August · Madagascar
Best time to visit Nosy Be in August Weather, crowds & prices
Weather in Nosy Be in August
Average temperature 25°C, 16 mm of rain, about 28 days with 6+ hours of sunshine and 72% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.8/10
Ranked #3 of 12 months
- Avg temp
- 25°C
- Rainfall
- 16 mm
- Humidity
- 72%
- Days with 6h+ sun
- 28
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Nosy Be scores 9.8/10 for beach and coastal travel - one of the top 12-month picks (#3). Expect around 25°C, 16 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Perfume-island beaches and snorkel days peak in the dry June-September stretch.
August is one of the strongest months in Nosy Be (3rd)
With 25°C (76°F) on average, August delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 16 mm of rain, any showers tend to pass through rather than settle in; about 28 days with 6+ hours of sunshine and 11.6 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Nosy Be at 9.8/10 (3rd of 12), just behind October at 9.9/10.
Pack light clothing, swimwear and real sun protection.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Nosy Be in August?
- In August, Nosy Be averages 25°C, 16 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 9.8/10.
- Is August a good time to visit Nosy Be?
- August earns a 9.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nosy Be in August?
- Expect about 16 mm of rain in August. Average humidity is 72% and there are about 28 days with 6+ hours of sunshine.
Curated in Nosy Be
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Things to do in Nosy Be
Nosy Be, Madagascar. Live activities and tours from GetYourGuide, matched to this destination.

