Is it hotter on a cloudy night than on a sunny day?

The temperature in cloudy night is higher than that in sunny day;

During the day, clouds will weaken the radiation of sunlight on the ground, so cloudy weather is generally dark and the temperature is relatively low during the day; At night, clouds will reflect the surface inverse radiation, and the temperature is higher than that in sunny nights. In addition, the sky is brighter on cloudy nights, mostly orange-red, which is due to the reflection and scattering of ground light by clouds.