Climate averages 1991–2020
Antsiranana weather
in May.
A hot, very dry month: the 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Antsiranana: daytime highs average 29.5°C and nights cool to about 23.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 12 mm of rain on roughly 2 days, which makes May a very dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 33 min on an average May day.
The nearest other city in this atlas is Sambava (237 km away). In May its highs average 27.0°C, 2.5°C cooler than Antsiranana, with 120 mm of rain.
Among the 12 cities listed in Madagascar, Antsiranana ranks 2nd of 12 for the warmest May highs and joint 3rd of 12 for the driest May (rainfall, lowest first). The mean May high of those 12 cities is 24.9°C; Antsiranana is 4.6°C warmer than that mean.
From May to June, average highs fall by 1.2°C to 28.3°C, and monthly rainfall falls from 12 mm to 4.7 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Antsiranana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C24.0°C | 24.0°C | 244 | 24.4 | 12.813 h |
| February | 29.4°C24.1°C | 24.1°C | 222 | 23.9 | 12.513 h |
| March | 29.7°C24.2°C | 24.2°C | 151 | 19.2 | 12.212 h |
| April | 29.9°C24.0°C | 24.0°C | 45 | 7.9 | 11.812 h |
| May, selected | 29.5°C23.1°C | 23.1°C | 12 | 1.9 | 11.612 h |
| June | 28.3°C21.8°C | 21.8°C | 4.7 | 1.2 | 11.411 h |
| July | 27.6°C20.9°C | 20.9°C | 5.5 | 1.3 | 11.511 h |
| August | 27.8°C20.7°C | 20.7°C | 4.1 | 0.9 | 11.712 h |
| September | 28.7°C21.0°C | 21.0°C | 2.6 | 0.7 | 12.012 h |
| October | 29.9°C21.9°C | 21.9°C | 13 | 1.3 | 12.412 h |
| November | 30.5°C23.0°C | 23.0°C | 31 | 4.2 | 12.713 h |
| December | 30.4°C23.8°C | 23.8°C | 121 | 15.3 | 12.813 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Sambava in MayMadagascar · 237 kmHigh 27.0°C · Low 22.1°C · 120 mm rain
- Antalaha in MayMadagascar · 306 kmHigh 26.8°C · Low 22.2°C · 66 mm rain
- Mamoudzou in MayMayotte · 444 kmHigh 27.6°C · Low 25.8°C · 21 mm rain
- Mahajanga in MayMadagascar · 496 kmHigh 31.8°C · Low 23.3°C · 6.4 mm rain
- Toamasina in MayMadagascar · 649 kmHigh 25.0°C · Low 21.6°C · 201 mm rain
- Moroni in MayComoros · 660 kmHigh 28.6°C · Low 25.3°C · 63 mm rain
- Antananarivo in MayMadagascar · 757 kmHigh 21.9°C · Low 13.3°C · 12 mm rain
- Imerintsiatosika in MayMadagascar · 771 kmHigh 21.9°C · Low 12.9°C · 15 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Antsiranana) is explained once on the Antsiranana year overview and on the Sources, method and limits page.