Antananarivo (Madagascar) weather in October
October in Antananarivo: warm, dry, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#5 of 12 months in Antananarivo · #158 of 1413 destinations to visit in October · comfort 89/100 (tier A)
- Days
- 28°C
- Nights
- 14°C
- Wet days
- 5
- Sun
- 10.9 h
- Humidity
- 66%
- Daylight
- 13 h

Traveller notes on Antananarivo in October
October closes the dry season here, and regulars are careful with the packing advice: bring something long-sleeved for the evenings, but do not overdo the warm clothes - nothing heavy is needed. Our row shows why both halves of that hold: 28.3C by day against 13.8C at night, a fourteen-degree fall that belongs to the altitude rather than the season. Rain is still light at 24.8mm across 4.6 days, though they warn it arrives in earnest towards the end of the month, so a late-October trip is racing it. The landscape is green by now and this is one of the better months for wildlife. The record: humidity 66 percent, 10.9 hours of sun, a 16.2 kph wind and AQI 41.
Other months in Antananarivo
Regulars are consistent this counts among the cooler, drier months here, part of the dry season running from May through October, with this specific city named as one of the coldest spots in the country alongside Antsirabe and Fianarantsoa at this elevation. Our row backs that cool, genuinely dry read, 21.6C over 9.6C nights feeling 7C, with rain essentially absent, 5.5mm across under a day, and humidity at 76 percent. Regulars are specific a warm layer, a cardigan or fleece, is genuinely useful for this month despite Madagascar's tropical reputation, mornings and evenings running cool enough to need it. This remains a genuinely comfortable, low-humidity stretch for overland travel and outdoor activities. The record: 8.3 hours of sun, an 18.2 kph wind and one of the cleanest air readings in this project, AQI 30.
June is the month regulars pick for value rather than for perfection: popular but not peak, so prices stay low and the crowds thin. They are precise that the only genuinely cold part of Madagascar is the central plateau, and they name this city among the coldest places on it - upper 60s to low 70s by day and upper 40s to low 50s at night, which is our row to the degree at 22.4C over 10.5C. Rainfall is falling away but the technical dry season has not quite arrived, so expect sporadic showers between bright spells; ours is 13.1mm across 2.3 days. The record: humidity 77 percent, 8.6 hours of sun, a 17 kph wind and AQI 37.
May opens Madagascar's dry season, which runs to October, and regulars call May and June the shoulder: comfortable weather, lower prices, and no real need to book hotels ahead - a rare thing to be able to say about any month in this collection. The local caveat is about altitude. The only part of the country that genuinely gets cold is the central plateau, and Antananarivo sits on it; our row's 24.5C day falling to 12.9C at night is that, comfortable by day and properly cool after dark. The other trade-off is wildlife: May starts to cool and some creatures become less active. Rain has largely stopped at 6.4mm across 2.1 precipitation days, though regulars note the old patterns have become less reliable. The record: humidity 78 percent, 9 hours of sun, a 16 kph wind and AQI 39.
August is mid-winter in Madagascar's highlands, and the Madagascar forum keeps correcting the same assumption: the coast is sunny and hot, but around Antananarivo it is genuinely cool, and July and August are the coolest months of the year. They are also the busiest, on European school holidays, with the popular parks full. The trade-off worth weighing is wildlife - this is when animals show themselves least, with reptiles and the smaller lemurs hibernating through the cold months, so a trip built around lemurs is better later in the year. What August does deliver is settled weather across the April-to-October season. The record for Tana: 23.5C days against 10.1C nights, one precipitation day in the month, 9.3 hours of sun and AQI 28.
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Antananarivo climate normals — October
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Antananarivo in October
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Antananarivo's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherAntananarivo's best weather comes in May, August and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Antananarivo in October
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Madajazzcar
1–20 Oct · usuallyMusic festivalThe capital's jazz festival, running most of October across Antsahamanitra and the gardens at Antaninarenina, mixing Malagasy players with whoever has flown in for it. Source ↗
- Nature
Jacarandas at Lake Anosy
1 Oct – 15 Nov · usuallyLake Anosy and the streets climbing to Antaninarenina go purple from the middle of October. It is the couple of weeks the city itself is worth stopping for, rather than the airport you pass through.
Where is Antananarivo?
Antananarivo in October — FAQ
- Is October a good time to visit Antananarivo?
- October in Antananarivo: warm, dry, with clean air — an excellent time to visit. It ranks #5 of 12 months for Antananarivo on SeasonMap's comfort score (89/100).
- What is the weather like in Antananarivo in October?
- In October, Antananarivo averages a daily high of 28.3°C and a low of 13.8°C, with about 24.8 mm of rain over roughly 4.6 rainy days.
- What is the air quality in Antananarivo in October?
- Antananarivo has a mean US Air Quality Index of about 41 in October.