Climate averages 1991–2020
Antsiranana weather
in December.
A hot, wet month: the 2nd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Antsiranana: daytime highs average 30.4°C and nights cool to about 23.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 121 mm of rain on roughly 15 days, which makes December a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 50 min on an average December day.
The nearest other city in this atlas is Sambava (237 km away). In December its highs average 29.2°C, 1.2°C cooler than Antsiranana, with 179 mm of rain.
Among the 12 cities listed in Madagascar, Antsiranana ranks 3rd of 12 for the warmest December highs and 2nd of 12 for the driest December (rainfall, lowest first). The mean December high of those 12 cities is 27.6°C; Antsiranana is 2.8°C warmer than that mean.
From December to January, average highs fall by 0.8°C to 29.6°C, and monthly rainfall rises from 121 mm to 244 mm.
The annual picture
December 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 | 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, selected | 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
December in nearby cities
- Sambava in DecemberMadagascar · 237 kmHigh 29.2°C · Low 23.4°C · 179 mm rain
- Antalaha in DecemberMadagascar · 306 kmHigh 28.9°C · Low 23.3°C · 173 mm rain
- Mamoudzou in DecemberMayotte · 444 kmHigh 27.9°C · Low 25.9°C · 109 mm rain
- Mahajanga in DecemberMadagascar · 496 kmHigh 31.2°C · Low 24.6°C · 205 mm rain
- Toamasina in DecemberMadagascar · 649 kmHigh 27.4°C · Low 23.2°C · 186 mm rain
- Moroni in DecemberComoros · 660 kmHigh 30.0°C · Low 25.9°C · 166 mm rain
- Antananarivo in DecemberMadagascar · 757 kmHigh 25.7°C · Low 16.4°C · 181 mm rain
- Imerintsiatosika in DecemberMadagascar · 771 kmHigh 25.5°C · Low 16.3°C · 212 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.