Antananarivo weather in September
September in Antananarivo: nice, dry, with clean air — one of the best months to visit.
#1 of 12 months in Antananarivo · #1 of 604 destinations to visit in September · comfort 95/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Antananarivo climate normals — September
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Feels like (high) | 21°C / 70°F | |
| Rainfall | 3 mm / 0.1 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 10 h/day | |
| Daylight | 12 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Antananarivo?
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Antananarivo in September — FAQ
- Is September a good time to visit Antananarivo?
- September in Antananarivo: nice, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Antananarivo on SeasonMap's comfort score (95/100).
- What is the weather like in Antananarivo in September?
- In September, Antananarivo averages a daily high of 22.6°C and a low of 11.3°C, with about 3.3 mm of rain over roughly 1.4 rainy days.
- What is the air quality in Antananarivo in September?
- Antananarivo has a mean US Air Quality Index of about 29 in September.