Weather in Antananarivo in September 2025
Average weather
Average temperature in Antananarivo in September
The temperature in September is +24°C on average, with a range between a maximum of +28°C during the day and a minimum of +10°C at night.
The average maximum temperature goes up 11% by the end of the month, compared with the beginning of the month, from +24°C to +26°C.
Is Antananarivo warm or cold in September?
Antananarivo is typically warm in September.
Maximum temperatures go up compared to the previous month from +20°C to +23°C. The minimum temperature also goes up from +10°C to +11°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Antananarivo:
Climate in Antananarivo in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +20°C | +23°C | +25°C | ||||
| Min. temperature | ||||||
| +5°C | +3°C | +8°C | ||||
| Max. temperature | ||||||
| +28°C | +31°C | +33°C | ||||
| Rainfall | ||||||
| 4 mm | 5 mm | 37 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 75% | 72% | 71% | ||||
| Air pressure | ||||||
| 1022 HPa | 1020 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 3 | 5 | 4 | ||||
| Cloudy days | ||||||
| 23 | 20 | 15 | ||||
| Rainy days | ||||||
| 5 | 4 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as good as in August. It’s getting warmer as September arrives. The average maximum temperature goes up from +20°C to +23°C during the day. Prepare for more rain. Average rainfall goes from 4 mm to 5 mm. It feels drier, as humidity decreases from 75% to 72%. The average wind speed doesn’t change much during September, staying around 2 m/s. The good news is there are likely to be more sunny days in September, from 3 to 5.
October brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Antananarivo is gradually increasing during September, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last September in Antananarivo?
Climate Change over Years
The climate in Antananarivo in September has not changed much over the last 43 years.
The average temperature was the lowest in 1985 (+22°C) and the highest in 2019 (+25°C). The driest year was 2006 with only 560 mm of rainfall, and the wettest year was 2015 with 1625 mm.
FAQ
Is September a good time to visit Antananarivo?
Can you sunbathe in Antananarivo in September?
Is Antananarivo rainy in September?
Is it sunny in Antananarivo in September?
Monthly weather in Antananarivo
Source of the data
For this page, we’ve looked at the typical weather in Antananarivo, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.