Is it foggy in dog days?

Fog will cause limited vision and bring inconvenience to people's travel.

The dog days, which appear between the light summer heat and the hot summer heat, are the time when the temperature is the highest and it is humid and sultry in a year. Three volts can be divided into initial volts, intermediate volts and final volts, and their dates are determined by the coordination of solar terms and solar terms in the dry branch calendar. "