Causes of low temperature and rainy weather in southern China in spring

The reasons for the low temperature and rainy spring in South China are high humidity and topographic factors.

1, high humidity: high humidity in the south in spring is easy to form cloudy weather, which hinders sunlight exposure and leads to low temperature and rainy weather.

2. Topographic factors: The terrain in the southern region is complex, and there are many mountains and hills, which are easy to form front areas and fronts, leading to large temperature fluctuations and precipitation weather, leading to low temperature and rainy weather.