site.btaThe Weather on December 20

Mostly sunny before noon, with layered clouds in basins and around water bodies. Increasingly cloudy in the afternoon, sunny in Eastern Bulgaria. Light to moderate southerly-southwesterly wind. Lows: minus 2C to minus 3C, around minus 2C in Sofia. Highs: 8C to 13C, around 8C in Sofia. 

The Black Sea coast: Mostly sunny. Light to moderate southerly-southwesterly wind. Highs: 9C to 12C. Sea water temperature: 9C to 10C. Sea wave height: 2 to 3 degrees Douglas. 

The mountains: Mostly sunny. Increasingly cloudy in Western Bulgaria with almost no rain showers. Light to moderate westerly-southwesterly wind. Highs: around 9C at 1,200 metres, around 3C at 2,000 metres.

Source: National Institute of Meteorology and Hydrology