The eastern European country of Bulgaria has a mix of maritime climates, subtropical climates and inland continental climates and even a tundra climate on the highest mountain peaks. This mix is due to the geographical location, the differences in altitude and the influences of the Black Sea. The best time to travel to Bulgaria depends mainly on your destination. For most trips to Bulgaria, mid-May to mid-October is the best time to travel. Think especially of round trips and city breaks to Bulgaria, for example to the beautiful capital Sofia. Due to the possible heat and heavy thunderstorms that can occur in the months of July and August, it would be better to choose late spring or early autumn for tours and city trips instead of the middle of summer.