Nosy BePhoto: Thomas Fuhrmann · CC BY-SA 4.0Madagascar · Africa
Best time to visit Nosy Be
Nosy Be is Madagascar's best-known island paradise: warm sea, palm beaches, lemurs and ylang-ylang plantations. Hot all year, rainy season November to March.
Climate decision
Best travel months for Nosy Be
Joint highest scores
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Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
May · Wet days
12.4 days/month
1991–2025: 7.5 days/month
+4.9 days/month · higher
April · Monthly precipitation
196.2 mm/month
1991–2025: 100 mm/month
+96.2 mm/month · higher
December · Mean daily maximum
29.9 °C
1991–2025: 29.4 °C
+0.6 °C · higher
April · Sea temperature
30.3 °C
1991–2025: 29.9 °C
+0.5 °C · similar
November: 73/150 days at or above 30 °C; highest single value 33.2 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Rainfall rhythm
Nosy Be: rainfall separates the travel months
The driest and wettest months are 26.1 rainy days apart. Average daily highs vary by 2.4 °C, so both signals matter when choosing a month.
What matters
A warmer month is not automatically the most reliable. Read the drier windows alongside sunshine, sea temperature and the activity you have in mind.
Fewest rainy days
August · 2.3
Most rainy days
January · 28.4
Most sunshine
October · 8.6 h
Warmest sea
April · 29.9 °C
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 29 | 26 | 28 | 296 | 7.2 | 82 | 2.1 | 29 | 55 |
| February | 29 | 26 | 26 | 247 | 7.2 | 83 | 2.1 | 29 | 56 |
| March | 29 | 26 | 26 | 227 | 7.3 | 82 | 1.8 | 30 | 55 |
| April | 29 | 26 | 18 | 100 | 7.2 | 78 | 1.4 | 30 | 58 |
| May | 29 | 25 | 7 | 30 | 6.6 | 73 | 1.4 | 29 | 78 |
| June | 28 | 24 | 3 | 11 | 6.2 | 69 | 1.4 | 28 | 87 |
| July | 27 | 23 | 2 | 10 | 6.4 | 68 | 1.4 | 27 | 91 |
| August | 27 | 23 | 2 | 9 | 7.2 | 69 | 1.5 | 27 | 91 |
| September | 28 | 23 | 3 | 12 | 8.2 | 69 | 1.5 | 27 | 89 |
| October | 29 | 24 | 6 | 23 | 8.6 | 71 | 1.6 | 28 | 83 |
| November | 30 | 25 | 16 | 90 | 8.3 | 74 | 1.8 | 28 | 62 |
| December | 29 | 26 | 26 | 208 | 7.8 | 79 | 1.8 | 29 | 55 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
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Where to stay in Nosy Be
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Similar destinations
The number is the overall climate score, not a similarity score.
Frequently asked questions
When is the best time to visit Nosy Be?
The strongest climate months are June, July, August, September. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Nosy Be?
The average daily maximum temperature in Nosy Be is highest in November at around 30 °C.
When is the sea warmest at Nosy Be?
In April, at around 30 °C.