Madagascar · 13.31°S 48.26°E · monthly climate normals, judged against the Tropical preset (mean 24–33 °C75–91 °F, anything but the monsoon)
The best time to visit Nosy Be is August to November and April to June, when mean temperatures run from 24 °C75 °F to 27 °C81 °F and rainfall runs 32–144 mm1.3–5.7 in a month.
The monsoon runs December to March, with 288–504 mm11–20 in a month and peaking in January at 504 mm20 in. March is the hottest month at 28 °C82 °F and July the coldest at 24 °C75 °F.
Figures are 30-year monthly averages (WorldClim 2.1 monthly normals 1970–2000) for the 0.25° grid cell at -13.31, 48.26 — a climate guide, not a forecast.
Pick the weather you like and every month is judged against it — temperature above the month names, rain below.
Good time to go for a Tropical holiday: August to November and April to June.
Open Nosy Be on the interactive map ↗ the same verdict for every place on Earth, any month
Reading the chart. Gold is good: the month fits what you picked. Any other colour names the reason it doesn't — the temperature bar can be too cold or too hot, the rain bar too dry, too rainy or monsoon. A faded gold bar is a half that fits while the other half fails; a gold month name means both fit.
What the verdicts mean. Temperature is the monthly mean, judged against the preset's band (mean 24–33 °C75–91 °F for Tropical). Rain is judged by each month's class within Nosy Be's own year rather than raw millimetres: dry under 60 mm2.4 in, showers 60–100 mm2.4–3.9 in, rainy from 100 mm3.9 in and 35 % of the wettest month. Too rainy is a rainy-season month the preset doesn't allow. Monsoon is the heaviest kind of rainy season — 180 mm7.1 in or more (120 mm4.7 in near the yearly peak) in a climate whose wettest month is at least three times its driest — so every monsoon month is rainy season too; the label says which kind. Full rules on the method page.
| Month | Rain | Mean | Season | Tropical verdict |
|---|---|---|---|---|
| January | 50420 | 2780 | monsoon | monsoon |
| February | 43217 | 2781 | monsoon | monsoon |
| March | 28811 | 2882 | monsoon | monsoon |
| April | 1445.7 | 2781 | showers | good |
| May | 481.9 | 2679 | dry | good |
| June | 321.3 | 2475 | dry | good |
| July | 321.3 | 2474 | dry | too cold |
| August | 321.3 | 2475 | dry | good |
| September | 321.3 | 2577 | dry | good |
| October | 642.5 | 2679 | showers | good |
| November | 1365.4 | 2781 | showers | good |
| December | 33613 | 2781 | monsoon | monsoon |
| Looking for | Rule | Months that fit |
|---|---|---|
| Warm | mean 14–24 °C57–75 °F, dry or showers | July |
| Tropical | mean 24–33 °C75–91 °F, anything but the monsoon | August to November and April to June |
| Beach | mean 24–33 °C75–91 °F, dry or showers | August to November and April to June |
| Cool | mean 0–14 °C32–57 °F, anything but the monsoon | |
| Snow | mean below 0 °C32 °F, any rain |
Yes. The monsoon runs December to March, with 288–504 mm11–20 in a month and peaking in January at 504 mm20 in. Outside it, May to September is dry.
March is the hottest month at 28 °C82 °F and July the coldest at 24 °C75 °F. Annual rainfall totals about 2,080 mm82 in.
The nearest destinations that do fit the Tropical preset in the months Nosy Be doesn't:
The interactive map colours the whole world by how it fits your picks in any month, and shows this chart for any place you tap.