site.btaThe Weather on September 18

Variable clouds, decreasing over many areas to mostly sunny. Northwesterly wind, moderate, temporarily strong in the northeast. Lows: 8C to 13C, up to 15C on the Black Sea coast, around 8C in Sofia. Highs: 22C to 27C, around 24C in Sofia.

The Black Sea coast: Mostly sunny, with temporary cloud increases. Moderate to strong north-northwesterly wind. Highs: 23C to 26C. Seawater temperature: 23C to 24C. Sea wave height: around 3 degrees Douglas.

The mountains: Mostly sunny with temporary cloud increases. Moderate to strong northwesterly wind. Highs: around 15C at 1,200 m, around 8C at 2,000 m.

Source: National Institute of Meteorology and Hydrology