On Sunday a cold atmospheric front will pass through the country. In the morning, the cloudiness will begin to increase rapidly from the west and rainfalls will start. Later in the day there will also be precipitation in the central and eastern regions of Bulgaria. The speed of the wind from the northwest will increase, bringing cold air with it. Temperatures in the afternoon will be in a wide range - from 16-19°C in the western and central regions of Bulgaria, to 30°C in South-Eastern Bulgaria.

Cloudiness will increase in mountains and there will be brief thunderstorms. The highest temperature in the afternoon at an altitude of 1200 m will be 8-9°C; at 2000 m - about 6°C.

At the Black Sea coast it will be mostly sunny. Cloudiness will increase towards the end of the day. The highest temperatures will be 24°-27°C, and the sea water temperature is 22°-23°C.