Climate averages 1991–2020
Antalaha weather
in September.
A warm, moderately wet month: the 9th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Antalaha: daytime highs average 25.4°C and nights cool to about 20.0°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 43 mm of rain on roughly 14 days, which makes September a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.
The nearest other city in this atlas is Sambava (71 km away). In September its highs average 25.5°C, about as warm as Antalaha, with 88 mm of rain.
Among the 12 cities listed in Madagascar, Antalaha ranks 5th of 12 for the warmest September highs and 10th of 12 for the driest September (rainfall, lowest first). The mean September high of those 12 cities is 25.2°C; Antalaha is 0.2°C warmer than that mean.
From September to October, average highs rise by 1.5°C to 26.9°C, and monthly rainfall rises from 43 mm to 56 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
Antalaha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.0°C23.7°C | 23.7°C | 294 | 28.2 | 12.913 h |
| February | 29.0°C23.9°C | 23.9°C | 280 | 25.1 | 12.613 h |
| March | 28.6°C23.8°C | 23.8°C | 256 | 25.7 | 12.212 h |
| April | 27.9°C23.4°C | 23.4°C | 123 | 19.8 | 11.812 h |
| May | 26.8°C22.2°C | 22.2°C | 66 | 15.9 | 11.411 h |
| June | 25.1°C20.7°C | 20.7°C | 55 | 15.4 | 11.311 h |
| July | 24.2°C19.7°C | 19.7°C | 66 | 16.4 | 11.311 h |
| August | 24.4°C19.6°C | 19.6°C | 53 | 16.0 | 11.612 h |
| September, selected | 25.4°C20.0°C | 20.0°C | 43 | 13.6 | 12.012 h |
| October | 26.9°C21.1°C | 21.1°C | 56 | 12.7 | 12.412 h |
| November | 28.1°C22.2°C | 22.2°C | 70 | 14.5 | 12.813 h |
| December | 28.9°C23.3°C | 23.3°C | 173 | 22.7 | 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
- Sambava in SeptemberMadagascar · 71 kmHigh 25.5°C · Low 19.9°C · 88 mm rain
- Antsiranana in SeptemberMadagascar · 306 kmHigh 28.7°C · Low 21.0°C · 2.6 mm rain
- Toamasina in SeptemberMadagascar · 373 kmHigh 23.5°C · Low 19.4°C · 76 mm rain
- Mahajanga in SeptemberMadagascar · 435 kmHigh 32.6°C · Low 21.9°C · 2.8 mm rain
- Antananarivo in SeptemberMadagascar · 533 kmHigh 22.9°C · Low 11.3°C · 5.1 mm rain
- Imerintsiatosika in SeptemberMadagascar · 553 kmHigh 23.4°C · Low 11.2°C · 7.1 mm rain
- Mamoudzou in SeptemberMayotte · 594 kmHigh 26.1°C · Low 23.6°C · 12 mm rain
- Antanifotsy in SeptemberMadagascar · 615 kmHigh 21.3°C · Low 9.0°C · 12 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 Antalaha) is explained once on the Antalaha year overview and on the Sources, method and limits page.