Weather & Seasons in Nosy Be
Nosy Be, located off the northwest coast of Madagascar (often paired with Mozambique itineraries due to proximity across the Indian Ocean), enjoys a tropical climate with warm temperatures year-round.
Average highs range from 26°C to 32°C, and the sea
remains inviting for swimming throughout the year. Diving is best from mid-April to theend of December.
Dry Season (May – October)
Best months to visit: May, June, July, August, September, October and November.
Weather: Clear skies, low humidity, and daytime temperatures around 26–32°C.
Activities: Perfect for beach holidays, snorkelling, diving, and wildlife excursions. Roads
are in good condition, making inland exploration easy.
Sunshine: Around 8–9 hours per day, ideal for long days outdoors.
Wet Season (December to April)
When the weather is hotter and more humid, with frequent tropical downpours.
Reliability: Sunny skies and calm seas ensure uninterrupted holidays.
Comfort: Moderate temperatures make outdoor activities enjoyable.
Cyclone risk: Highest from January to the end of March, when cyclones can disrupt travel plans. Sea conditions will be rougher with reduced visibility for diving due to rivers
flooding and flowing into the sea.
Travel impact: Roads may flood, and excursions could be cancelled.
Rather book in the dry season
Safety: Avoiding cyclone season reduces the risk of cancellations or dangerous weather.
Wildlife & Nature: Forests are lush, and marine life is abundant, offering excellent diving
and fishing opportunities.
Summary for travellers: If you’re planning a trip to Nosy Be, aim for May to November.
These months guarantee the best mix of sunshine, safe conditions, and unforgettable experiences. December is also fine; however, it is the start of the rainy season, and quite often there are thunderstorms in the evenings.
Skip January to the end of March, when
cyclones and heavy rains can spoil the adventure.
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