SeasonMapSunny Beach weather in August
Bulgaria
August in Sunny Beach: hot, dry, with clean air — one of the best months to visit.
#1 of 12 months in Sunny Beach · #24 of 1383 destinations to visit in August · comfort 95/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sunny Beach in August
Sunny Beach's forum calls the first half of August reliably hot, with the back half cooling off enough at night that a light jacket is worth having. Regulars note the weather can still surprise you — some Augusts bring a run of heavy downpours lasting a few hours, even in what's normally the driest stretch of summer.
Add your own note from Sunny Beach's card on the map.
Sunny Beach climate normals — August
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 69°F | |
| Feels like (high) | 31°C / 88°F | |
| Sea temperature | 26°C / 78°F | 😎 warm sea |
| Rainfall | 18 mm / 0.7 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 12.4 h/day | |
| Daylight | 13.9 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sunny Beach in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyPackage high season, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sunny Beach's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSunny Beach's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Sunny Beach in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Black Sea swimming season
15 Jun – 25 Sep · usuallySea warm enoughThe water is comfortable from the second half of June to late September, and the beach is shallow a long way out, which is why the package families come. September is the best of it.
- Season
Package high season
1 Jul – 31 AugSchool holidaysCrowdedEight kilometres of hotels running at capacity on northern European school holidays, with the bar strip loud until four in the morning. Old Nesebar next door is the quiet half of the day out.
Nearby, and something's on
Within 300 km of Sunny Beach — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sunny Beach?
Sunny Beach in August — FAQ
- Is August a good time to visit Sunny Beach?
- August in Sunny Beach: hot, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Sunny Beach on SeasonMap's comfort score (95/100).
- What is the weather like in Sunny Beach in August?
- In August, Sunny Beach averages a daily high of 29.5°C and a low of 20.7°C, with about 17.5 mm of rain over roughly 3.8 rainy days.
- What is the air quality in Sunny Beach in August?
- Sunny Beach has a mean US Air Quality Index of about 41 in August.
Other months in Sunny Beach
Compare Sunny Beach in August
Warmer or cooler than Sunny Beach in August
Similar destinations in Eastern Europe — August
Within 300 km: Istanbul's Bosphorus cross-continental swim around 15 Jul – 31 Aug, and Bucharest's George Enescu Festival around 27 Aug – 26 Sep.