ClimaGo › Sofia › Weather in September
Bulgaria
September in Sofia brings warm pleasant days perfect for exploring historic sites and outdoor cafes while enjoying mild temperatures and mostly sunny skies before autumn fully arrives.
Avg High
24°C
Avg Low
12°C
Daily Rain
1.4mm
Rainfall
Low
✅ September is one of the best months to visit Sofia!
Sofia's ancient Roman ruins, ornate Orthodox churches and nearby mountain scenery offer Eastern European discovery.