site.btaThe Weather on May 21

Cloudiness to increase temporarily from west to east, with isolated light showers in the west before noon. With sunny periods, and cumulus clouds, rain showers and thunder around noon and in the afternoon, mostly in the western part of the country. Hailstorm probability is high. Light to moderate south-southwesterly wind. Highs: 22 C to 27 C, around 23 C in Sofia.

The Black Sea coast: Sunny with broken high, in the afternoon middle clouds. Light to moderate south-southeasterly wind. Highs: 18 C to 23 C. Sea water temperature: 12 C to 17 C. Sea waves height: 2 degrees Douglas. 

The mountains: Scattered clouds in the morning, cumulus clouds in the afternoon. Short rain showers with thunder mostly over the mountains in Western Bulgaria. Moderate to strong southwesterly wind. Highs: around 17 C at 1,200 meters, around 10 C at 2,000 meters.

Source: National Institute of Meteorology and Hydrology