Bulgaria summer 2026 weather report shows cooler, wetter conditions

The National Institute of Meteorology and Hydrology (NIMH) reports that the summer of 2026 in Bulgaria was, on average, cooler and wetter than the previous two years. Despite this trend, average seasonal temperatures remained above the historical norms for the period.

Extreme temperature readings included a high of 40.5 degrees Celsius recorded on August 21 in Novacene, Pleven region, and a minimum of -2.6 degrees Celsius on Musala peak on July 23. In populated areas, the lowest minimum temperature was 4.5 degrees Celsius in Samokov on August 16.

Precipitation levels varied significantly by region. Rainfall amounts ranged from 34 percent of the climatic norm in Sungurlare to 196 percent in Goren Chiflik, Varna region. Goren Chiflik also recorded the highest seasonal rainfall total of 275 mm and the highest 24-hour rainfall amount of 107.1 mm on July 23. In Sofia, the highest 24-hour precipitation was 31.1 mm, consisting of rain and hail, recorded on July 2.