Nosy Be, MadagascarQuick decision
When to visit Nosy Be?
🌞 Best time overall
July
🌡️ Optimal temperature
22°C–28°C in July
🌧 Least rain
20% rainy days in July
🌧 Wettest month
January (94%)
📅 Best score
8.8/10
By trip type
Best time by type of trip
Beaches & LagoonMay–November — Andilana, white sand and turquoise waters.
Humpback WhalesJuly–September — whale watching from Nosy Be and Sainte-Marie.
DivingApril–December — reefs, whale sharks (Oct–Dec) and Nosy Tanikely.
Ylang-Ylang & SpicesYear-round — distilleries, vanilla and tropical plantations.
Monthly climate data
Nosy Be weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 24°C | 29°C | 94% | 16.0 | 10.7h | 7.0/10 |
| 🌦️ February | 25°C | 29°C | 89% | 11.0 | 11.2h | 7.0/10 |
| 🌦️ March | 25°C | 29°C | 88% | 8.9 | 11.0h | 7.0/10 |
| ⛅ April | 25°C | 30°C | 70% | 3.2 | 11.4h | 7.2/10 |
| 🌤️ May | 24°C | 29°C | 42% | 1.6 | 11.0h | 8.0/10 |
| 🌤️ June | 23°C | 28°C | 31% | 1.1 | 10.9h | 8.5/10 |
| ☀️ July | 22°C | 28°C | 20% | 0.8 | 11.0h | 8.8/10 |
| 🌤️ August | 22°C | 28°C | 35% | 1.0 | 11.5h | 8.5/10 |
| 🌤️ September | 22°C | 28°C | 44% | 1.4 | 11.7h | 8.3/10 |
| 🌤️ October | 24°C | 29°C | 57% | 2.7 | 11.8h | 7.6/10 |
| 🌦️ November | 24°C | 30°C | 86% | 5.1 | 12.4h | 7.1/10 |
| 🌦️ December | 24°C | 29°C | 91% | 6.8 | 12.2h | 7.1/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 29°C, 67% rainy days, 11.1h sunshine/day. Score: 7.4/10.
☀️ Summer (Jun–Aug) — Excellent time
Average 28°C, 29% rainy days, 11.1h sunshine/day. Score: 8.6/10.
🍂 Autumn (Sep–Nov) — Good time
Average 29°C, 62% rainy days, 12.0h sunshine/day. Score: 7.7/10.
❄️ Winter (Dec–Feb) — Good time
Average 29°C, 91% rainy days, 11.4h sunshine/day. Score: 7.0/10.
Accommodation
Find a place to stay in Nosy Be
Check availability during the recommended period
Tip : January, February offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Nosy Be
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
July is ideal with 20% rainy days and 28°C.
January is the wettest month with 94% rainy days.
Yes, July is the best month with an average of 28°C.
In winter, the average score is 7.0/10. Acceptable conditions for cultural visits.
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