Sandanski Weather in September
September in Sandanski averages 24°C (75°F) during the day and 12°C (54°F) at night. The excellent conditions and moderate rainfall make it a solid month to visit.
Rainfall in Sandanski in September
Records from the past 30 years suggest around 4 days of rain, with 53 mm (2.1 in) average for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.
Temperature in Sandanski in September
Sandanski has excellent weather in September, with days reaching 24°C (75°F) and nights cooling to 12°C (54°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Sandanski in September
With approximately 258 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.
Wind Speed in Sandanski in September
Average wind conditions reach 1 m/s (2 knots) in September. This creates generally peaceful weather with subtle air movement. Remember this is an average: some days are windless while others have noticeable or very gentle breezes.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Sandanski.
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 Sandanski's climate page.
Sandanski Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
24°C (75°F)
Chance of Rain
13%
Precipitation
53 mm (2.1 in)
Rainy days
4 days
Humidity
59%
Windspeed
1 m/s (2 knots)
Sunshine
258 hours
Percentage Sunshine
70%
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Sandanski typically drop from around 29°C (84°F) at the start of September to approximately 24°C (75°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 14°C (57°F).
Average temperatures in September
Daily Historical Precipitation
49-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 Sandanski in September
Browse day-by-day weather records for Sandanski spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sandanski historical weather extremes in September
Our historical data for Sandanski spans 1997 to 2025, revealing these weather extremes.
- Sandanski recorded its highest September temperature of 39°C (102°F) on September 5, 2015.
- The coldest September day was on September 28, 2002, with a maximum of 13°C (55°F).
- Sandanski registered its coldest September night on September 27, 1997, with temperatures dropping to -2°C (28°F).
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
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tolerable
unpleasant
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What to Wear in Sandanski 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Sandanski 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 Sandanski's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Sandanski climate overview or explore weather in Bulgaria.
