Is Shenzhen suitable for health preservation in terms of climate?

Shenzhen has a maritime climate (referred to as subtropical monsoon climate for short) with beautiful weather and abundant precipitation. The annual average temperature is 22.5℃ (the most comfortable temperature for people 18℃-22℃), and the extreme temperature is 38.7℃ at the highest and 0.2℃ at the lowest. The frost-free period is 355 days, with an average annual rainfall of 1 0,924.3 mm and sunshine of 2 1 0,20.5 hours, which is suitable for tourism all year round.

The coldest January average temperature 15.4℃ (average maximum temperature 20℃, average minimum temperature 12℃, warm weather, chills when cold air strikes). The hottest average temperature in July: 28.8℃. Because typhoons are blocked by mountains in summer and autumn, they directly hit Shenzhen less than once a year on average. Even under the influence of smog in the north, the average foggy day in Shenzhen is no more than five days, and the air quality is among the best in all provinces and cities in China.