by 54 mm2.1 in. Compared with October, September is 3.6 °C6.4 °F warmer on average and wetter by 92 mm3.6 in. Daylight lasts about 12.3 hours around the middle of the month. Average relative humidity is 82% and the average cloud amount 57%.
Is September a good time to visit Xiamen?
September is not among the most comfortable months by our comfort score: it is hot (average high 30 °C86 °F), it is fairly wet (134 mm5.3 in) and it is humid (82%). The most comfortable months in Xiamen are February and October–December.
What to wear in September
For Xiamen in September, pack light summer clothes such as T-shirts, shorts or light dresses and an umbrella or light rain jacket.
September in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Xiamen | 3086 | 2476 | 1345.3 |
| Zhangzhou | 3289 | 2272 | 1465.8 |
| Quanzhou | 3085 | 2475 | 1465.7 |
| Longyan | 3188 | 2170 | 1385.4 |
| Putian | 3187 | 2272 | 1315.1 |
| Shantou | 2985 | 2577 | 1365.3 |
| Meizhou | 3289 | 2373 | 1275.0 |
| Sanming | 3289 | 2171 | 1154.5 |
| Haimen | 2883 | 2780 | 1275.0 |
Nearby places that are more than 1 °C1.8 °F cooler: Longyan.
Other months in Xiamen
- January18 °C64 °F / 10 °C50 °F
- February19 °C66 °F / 11 °C52 °F
- March21 °C70 °F / 13 °C56 °F
- April24 °C76 °F / 17 °C63 °F
- May27 °C81 °F / 22 °C71 °F
- June29 °C85 °F / 25 °C77 °F
- July31 °C88 °F / 26 °C79 °F
- August31 °C87 °F / 26 °C79 °F
- September30 °C86 °F / 24 °C76 °F
- October27 °C81 °F / 20 °C68 °F
- November24 °C74 °F / 16 °C62 °F
- December19 °C67 °F / 11 °C53 °F
Frequently asked questions
How warm is Xiamen in September?
In September the average high in Xiamen is 30 °C (86 °F) and the average low is 24 °C (76 °F).
Does it rain a lot in Xiamen in September?
On average about 134 mm (5.3 in) of precipitation falls in September; it ranks 5th of the 12 months.
Is September the warmest month in Xiamen?
No. The warmest month in Xiamen is July, with an average high of 31 °C (88 °F). The coldest month is January, with an average low of 10 °C (50 °F).
How long is the day in Xiamen in September?
In the middle of September the day in Xiamen lasts about 12.3 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Xiamen in September?
The average relative humidity in September is about 82%. Combined with warm days, it can feel muggy.
How cloudy is Xiamen in September?
On average about 57% of the sky is covered by cloud in September. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 112 m, while Xiamen lies at about 12 m. Temperatures on this page were therefore adjusted by +0.6 °C1.2 °F using the standard lapse rate of 6.5 °C per 1,000 m.