, hot all year round, with a rainy, hotter season from November to April and a dry season from May to October.
The island is located in the northwest of Madagascar, in the Diana region, at 13 degrees south latitude. The main city is Andoany (or Hell-Ville).
coming from the north-west, while in the austral winter, the cooler and drier south-east trade winds prevail. The climate of the neighbouring islands, such as Nosy Komba, Nosy Mitsio, Nosy Tanikely and Nosy Sakatia, is similar.
, from June to September, the night temperature drops quite often below 20 °C (68 °F), and sometimes, it can even drop to around 15/16 °C (59/61 °F), but during the day, it's almost always warm, thanks to the winds that blow from the interior of Madagascar.
fall. In the rainiest months (December, January and February), the rains are definitely frequent, in fact, they occur almost daily, and they can sometimes be torrential. In the dry season, from May to October, showers are rare.
in Nosy Be is good from May to October, while it is acceptable in the rainiest months, from December to February, when, apart from showers and thunderstorms, the sun shines for a few hours a day.
of the South-West Indian Ocean, which, in any case, are more common from January to March.
in Nosy Be is warm enough to swim in all year round, since the water temperature ranges from 26 °C (79 °F) between July and October to 29 °C (84 °F) between January and April.
to go to Nosy Be goes from mid-May to October. In the first half of May, usually, the weather is already good, but there is still some risk, though low, of tropical cyclones, as happened with cyclone Kesiny, which affected this area around May 10, 2002.
. Here are the average temperatures.
January is generally a very hot, muggy month. The average temperature is of
27.7 °C, with a minimum of
23.9 °C and a maximum of
31.5 °C.
On the coldest nights of the month, the temperature usually drops to around
22.5 °C.
On the warmest days of the month, the temperature usually reaches around
34 °C.
Precipitation amounts to
392.9 mm, distributed over 20 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
7.4 kph.
The average sea temperature is of
28.9 °C. Therefore, the sea is pleasantly warm and allows long swims.
February is generally a very hot, muggy month. The average temperature is of
27.8 °C, with a minimum of
24 °C and a maximum of
31.5 °C.
On the coldest nights of the month, the temperature usually drops to around
22.5 °C.
On the warmest days of the month, the temperature usually reaches around
34.5 °C.
Precipitation amounts to
334.3 mm, distributed over 17 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
7.1 kph.
The average sea temperature is of
29 °C. Therefore, the sea is pleasantly warm and allows long swims.
March, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
24.1 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
20.5 °C.
On the warmest days of the month, the temperature usually reaches around
34.5 °C.
Precipitation amounts to
280.9 mm, distributed over 16 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
6.4 kph.
The average sea temperature is of
29.2 °C. Therefore, the sea is pleasantly warm and allows long swims.
April is generally a very hot, muggy month. The average temperature is of
28 °C, with a minimum of
23.7 °C and a maximum of
32.2 °C.
On the coldest nights of the month, the temperature usually drops to around
21.5 °C.
On the warmest days of the month, the temperature usually reaches around
34.5 °C.
Precipitation amounts to
106.2 mm, distributed over 9 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
6.5 kph.
The average sea temperature is of
29.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
May is generally a warm to hot, muggy month. The average temperature is of
26.8 °C, with a minimum of
22.3 °C and a maximum of
31.4 °C.
On the coldest nights of the month, the temperature usually drops to around
18 °C.
On the warmest days of the month, the temperature usually reaches around
34.5 °C.
Precipitation amounts to
34.8 mm, distributed over 5 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
5.7 kph.
The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
June is generally a warm to hot month. The average temperature is of
25.4 °C, with a minimum of
20.6 °C and a maximum of
30.2 °C.
On the coldest nights of the month, the temperature usually drops to around
17 °C.
On the warmest days of the month, the temperature usually reaches around
33 °C.
Precipitation amounts to
29.3 mm, distributed over 4 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 70%.
The average wind speed is of
6.9 kph.
The average sea temperature is of
27.2 °C. Therefore, the sea is pleasantly warm and allows long swims.
July, the coolest month of the year, is generally a warm to hot month. The average temperature is of
24.6 °C, with a minimum of
19.5 °C and a maximum of
29.7 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C.
On the warmest days of the month, the temperature usually reaches around
33 °C.
Precipitation amounts to
21.2 mm, distributed over 3 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 67%.
The average wind speed is of
6.9 kph.
The average sea temperature is of
26.1 °C. Therefore, the sea is warm enough for swimming.
August is generally a warm to hot month. The average temperature is of
24.8 °C, with a minimum of
19.5 °C and a maximum of
30 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C.
On the warmest days of the month, the temperature usually reaches around
33 °C.
Precipitation amounts to
26.7 mm, distributed over 4 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 64%.
The average wind speed is of
7.8 kph.
The average sea temperature is of
25.6 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm to hot month. The average temperature is of
25.6 °C, with a minimum of
20.5 °C and a maximum of
30.6 °C.
On the coldest nights of the month, the temperature usually drops to around
17.5 °C.
On the warmest days of the month, the temperature usually reaches around
33.5 °C.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 62%.
The average wind speed is of
8.4 kph.
The average sea temperature is of
25.8 °C. Therefore, the sea is warm enough for swimming.
October is generally a warm to hot month. The average temperature is of
27 °C, with a minimum of
22.3 °C and a maximum of
31.8 °C.
On the coldest nights of the month, the temperature usually drops to around
19 °C.
On the warmest days of the month, the temperature usually reaches around
35 °C.
Precipitation amounts to
29.8 mm, distributed over 4 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 61%.
The average wind speed is of
9.1 kph.
The average sea temperature is of
26.5 °C. Therefore, the sea is pleasantly warm and allows long swims.
November is generally a very hot month. The average temperature is of
27.6 °C, with a minimum of
23.4 °C and a maximum of
31.9 °C.
On the coldest nights of the month, the temperature usually drops to around
20.5 °C.
On the warmest days of the month, the temperature usually reaches around
35 °C.
Precipitation amounts to
135 mm, distributed over 10 days.
The day lasts on average 12 hours and 40 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 66%.
The average wind speed is of
8.2 kph.
The average sea temperature is of
27.6 °C. Therefore, the sea is pleasantly warm and allows long swims.
December is generally a very hot, muggy month. The average temperature is of
27.8 °C, with a minimum of
23.9 °C and a maximum of
31.6 °C.
On the coldest nights of the month, the temperature usually drops to around
21 °C.
On the warmest days of the month, the temperature usually reaches around
34 °C.
Precipitation amounts to
302.1 mm, distributed over 16 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
7.2 kph.
The average sea temperature is of
28.5 °C. Therefore, the sea is pleasantly warm and allows long swims.