The weather in Xiamen in September is very hot. The average temperatures are between 25°C and 31°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Xiamen. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Xiamen in September 2025.
If you’re planning to visit Xiamen in the near future, we highly recommend that you review the 14 day weather forecast for Xiamen before you arrive.