SeasonMapAntsiranana weather in August
Madagascar
August in Antsiranana: hot, dry, with clean air — one of the best months to visit.
#1 of 12 months in Antsiranana · #12 of 1383 destinations to visit in August · comfort 95/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Antsiranana in August
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Antsiranana climate normals — August
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 71°F | |
| Feels like (high) | 29°C / 84°F | |
| Sea temperature | 27°C / 80°F | 😎 warm sea |
| Rainfall | 2 mm / 0.1 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 16°C / 61°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 11.7 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 26 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Antsiranana 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 Antsiranana'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 weatherAntsiranana's weather peaks July–September, best around August.
Best weatherFair weatherToughest weather
What's on in Antsiranana in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
The long dry months
1 May – 30 Nov · usuallyDry seasonRain is the exception rather than the rule from May onwards, which is when the tracks up Montagne d'Ambre hold and the boats to the Emerald Sea run most days. It is also when the trade wind is strongest across the bay.
Nearby, and something's on
Within 300 km of Antsiranana — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Antsiranana?
Antsiranana in August — FAQ
- Is August a good time to visit Antsiranana?
- August in Antsiranana: hot, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Antsiranana on SeasonMap's comfort score (95/100).
- What is the weather like in Antsiranana in August?
- In August, Antsiranana averages a daily high of 29.1°C and a low of 21.4°C, with about 2.4 mm of rain over roughly 0.7 rainy days.
- What is the air quality in Antsiranana in August?
- Antsiranana has a mean US Air Quality Index of about 26 in August.
Other months in Antsiranana
Compare Antsiranana in August
Warmer or cooler than Antsiranana in August
Similar destinations in Indian Ocean — August
Within 300 km: Nosy Be's Humpback whales around 1 Jul – 30 Sep.