Nessebar (Sunny Beach) weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: June – August
What is the weather like in Nessebar (Sunny Beach) in September?
In September, Nessebar (Sunny Beach) is warm: daytime highs average 23 °C, and nights cool down to about 17 °C. The sea averages 22.9 °C – refreshing for a swim. The sun shines for around 8 hours a day. Rain falls on about 7 days, adding up to 57 mm. All in all, September is a good month for a holiday in Nessebar (Sunny Beach).
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 99 | 78 | 30 |
| Day | 28° | 23° | 18° |
| Night | 21° | 17° | 12° |
| Sea | 25° | 23° | 19° |
| Sun | 10 h | 8 h | 6 h |
| Rain days | 5 | 7 | 7 |
More details for September
- Daylight
- 12 h 34 min06:48 – 19:21
- UV index
- 6 · highclear sky, noon (estimate)
- Muggy days
- 3 daysdew point 18 °C or more
- Wind
- 19 km/haverage daily peak
- Cloud cover
- 43 %on average
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+3Europe/Sofia
How the score comes together
- Temperatureweight 35 %73 %
- Seaweight 25 %84 %
- Sunshineweight 20 %77 %
- Few rainy daysweight 20 %82 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Swimwear
- Sunscreen
Nessebar (Sunny Beach) in September: quick answers
Is Nessebar (Sunny Beach) hot in September?
Warm rather than hot: in September, daytime highs in Nessebar (Sunny Beach) average 23 °C and nights cool to about 17 °C.
Can you swim in Nessebar (Sunny Beach) in September?
Yes. In September the sea averages 22.9 °C – refreshing for a swim.
Does it rain much in Nessebar (Sunny Beach) in September?
Rain falls on about 7 days, adding up to 57 mm.
Nessebar (Sunny Beach) month by month
The whole year in Nessebar (Sunny Beach)All destinations: Bulgaria
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)