Xiamen weather in September
September in Xiamen: hot, rainy — a good time to visit.
#9 of 12 months in Xiamen · #758 of 897 destinations to visit in September · comfort 64/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Xiamen in September
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Xiamen climate normals — September
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Rainfall | 111 mm / 4.4 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 12.3 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 67 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Xiamen in September — FAQ
- Is September a good time to visit Xiamen?
- September in Xiamen: hot, rainy — a good time to visit. It ranks #9 of 12 months for Xiamen on SeasonMap's comfort score (64/100).
- What is the weather like in Xiamen in September?
- In September, Xiamen averages a daily high of 30.9°C and a low of 24.9°C, with about 110.9 mm of rain over roughly 12.2 rainy days.
- What is the air quality in Xiamen in September?
- Xiamen has a mean US Air Quality Index of about 67 in September.