September · Madagascar
Best time to visit Antananarivo in September Weather, crowds & prices
Weather in Antananarivo in September
Average temperature 15°C, 43 mm of rain, about 28 days with 6+ hours of sunshine and 83% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.0/10
Ranked #1 of 12 months
- Avg temp
- 15°C
- Rainfall
- 43 mm
- Humidity
- 83%
- Days with 6h+ sun
- 28
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Antananarivo scores 9.0/10 for sightseeing and cultural travel - the single best month of the year. Expect around 15°C, 43 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Highland markets and colonial hillsides feel most pleasant in the cooler dry month of July.
September in Antananarivo — the year's strongest window
September averages 15°C (59°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 43 mm of rain — occasional showers rather than washed-out days — alongside about 28 days with 6+ hours of sunshine and 11.9 daylight hours.
On our climate-comfort scale this is the top-ranked month of the year for Antananarivo at 9/10 — the reference point every other month on this page is measured against.
Pack layers you can shed by midday plus one warm layer for the evening.
Figure on peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Antananarivo in September?
- In September, Antananarivo averages 15°C, 43 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 9.0/10.
- Is September a good time to visit Antananarivo?
- September earns a 9.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Antananarivo in September?
- Expect about 43 mm of rain in September. Average humidity is 83% and there are about 28 days with 6+ hours of sunshine.
Curated in Antananarivo
Tickets & experiences
Things to do in Antananarivo
Antananarivo, Madagascar. Live activities and tours from GetYourGuide, matched to this destination.