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Madagascar MadagascarIsland

Madagascar

587,713 km² rising to 2,876 m out of the Mozambique Channel.

When to go

Madagascar seen from space, cut out from the sea (Sentinel-2)
AntananarivoToamasinaAntsirabeFianarantsoaToliaraAntsirananaSambava
N 100 km

Satellite: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0). Outline and points © OpenStreetMap contributors / Natural Earth. North up.

In numbers

587,713km²

Area

5,237km

Coastline

measured on a simplified outline

2,876m

Highest point

Maromokotro

26,000,000

People

29°C

Warmest sea

February

293km

To the mainland

When to go to Madagascar

Best for the beach in September.

The sea is warmest in February (29 °C) and coolest in August (24 °C). You can swim comfortably all year (21 °C or more).

Sea temperature (the water level) Air: night low to afternoon high Wet days Best months

Averages 1991–2020. Sea: NOAA OISST, the water within 35 km of the coast. Air, rain and sun: NASA POWER. Best months weigh warm afternoons (23–30 °C), sea of 24 °C or more and few wet days.

Island in the Indian Ocean, part of the country Madagascar

Madagascar is an island in Madagascar. It covers 587,713 km², with 5,237 km of coastline. Its highest point, Maromokotro, rises to 2,876 m. About 26,000,000 people live on it. The nearest mainland is 293 km away.

Read more on Wikipedia

Getting there

Plan the trip

Ferries, stays and things to do

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

On the island

What you find on Madagascar.

This island is too large to count beaches and viewpoints in a meaningful way.

Cross-checked with our atlases

Madagascar in our other atlases

Everything Coastya, Peakyas, Lakeyas and Cascadyas know about what lies inside Madagascar, each with its own numbers.

  • 2beaches and covesCoastya
  • 48lakesLakeyas
  • 9waterfallsCascadyas
  • Tallest waterfall

    300m

    Riandahy Falls

    according to Cascadyas

  • Largest lake

    173km²

    Lake Alaotra

    2 m deep · according to Lakeyas

  • Deepest lake

    4m

    Lake Ihotry

    according to Lakeyas

  • Warmest lake

    33.1°C

    Lake Ampanomboha

    surface water, warmest month · according to Lakeyas

  • Beach with the warmest sea

    29.6°C

    Plage d’ Amborovy

    sea in the warmest month · according to Coastya

2 beaches

on Coastya, the beach atlas

  1. Plage d’ Amborovy29.6°C
  2. Anse Ampanolahanacove28.5°C

Open Coastya ↗

48 lakes

on Lakeyas, the lake atlas

  1. Lake Alaotra2 m deep173km²
  2. Lake Ihotry4 m deep167km²
  3. Lake Kinkony155km²
  4. Lake Nosive43.8km²
  5. Lake Itasy30.8km²
  6. Lake Tsimanampetsotsa2 m deep16.1km²
  7. Lake Mantasoa11.0km²
  8. Lake Anosy0.15km²

40 more on LakeyasLakeyas is coming soonOpen Lakeyas ↗

9 waterfalls

on Cascadyas, the waterfall atlas

  1. Riandahy Falls300m
  2. Rianbavy Falls250m
  3. Sakaleona Falls200m
  4. Antomboka River62m
  5. Mahamanina Falls60m
  6. Mandraka Falls
  7. Andriamamovoka Falls
  8. Humbert Falls

1 more on CascadyasCascadyas is coming soonOpen Cascadyas ↗

Size, for real

Next to islands you may know.

Madagascar587,713 km²
Borneo733,848 km²
Greenland2,096,050 km²

1,000 km

All outlines drawn to the same scale (Natural Earth and OpenStreetMap).

Towns on the island

  • Antananarivo1,349,501 people
  • Toamasina345,107 people
  • Antsirabe260,907 people
  • Fianarantsoa203,105 people
  • Toliara178,725 people
  • Antsiranana136,959 people
  • Sambava89,003 people
  • Imerintsiatosika74,085 people
  • Antalaha71,898 people
  • Tôlanaro71,258 people
  • Antanifotsy70,626 people
  • Ambovombe69,265 people

Month by month

The weather on the island.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon high (°C)232323222119182023252524
Night low (°C)15151412108779121415
Sea (°C)282929282726252425262728
Rain (mm)483358263124372530172076209349
Wet days2825231587854122026
Sun h/day7.77.98.69.49.49.49.610.210.510.29.89.0
Wind (km/h)121212111113141413111111

Averages 1991–2020 for the ~55 km NASA POWER cell over the island; the sea from NOAA OISST.

Recent years

Warmer and cooler years at sea.

Each month's sea temperature compared with its 1991–2020 average, in degrees.

JanFebMarAprMayJunJulAugSepOctNovDec
2020+0.5+0.2−0.2−0.3−0.3−0.3−0.1−0.2−0.1+0.2±0.0±0.0
2021+0.7+0.7+0.3±0.0−0.2−0.1+0.1±0.0±0.0−0.2+0.2+0.1
2022+0.4−0.2−0.1+0.1−0.2−0.3−0.3+0.1±0.0±0.0+0.2±0.0
2023±0.0−0.1+0.2+0.3+0.3+0.3+0.2+0.5+0.7+1.0+0.9+0.7
2024+0.7+0.5+0.6+0.4+0.1+0.3+0.7+0.9+0.9+0.7+1.0+0.7
2025+1.0+1.0+0.4+0.9+0.4+0.1+0.2±0.0+0.6+0.2+0.4+0.4

+1 warmer than usual −1 cooler than usual

Photos

Seen by visitors.

75-MADAGASCAR
anmede · CC BY-SA 2.0
Ankazobe Madagascar landscape
Mammysou17 · CC BY-SA 4.0
22-MADAGASCAR
anmede · CC BY-SA 2.0
Aire de repos au milieu de la forêt d'Imaintsoanala, RN2 - Madagascar
Anai171 · CC BY-SA 4.0

About these numbers

Names, area, populationWikidata (Q7463928) · CC0
OutlineNatural Earth · public domain
Sea temperatureNOAA OISST v2.1 · 1991–2020
ClimateNASA POWER · 1991–2020
Relief, 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
Beaches, ports, lighthouses, trails© OpenStreetMap contributors · ODbL
TownsGeoNames · CC BY 4.0
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Beaches, mountains, lakes and waterfallsCoastya, Lakeyas, Cascadyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; NOAA OISST; HydroLAKES (Messager et al. 2016) · CC BY 4.0, LakeTEMP (Korver et al. 2024) · CC BY 4.0

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.You are here
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit