Weather in Bulgaria

The weather in Bulgaria, including in Sofia and the interior regions, is temperate and representative of the continental climate typical of Central Europe. The exception is the Bulgarian coastline along the Black Sea, including cities like Varna and Burgas, which have a humid subtropical climate.

The climate is moderate, and seasons are distinct, with long, hot summers and relatively mild winters. Humidity levels in Bulgaria vary throughout the seasons, with summers being relatively dry compared to autumn and winter. Coastal areas typically experience higher humidity levels due to proximity to the Black Sea.

Springtime may be foggy and unpredictable in early March, but temperatures become warmer by June, rising to about 70°F (20°C). The high-altitude mountain areas remain snowy well into July, when the summer heat arrives.

Summer in Bulgaria starts in June and finishes towards the middle of September. Temperatures hover around 77°F (25°C) but can rise above 104°F (40°C) on a sunny and clear day. Recent years have seen an increase in extended dry heat waves.  The coastal areas have a refreshing breeze and average around a comfortable 70°F (20°C).

Temperatures don’t often drop below 50°F (10°C) during the short autumn from mid-September to October. While rainfall increases, it is dry compared to the rest of Europe. As the season progresses, winter brings more snow than rain.

Winter lasts from late October to mid-March and offers choice skiing opportunities thanks to the abundant snowfall. Expats can expect temperatures as low as 23°F (-5°C) or 5°F (-15°C) in the coldest regions. That said, it is regularly clear and sunny, softening the effect of the biting cold and making the thick snow enjoyable. Ski enthusiasts can find many popular ski resorts in Bulgaria, such as Bansko, Borovets and Pamporovo.

There have been several devastating floods in this region of Europe, including recent flood emergencies in 2024 and 2025. While these were historically rare, climate change has increased the frequency and intensity of extreme weather events, making violent storms and heavy snowfall more unpredictable. Areas near major rivers, like the Danube and Maritsa, are more prone to floods.

The Bulgarian government has been improving the country’s flood prevention and management systems to minimise the risks and impact of flooding. Expats should pay close attention to any government directives regarding the weather, such as not travelling or being outdoors in harsh conditions.