Is Nanning hotter than Shanghai in May?

It is hotter than Shanghai. According to the weather query in Nanjing, official website shows that the average temperature in Nanjing in May is 28 degrees, and that in Shanghai is 23 degrees, so Nanjing is hotter than Shanghai. Nanjing, referred to as "Ning", was called Jinling and Jiankang in ancient times. It is the capital of Jiangsu, a sub-provincial city, a megacity and the core city of Nanjing metropolitan area. Approved by the State Council, it is an important central city in eastern China.