I'd like to visit Wuxi during summer, heard it's very hot.

Yes, the temperature may range from 85 F to 90 F during that period of time. It would be hot and moist. There will have frequent rainy days in July and August. You should remember to bring the umbrella. About the clothes, you can only prepare skirts, shorts and other summer clothes. Have fun!

Hello, I am the local residents in there. Now the weather is really hot（86℉ - 102℉）, so the T-shirt is enough, and protect yourselves from the sunburn.