Moldova has a continental climate: warm summers, cold winters, and distinct spring and autumn seasons. The best months to visit are May–June and September–October.
Spring brings mild temperatures and the countryside in full bloom. The days are long and clear, and the heat has not yet set in. May and June are ideal for walking around Orheiul Vechi or exploring Chisinau on foot.
Summer (July–August) is hot — temperatures reach 28–30°C in the south — and can be dry. The outdoor café culture in Chisinau is at its peak, and winery gardens come alive. The heat can be oppressive in the middle of the day, but evenings are pleasant.
Autumn is the best time for wine lovers. The grape harvest runs from late August through October, and wineries across the country offer harvest tours and tastings. The Chisinau Wine Festival, held in early October, is the country's biggest annual event and worth timing a visit around. The landscape turns golden and the light is excellent.
Winter (December–February) is cold and grey. Temperatures average around -2°C but can drop lower. There is little snow most years. Tourism infrastructure slows down, and some rural guesthouses close. That said, Chisinau's cafés and restaurants are warm and welcoming, and you'll have the sights to yourself.
The country celebrates Orthodox Easter with more ceremony than almost anywhere in Europe — a striking experience if your trip happens to coincide with it.