Climate averages 1991–2020
Mahajanga weather
in December.
A hot, very wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Mahajanga: daytime highs average 31.2°C and nights cool to about 24.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 205 mm of rain on roughly 24 days, which makes December a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 02 min on an average December day.
The nearest other city in this atlas is Mamoudzou (347 km away). In December its highs average 27.9°C, 3.3°C cooler than Mahajanga, with 109 mm of rain.
Among the 12 cities listed in Madagascar, Mahajanga ranks 2nd of 12 for the warmest December highs and 8th of 12 for the driest December (rainfall, lowest first). The mean December high of those 12 cities is 27.6°C; Mahajanga is 3.7°C warmer than that mean.
From December to January, average highs fall by 1.5°C to 29.7°C, and monthly rainfall rises from 205 mm to 431 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
Mahajanga climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.7°C24.4°C | 24.4°C | 431 | 28.4 | 12.913 h |
| February | 29.7°C24.4°C | 24.4°C | 315 | 24.2 | 12.613 h |
| March | 30.7°C24.6°C | 24.6°C | 197 | 21.0 | 12.212 h |
| April | 31.9°C24.5°C | 24.5°C | 43 | 8.3 | 11.812 h |
| May | 31.8°C23.3°C | 23.3°C | 6.4 | 1.1 | 11.411 h |
| June | 30.6°C21.6°C | 21.6°C | 0.8 | 0.2 | 11.211 h |
| July | 30.3°C20.7°C | 20.7°C | 1.2 | 0.2 | 11.311 h |
| August | 31.3°C20.9°C | 20.9°C | 1.2 | 0.2 | 11.612 h |
| September | 32.6°C21.9°C | 21.9°C | 2.8 | 0.6 | 12.012 h |
| October | 33.6°C23.6°C | 23.6°C | 17 | 4.3 | 12.412 h |
| November | 32.9°C24.5°C | 24.5°C | 80 | 15.0 | 12.813 h |
| December, selected | 31.2°C24.6°C | 24.6°C | 205 | 23.9 | 13.013 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
- Mamoudzou in DecemberMayotte · 347 kmHigh 27.9°C · Low 25.9°C · 109 mm rain
- Antananarivo in DecemberMadagascar · 378 kmHigh 25.7°C · Low 16.4°C · 181 mm rain
- Imerintsiatosika in DecemberMadagascar · 378 kmHigh 25.5°C · Low 16.3°C · 212 mm rain
- Toamasina in DecemberMadagascar · 425 kmHigh 27.4°C · Low 23.2°C · 186 mm rain
- Antalaha in DecemberMadagascar · 435 kmHigh 28.9°C · Low 23.3°C · 173 mm rain
- Sambava in DecemberMadagascar · 444 kmHigh 29.2°C · Low 23.4°C · 179 mm rain
- Antanifotsy in DecemberMadagascar · 450 kmHigh 23.6°C · Low 14.2°C · 308 mm rain
- Antsirabe in DecemberMadagascar · 468 kmHigh 24.2°C · Low 14.8°C · 333 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 Mahajanga) is explained once on the Mahajanga year overview and on the Sources, method and limits page.