The best time to visit Bulgaria is during the shoulder seasons of May-June and September-October for pleasant weather and fewer crowds, or in July-August for warm beach weather and mountain activities.
May and June offer comfortable temperatures for exploring cities like Sofia and Plovdiv, with blooming landscapes and less intense heat than mid-summer. This period is ideal for couples interested in cultural tours and hiking in areas like the Rila Mountains, where the trails are accessible but not yet at their busiest. You'll find museums and historical sites are less crowded, allowing for a more relaxed experience.
For those seeking warmer weather for beach holidays or extensive mountain trekking, July and August are prime. The Black Sea coast, particularly around cities like Varna and Burgas, is at its liveliest, with all resorts and water activities fully operational. This is a great time for families, as the coastal towns offer plenty of entertainment and gentle waters suitable for children. The higher mountain regions are also fully accessible for hiking and exploring.
September and October bring cooler, crisp weather, superb for wine tours in regions like the Thracian Valley, and for enjoying the autumn foliage in national parks. The grape harvest season makes this an especially interesting time for culinary travelers.