What's the weather like going to Gulangyu Island in Xiamen on July 20th? How is it compared with Sanya?

The average temperature in Xiamen in July is between 25℃ and 32℃. July in Xiamen is a dry season, and the average precipitation 144mm is relatively small, so it is recommended to replenish more water. July is the small peak season for Xiamen tourism.

The average temperature in Sanya in July is about 30 degrees, which will be hotter than that in Xiamen. If you plan to go at that time, you can, because summer is the off-season of Sanya tourism. Relatively speaking, all costs will be saved, but the temperature will be higher.