Antalaha is a commune (Malagasy: kaominina) in northern Madagascar. It belongs to the district of Antalaha, which is a part of Sava Region. According to 2004 census the population of Antalaha was 34112.
Antalaha has a maritime harbour. In addition to primary schooling the town offers secondary education at both junior and senior levels. The town has a permanent court and hospital.
Farming provides employment for 40% of the working population. The most important crop is vanilla, while other important products are cloves and rice. Industry and services provide employment for 30.00% and 29.98% of the population, respectively. Additionally fishing employs 0.02% of the population.
Antalaha experiences a humid equatorial climate (Koppen Af) with prodigious rainfall all year-round. The heaviest rainfall, highest humidity, and hottest temperatures are typically observed from December to April, the wettest month being January, receiving a copious average of 358.1 mm (14.10 in) of total precipitation. The driest month is September, receiving an average of 90.9 mm (3.58 in) of precipitation. The months from May to November are slightly drier, cooler, and less humid. Despite this, hot temperatures, high humidity, and high rainfall dominate year-round in Antalaha.