Sofia Weather in September
During September, Sofia experiences high daytime temperatures of 23°C (73°F) and cooler nights around 10°C (50°F). Some rainfall is typical during this period.
Rainfall in Sofia in September
Past climate data indicates that roughly 5 days will see rain, totalling around 50 mm (2 in) for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Sofia in September
Sofia in September is worth a visit. The temperature is perfect, with 23°C (73°F) during the day and 10°C (50°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 10°C (50°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Sofia in September
The days are predominantly sunny, with an estimated total of around 225 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Sofia in September
Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August and September typically offer the best circumstances for Sofia.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Sofia's climate page.
Sofia Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
23°C (73°F)
Chance of Rain
17%
Precipitation
50 mm (2 in)
Rainy days
5 days
Humidity
65%
Windspeed
2 m/s (4 knots)
Sunshine
225 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sofia typically drop from around 25°C (77°F) at the start of September to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Sofia in September
Browse day-by-day weather records for Sofia spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sofia historical weather extremes in September
Our historical data for Sofia spans 1976 to 2025, revealing these weather extremes.
- The warmest day in September was on September 5, 2015, with a maximum of 36°C (97°F).
- The lowest daytime temperature in September was 9°C (48°F), recorded on September 11, 1997.
- The lowest overnight temperature recorded in September was -5°C (23°F) (September 24, 1995).
Best Places in Bulgaria in September
Find out more about the weather in Bulgaria and which places have the best travel conditions in this month. See all of Bulgaria in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Sofia in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Sofia in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bulgaria, check out our Sofia's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Sofia climate overview or explore weather in Bulgaria.
