Best Overall: May-June and September-October - Pleasant temperatures (18-25°C/64-77°F), fewer tourists, parks in full bloom or autumn colors, comfortable for walking and sightseeing.
Spring is excellent for visiting, especially April-May. Nicolae Romanescu Park and the Botanical Garden showcase spectacular blooms. Temperatures range from 10-22°C (50-72°F). Occasional rain showers require flexible planning. Easter celebrations bring special religious services and cultural events.
Peak tourist season with warm to hot temperatures (25-35°C/77-95°F). July and August can be quite hot with occasional heatwaves. Parks provide shade and refreshment. Musical fountain shows are most frequent. Outdoor terraces in Old Town are lively. The International Shakespeare Festival (even-numbered years) attracts visitors. Book accommodations in advance. Stay hydrated and wear sun protection.
September and early October are ideal - comfortable temperatures (15-25°C/59-77°F), beautiful fall foliage in parks, harvest season with fresh produce, fewer crowds than summer. Cultural venues resume full programming. Late autumn (November) becomes cooler and rainier.
Cold temperatures (−5 to 5°C/23-41°F) with occasional snow. Christmas markets and decorations in December create festive atmosphere. Museums and indoor attractions remain open. Opera and theater season in full swing. Parks are less appealing but still accessible. Accommodation prices are lowest. Fewer tourists mean intimate experiences at museums.