Nosy Be, MADAGASCAR and its best beaches
Climate - Temperatures and rainfall - Cyclones - Indian Ocean
Nosy Be: Temperatures during the day, at night, rain and bathing conditions
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January Day temperature  79°F / 26°C |
Night temp.  61°F / 16°C |
Bathing temperature  83°F / 28°C |
Rain  300 mm |
Conditions   
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February Day temperature 79°F / 26°C |
Night temp. 61°F / 16°C |
Bathing temperature 81°F / 27°C |
Rain 279 mm |
Conditions
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March Day temperature 79°F / 26°C |
Night temp. 61°F / 16°C |
Bathing temperature 81°F / 27°C |
Rain 178 mm |
Conditions 
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April Day temperature 76°F / 24°C |
Night temp. 58°F / 14°C |
Bathing temperature 81°F / 27°C |
Rain 053 mm |
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May Day temperature 74°F / 23°C |
Night temp. 54°F / 12°C |
Bathing temperature 81°F / 27°C |
Rain 018 mm |
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June Day temperature 70°F / 21°C |
Night temp. 50°F / 10°C |
Bathing temperature 79°F / 26°C |
Rain 008 mm |
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July Day temperature 68°F / 20°C |
Night temp. 49°F / 09°C |
Bathing temperature 76°F / 24°C |
Rain 008 mm |
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August Day temperature 70°F / 21°C |
Night temp. 49°F / 09°C |
Bathing temperature 76°F / 24°C |
Rain 010 mm |
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September Day temperature 74°F / 23°C |
Night temp. 52°F / 11°C |
Bathing temperature 74°F / 23°C |
Rain 018 mm |
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October Day temperature 81°F / 27°C |
Night temp. 54°F / 12°C |
Bathing temperature 76°F / 24°C |
Rain 061 mm |
Conditions 
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November Day temperature 81°F / 27°C |
Night temp. 58°F / 14°C |
Bathing temperature 77°F / 25°C |
Rain 135 mm |
Conditions
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December Day temperature 81°F / 27°C |
Night temp. 61°F / 16°C |
Bathing temperature 81°F / 27°C |
Rain 287 mm |
Conditions
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Madagascar : climate and when to go to Nosy be
Tropical climate along the coast, temperate inland, arid to the south. The best time for Madagascar is from April to September. Antananarivo: 61°F to 77°F in January and 48°F to 64°F in July. Nosy Be: 73°F to 88°F in January and 63°F to 84°F in July. The climate of Madagascar is subtropical (hot and humid), with a rainy season from November to March and a dry season from April to September. The southern and western regions are more arid. From December to March the monsoon winds sometimes bring cyclones on the north and east of the island. In the mountainous regions (Antananarivo) it is hot and stormy during the rainy season and dry and mild the rest of the year.
| January Avoid |
February Avoid |
March Risky |
April Risky |
May Risky |
June Risky |
July Risky |
August Risky |
September Risky |
October Fine |
November Acceptable |
December Avoid |
When to go? The hottest month for the beach, lazing around and swimming is January. Warning, January is a month with cyclonic risks, heavy showers may occur, otherwise other periods are possible. The coolest month is July, if you can not stand the heat too much. The driest month of the year is June, if you do not like the rain at all.
Click on
Nosy Be to display its climate.
Graphs and temperature curves with average precipitation over the year
Precipitation, rainfall, cyclone: MADAGASCAR
Temperatures of bathing water around Nosy Be
Landmarks
Perfect conditions to enjoy the beach. Favorable conditions for enjoying the beach. Cloudy with sunny spells and thunderstorms. Very strong tropical or monsoon rains. Months at risk of cyclones with alerts level 1 to 5. Nice swimming at more than 26°C / 79°F.
Everything is perfect for traveling.Cyclonic risks (4 month(s))
Cyclones History in the Indian Ocean
Indian Ocean
Climate May 2025
Nosy Be sunshine in summer and winter
The sun at its zenith, that means well perpendicular to the surface of the Earth, sending 100% of radiation and heat. Nosy Be receives in winter (january), 98% of sun power and 80% during summer time (july).
The average temperature and sunshine deviations between summer and winter are 18%. This small gap means that the temperature at sea does not really vary and that the sea remains warm enough in summer and winter. The air is also hot all year round without great thermal amplitude.
Average temperatures and rainfall for a stay in May
On the left, the averages observed every month of May on the Madagascar beaches. The trends for next month are, slightly lower average daytime temperatures, a bathing water in Indian Ocean which loses degrees, less rainfall with cooler nights.
Sunset and sunrise times for MADAGASCAR
Local time : May 2025, Friday 09, 08:09 AM
Sunrise time : 05:59 am, point A
Sunset time : 5:27 pm, point B
Duration of daylight : 11:28 / 24:00
Jet lag : GMT+3
The average monthly UV index of MADAGASCAR
What is the period of mosquitoes virulence over the year?
Weather forecast for Nosy Be
Here are the current 5-day forecasts for Fasenina-Ampasy / Nosy Be. Temperatures are spaced 3 hours apart for each day. The summary of the state of the sky gives the trend of the week. The sea temperature at is a monthly average. In lagoons or seashores where the bathing water is shallow, you can add some degrees.
Saturday
May 10, 2025
8 am
81.9°F
28°C
Broken clouds
Humidity 73%
Sea 81°F/27°C
Saturday
May 10, 2025
11 am
82°F
28°C
Few clouds
Humidity 71%
Sea 81°F/27°C
Saturday
May 10, 2025
2 pm
83.4°F
29°C
Clear sky
Humidity 71%
Sea 81°F/27°C
Saturday
May 10, 2025
5 pm
83.9°F
29°C
Clear sky
Humidity 73%
Sea 81°F/27°C
Saturday
May 10, 2025
8 pm
84°F
29°C
Light rain
Humidity 70%
Sea 81°F/27°C
Saturday
May 10, 2025
11 pm
84°F
29°C
Few clouds
Humidity 68%
Sea 81°F/27°C
Sunday
May 11, 2025
8 am
80.6°F
27°C
Light rain
Humidity 76%
Sea 81°F/27°C
Sunday
May 11, 2025
11 am
81°F
28°C
Light rain
Humidity 72%
Sea 81°F/27°C
Sunday
May 11, 2025
2 pm
83.9°F
29°C
Light rain
Humidity 71%
Sea 81°F/27°C
Sunday
May 11, 2025
5 pm
83.9°F
29°C
Light rain
Humidity 73%
Sea 81°F/27°C
Sunday
May 11, 2025
8 pm
83.7°F
29°C
Moderate rain
Humidity 70%
Sea 81°F/27°C
Sunday
May 11, 2025
11 pm
83.8°F
29°C
Light rain
Humidity 68%
Sea 81°F/27°C
Monday
May 12, 2025
8 am
80.3°F
27°C
Light rain
Humidity 79%
Sea 81°F/27°C
Monday
May 12, 2025
11 am
81°F
28°C
Light rain
Humidity 74%
Sea 81°F/27°C
Monday
May 12, 2025
2 pm
83.4°F
29°C
Light rain
Humidity 71%
Sea 81°F/27°C
Monday
May 12, 2025
5 pm
83.2°F
29°C
Moderate rain
Humidity 71%
Sea 81°F/27°C
Monday
May 12, 2025
8 pm
84.6°F
30°C
Light rain
Humidity 65%
Sea 81°F/27°C
Monday
May 12, 2025
11 pm
84.2°F
29°C
Broken clouds
Humidity 66%
Sea 81°F/27°C
Tuesday
May 13, 2025
8 am
80.3°F
27°C
Light rain
Humidity 72%
Sea 81°F/27°C
Tuesday
May 13, 2025
11 am
80.8°F
28°C
Clear sky
Humidity 69%
Sea 81°F/27°C
Tuesday
May 13, 2025
2 pm
83°F
29°C
Clear sky
Humidity 71%
Sea 81°F/27°C
Tuesday
May 13, 2025
5 pm
83.4°F
29°C
Light rain
Humidity 72%
Sea 81°F/27°C
Tuesday
May 13, 2025
8 pm
84.2°F
29°C
Light rain
Humidity 67%
Sea 81°F/27°C
Tuesday
May 13, 2025
11 pm
83.4°F
29°C
Clear sky
Humidity 68%
Sea 81°F/27°C
Weather uncertainties 2025 to go to Nosy Be ?
When traveling in the tropics as a seaside, rain is not welcome. If you see this indicator, with possible storms, that does not mean that it will rain all day long. When we observe the local rainfall, it is either really zero or very weak. Meteorologists prefer to be pessimistic. So observe below, the skies photographed during a week announced stormy in Asia. It did not rain once. I invite you to integrate this parameter before going to Nosy Be for a good trip to the sun!
