Home › Weather › Weather In Bulgaria In September
Live forecasts update automatically; written guidance last reviewed 15 June 2026 by the National Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
September remains a fine month for Bulgarian holidays, with daytime temperatures averaging 24–28°C along the coast and 22–26°C inland, though evenings cool noticeably after sunset.
What is the weather typically like in Bulgaria during September?
September offers a warm, settled transition from summer into autumn. Coastal resorts such as Sunny Beach still see plenty of sunshine, with sea temperatures around 22°C – pleasant for swimming. Inland, including Sofia and the mountainous regions, days are warm but nights can drop to 10–12°C, so packing layers is wise. The chance of rain increases slightly later in the month, but most days remain dry.
How does September compare with other months?
If you are weighing up the weather in Bulgaria in may versus September, May is cooler and greener; September is generally more reliable for guaranteed warmth. The weather in Bulgaria in june and weather in Bulgaria in july both run hotter, frequently hitting 30°C or above, while by October the coast becomes noticeably quieter and cooler. The weather in bulgaria in september and october together offer a long shoulder season, but September is the stronger bet for beach days.
Is Sunny Beach still good in September?
Yes. The weather in bulgaria in september sunny beach stays warm enough for sunbathing and swimming, with fewer crowds than July or August. Most resorts remain open until mid-October.
What temperatures should I expect in Celsius?
The weather in bulgaria in september celsius readings typically sit between 24°C and 28°C during peak daytime hours, dropping to around 15°C after dark.
Was September 2022 typical for Bulgaria?
The weather in bulgaria in september 2022 followed the usual pattern: warm coastal days, cooler inland nights, and a few late-month showers. It was typical for the season.
If you are planning a holiday, check the live forecast above nearer your travel date. For comparisons with UK conditions, visit our UK weather hub or see the 10 day weather forecast UK.