Xiamen Weather in September

September starts to cool slightly, but remains warm and humid. Rain decreases, and typhoon risk persists early in the month. It's a shoulder season with fewer crowds.

Light clothing, a light jacket for evenings, and an umbrella. Sunscreen and insect repellent.

Mid-Autumn Festival may cause travel spikes; book ahead. Early September can still see typhoons. Weather is generally pleasant for outdoor activities.