SeasonMapBeau Vallon (Mahé) weather in August
Seychelles
August in Beau Vallon: warm, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in Beau Vallon · #386 of 1383 destinations to visit in August · comfort 86/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Beau Vallon in August
No notes yet. Open Beau Vallon on the map to add the first one.
Beau Vallon climate normals — August
| Daytime high | 26°C / 78°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Sea temperature | 27°C / 80°F | 😎 warm sea |
| Rainfall | 61 mm / 2.4 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12 h | |
| Wind | 31 km/h / 19 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Beau Vallon 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.
Busyschool holidays in 4 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Beau Vallon'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 weatherBeau Vallon's best weather comes in February, March and August — separate windows, not one continuous season.
August includes Whale sharks off the bay.
Best weatherFair weatherToughest weather
What's on in Beau Vallon in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Southeast trades
1 May – 30 SepWind seasonThe southeast monsoon is the drier, cooler and windier half of the year. Boats to the outer islands get cancelled more often and the water loses its clarity, but the humidity drops and walking the Morne trails stops being a chore. Source ↗
- Nature
Whale sharks off the bay
1 Aug – 31 Oct · usuallyDive seasonBook earlyThe monitoring programme runs from August to the end of October and the boats go out from the bay itself, spotter plane overhead. Numbers swing from year to year, so a blank day is a normal outcome rather than bad luck. Source ↗
Where is Beau Vallon?
Beau Vallon in August — FAQ
- Is August a good time to visit Beau Vallon?
- August in Beau Vallon: warm, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Beau Vallon on SeasonMap's comfort score (86/100).
- What is the weather like in Beau Vallon in August?
- In August, Beau Vallon averages a daily high of 25.5°C and a low of 24.6°C, with about 60.5 mm of rain over roughly 12.6 rainy days.
- What is the air quality in Beau Vallon in August?
- Beau Vallon has a mean US Air Quality Index of about 49 in August.