Sunny Beach Weather in September
Thinking of visiting Sunny Beach in September? Expect high temperatures reaching 24°C (75°F) during the day, dropping to 17°C (63°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Sunny Beach in September
You can typically expect 4 days of rain this month, averaging around 62 mm (2.4 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Sunny Beach in September
The perfect temperature in Sunny Beach in September makes it a solid month to visit, with 24°C (75°F) during the day and 17°C (63°F) at night. This kind of day-to-night contrast is typical for this time of year. At 17°C (63°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Sunny Beach in September
The days are predominantly sunny, with an estimated total of around 246 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Average water temperature in September
The water temperature is 24°C (75°F), which most people find very comfortable. A good month for swimming and water sports.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Sunny Beach.
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 Sunny Beach's climate page.
Sunny Beach Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
24°C (75°F)
Water Temperature
24°C (75°F)
Chance of Rain
15%
Precipitation
62 mm (2.4 in)
Rainy days
4 days
Humidity
72%
Sunshine
246 hours
Percentage Sunshine
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Sunny Beach typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 12°C (54°F) to 16°C (61°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 Sunny Beach in September
Browse day-by-day weather records for Sunny Beach spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sunny Beach historical weather extremes in September
Our historical data for Sunny Beach spans 1997 to 2025, revealing these weather extremes.
- On September 16, 2022, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
- On September 21, 2007, Sunny Beach saw its coldest September day with temperatures maxing out at 13°C (55°F).
- The coldest night in September in Sunny Beach was on September 23, 1997, with a minimum of 3°C (37°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
pleasant
tolerable
unpleasant
poor
What to Wear in Sunny Beach 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. Expect water temperatures of around 24°C (75°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Sunny Beach 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 Sunny Beach's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Sunny Beach climate overview or explore weather in Bulgaria.
