Climate averages 1991–2020
Mahajanga weather
in September.
A hot, very dry month: the 3rd warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Mahajanga: daytime highs average 32.6°C and nights cool to about 21.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 2.8 mm of rain on fewer than one day, which makes September a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.
The nearest other city in this atlas is Mamoudzou (347 km away). In September its highs average 26.1°C, 6.5°C cooler than Mahajanga, with 12 mm of rain.
Among the 12 cities listed in Madagascar, Mahajanga ranks 1st of 12 for the warmest September highs and 2nd of 12 for the driest September (rainfall, lowest first). The mean September high of those 12 cities is 25.2°C; Mahajanga is 7.4°C warmer than that mean.
From September to October, average highs rise by 0.9°C to 33.6°C, and monthly rainfall rises from 2.8 mm to 17 mm.
The annual picture
September 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, selected | 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 | 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
September in nearby cities
- Mamoudzou in SeptemberMayotte · 347 kmHigh 26.1°C · Low 23.6°C · 12 mm rain
- Antananarivo in SeptemberMadagascar · 378 kmHigh 22.9°C · Low 11.3°C · 5.1 mm rain
- Imerintsiatosika in SeptemberMadagascar · 378 kmHigh 23.4°C · Low 11.2°C · 7.1 mm rain
- Toamasina in SeptemberMadagascar · 425 kmHigh 23.5°C · Low 19.4°C · 76 mm rain
- Antalaha in SeptemberMadagascar · 435 kmHigh 25.4°C · Low 20.0°C · 43 mm rain
- Sambava in SeptemberMadagascar · 444 kmHigh 25.5°C · Low 19.9°C · 88 mm rain
- Antanifotsy in SeptemberMadagascar · 450 kmHigh 21.3°C · Low 9.0°C · 12 mm rain
- Antsirabe in SeptemberMadagascar · 468 kmHigh 23.3°C · Low 9.7°C · 10 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.