The IBA includes both Weizhou Dao and Xieyang Dao islands, which are 17 km apart. The southern part of Weizhou Dao island has a hilly, volcanic topography, and the northern part has sand bars and alluvial plain. The IBA has a north Asian subtropical monsoon climate. There are 435 ha of woodland on the island, mainly composed of Casuarina equisetifolia and Acacia confusa.
Non-bird biodiversity: No information.
BirdLife International (2019) Important Bird Areas factsheet: Weizhou Dao Nature Reserve. Downloaded from http://www.birdlife.org on 15/10/2019.