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Madagascar — Sea Water Temperature and Annual Ranges

Up-to-date sea water temperatures for the coasts of Madagascar. Learn about today’s conditions, monthly averages, and how the surrounding seas and oceans vary by season. We find every place where you can swim and show you the water temperature there today and throughout the year.

Madagascar
Madagascar © Bernard Gagnon, CC BY-SA 3.0

Sea Water Temperature Along the Coast

23.9°C
minimum
26.5°C
average
28.4°C
maximum
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Chart of Average Temperature Changes Over the Last 60 Days

From April 13 to June 13

Places with the Warmest Sea Water Today

28°C
Nosy Be
27°C
Mahajanga
27°C
Antsiranana
27°C
Sambava
27°C
Toamasina
27°C
Ile aux Nattes
27°C
Ile Sainte-Marie
27°C
Mananara Avaratra
27°C
Maroantsetra
26°C
Morondava
26°C
Toliara
24°C
Taolagnaro

The Most Popular Seaside Places

Coastal Seas and Oceans

Water Temperature and Swimming Overview

Regions and Map

Water Temperature Trends

Madagascar’s coastal waters are generally warm year-round, though temperatures vary by region and season. In the northern and northwest islands such as Nosy Be and along much of the east coast, sea temperatures in the austral summer (December to March) typically range from about 27–30 °C (81–86 °F). During the cooler austral winter months (June to August) those same areas commonly see 22–25 °C (72–77 °F). The southern and southeastern coasts are slightly cooler, especially in winter, with water temperatures that can dip to around 19–22 °C (66–72 °F). Transitional seasons (spring and autumn) are moderate, often falling between 23–27 °C (73–81 °F) depending on local currents and weather.

Swimming Conditions

Swimming is widely possible around Madagascar because the sea rarely approaches temperatures that would prevent recreation, and many beaches and lagoons are popular for bathing, snorkeling and diving. However, conditions can make swimming unsafe at times: the cyclone season and heavy rains (mainly November to April) produce rough seas, strong currents and poor visibility, and some areas have significant surf or rip currents year-round. Remote beaches often lack lifeguards and medical services, and seasonal jellyfish or coral-related hazards can occur. Swimmers should choose sheltered bays or beaches with local guidance, heed warnings, and consider a protective suit for cooler winter conditions or extended snorkeling.