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Île aux Nattes

Island

Beside Nosy Boraha (Île Sainte‑Marie), Île aux Nattes offers palm-fringed beaches, coral reefs and simple guesthouses; visitors come for snorkeling, slow island life and coastal walks.

Île aux Nattes AntananarivoAvenue of the BaobabsNosy BeÎle aux Nattes
In this guide

Île aux Nattes essentials

Address: Île aux Nattes (Nosy Nato), near Sainte-Marie (Île Sainte‑Marie), Madagascar
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About Île aux Nattes

Île aux Nattes (Nosy Nato) is a small island immediately south of Île Sainte-Marie (Nosy Boraha) off Madagascar’s east coast, noted for sandy beaches and nearshore coral reef. The island is low-lying and compact, with most facilities concentrated near the narrow channel that separates it from Sainte-Marie.

Visitors come for sheltered swimming, snorkeling on the fringing reef and a quiet island atmosphere with a small number of guesthouses and beachside services. Local boats provide frequent short transfers to and from Île Sainte-Marie and the islands are commonly visited together.

Geographically the island sits off Madagascar’s eastern seaboard within Analanjirofo administrative area, at the southern tip of the larger Île Sainte-Marie.

  • Access and snorkeling: Short pirogue or boat crossings link the island to Île Sainte-Marie and the narrow channel between them is popular for short snorkel trips to nearby fringing reef areas.
When to Go

Best Time to Visit Île aux Nattes

The dry season (roughly April-November) is the preferred time for visits.

Dry season
April-November · 22-28°C
Easier sea conditions and more comfortable weather for beach visits and whale watching (seasonal).

Weather & Climate near Île aux Nattes

Climate

Tropical climate with consistently warm temperatures year-round. Temperatures range from 20°C to 30°C. Heavy rainfall (3233 mm/year), wettest in March.

Air Quality: AQI 24 Good
Best Time to Visit
OctoberSeptemberNovember
Temperature & Rainfall
Temperature Range
31°
Warmest Month
19°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Good 24° - 30° 30° 329 mm overcast 82% 2.7 m/s 2.7 extreme 12.9h
February Good 24° - 30° 30° 429 mm overcast 82% 2.6 m/s 2.6 extreme 12.6h
March Good 24° - 30° 27° 469 mm overcast 82% 2.9 m/s 2.3 extreme 12.1h
April Good 23° - 29° 26° 404 mm partly cloudy 80% 2.9 m/s 1.9 very high 11.6h
May Good 22° - 28° 25° 316 mm overcast 78% 2.9 m/s 1.5 high 11.2h
June Good 20° - 27° 23° 261 mm overcast 76% 3.7 m/s 1.2 high 11.0h
July Good 20° - 25° 23° 270 mm overcast 76% 3.7 m/s 1.3 high 11.1h
August Good 20° - 26° 23° 191 mm overcast 76% 3.6 m/s 1.5 very high 11.4h
September Very Good 20° - 26° 23° 103 mm partly cloudy 77% 3.5 m/s 1.9 very high 11.9h
October Very Good 21° - 28° 24° 77 mm partly cloudy 78% 3.7 m/s 2.2 extreme 12.4h
November Very Good 22° - 29° 26° 110 mm partly cloudy 79% 3.3 m/s 2.5 extreme 12.8h
December Good 24° - 30° 27° 274 mm partly cloudy 80% 2.6 m/s 2.7 extreme 13.0h
Getting There & Around

How to Get to Île aux Nattes

Access via small boat from Île Sainte‑Marie (Nosy Boraha); boats and pirogues make regular crossings depending on tides and schedules.

Tips for Visiting Île aux Nattes

  • Consult local guides for the best anchorages and small-scale accommodation information.
  • Use mooring buoys where provided-reef damage is a real risk around small Malagasy islets.