Romania has a temperate-continental climate with four distinct seasons, hot summers, cold winters, and significant variation between its low-lying plains and mountain regions. The Carpathian Mountains arc through the center of the country and act as a major climate divider, creating drier conditions to the east and south while catching more rainfall on western slopes. Depending on where you are in Romania, average temperatures, snowfall, and rainfall can differ dramatically.
Summers and Winters Across the Country
Summers in Romania are warm to hot, particularly in the southern plains around Bucharest, where July temperatures regularly reach the low to mid-30s°C (upper 80s to mid-90s°F). The Black Sea coast stays slightly cooler thanks to sea breezes, making it a popular summer destination. Higher elevations in the Carpathians are noticeably milder, with summer highs often 10–15°C cooler than the lowlands, which makes mountain towns comfortable even in July and August.
Winters are genuinely cold. The plains regularly dip below freezing from December through February, and cold air masses from the east can push temperatures well below -10°C (14°F) during harsh spells. Mountain areas are colder still and receive heavy snowfall. Snow cover in the highlands can last up to 277 days at the highest elevations above 2,000 meters, with average snow depths around 40 cm. Down in the southern plains, snow cover lasts roughly 52 days on average, and typical snow depth is only 3 to 4 cm.
Rainfall Varies Sharply by Region
Romania’s driest areas are in the southeast. The Dobrogea plateau and the flat Bărăgan steppe east of Bucharest receive less than 500 mm of rain per year. The easternmost parts of Dobrogea, especially near the Danube Delta, are the most arid spots in the entire country, with annual totals dropping below 300 mm. That’s comparable to parts of southern Spain.
The western slopes of the Carpathians, by contrast, catch significantly more moisture from Atlantic weather systems moving across Europe. Mountain regions can receive 1,000 mm or more annually, with precipitation spread more evenly through the year. If you’re visiting the Transylvanian plateau (which sits inside the Carpathian arc), expect moderate rainfall and cooler conditions compared to the lowlands on either side.
How the Carpathians Shape the Climate
The Carpathian Mountains don’t just create altitude-related temperature drops. They fundamentally split Romania into different climate zones. Western Romania, exposed to moisture-carrying winds from the Atlantic, has a milder, wetter climate that resembles central Europe. Eastern and southern Romania, shielded by the mountains, experience more extreme temperature swings and drier conditions, closer to a steppe-influenced continental pattern.
Research tracking temperature changes across the Carpathians has found that warming trends are actually more pronounced in the lowlands below 1,000 to 1,200 meters than at higher elevations. The mountains are warming too, particularly in winter and summer, but the pattern is uneven. Western and southwestern parts of the range show stronger warming signals than the eastern and southern Carpathians. Shifting atmospheric circulation, especially stronger westerly winds in winter, appears to be one driver of these changes.
Best Months to Visit
April through October offers the most comfortable weather for travel. Late spring (May and June) is particularly appealing: temperatures are warm but not oppressive, the countryside is green, and tourist crowds are smaller than in peak summer. September and early October bring mild days and autumn foliage that’s especially striking in Transylvania’s forested valleys.
July and August are the warmest months and ideal for hiking in the Carpathians or visiting the Black Sea coast, though Bucharest can feel uncomfortably hot. Rain is possible year-round, even in summer, so packing layers and a rain jacket is practical regardless of when you go. Weather can shift quickly in mountain areas, where a sunny morning can turn into an afternoon thunderstorm.
Winter travel is entirely feasible if you’re prepared. Romania has ski resorts in the Carpathians, and cities like Brașov and Sibiu are atmospheric in the snow. But temperatures drop well below freezing, roads in mountain passes can be icy, and shorter daylight hours limit sightseeing. If you’re visiting between November and March, plan for cold weather gear and check road conditions before driving in elevated areas.
Climate by Region at a Glance
- Bucharest and the southern plains: Hot summers (30–35°C), cold winters (often below -5°C), low rainfall under 500 mm, minimal snow cover.
- Transylvania (central plateau): Moderate summers, cold winters, more rainfall than the plains, sheltered by mountains on most sides.
- Black Sea coast: Milder winters than inland, warm summers, very low rainfall (under 400 mm in places), windy in spring.
- Carpathian Mountains: Cool summers, heavy snowfall and long winters at elevation, the wettest part of the country.
- Western Romania (Banat, Crișana): Central European influence, milder winters than the east, more consistent rainfall throughout the year.