This ecoregion spans the Andaman Islands, part of an archipelago that continues southward to the Nicobar Islands in the Bay of Bengal. Over 2,500 flowering plant species have been recorded from these small islands, of which 10% are endemic. The equatorial, oceanic climate is pleasant and tropical, with temperatures ranging from 22°to 30°C. Annual rainfall is around 3,000–3,800 mm and falls mostly during the monsoons, during which cyclonic winds and thunderstorms can be frequent. The vegetation transitions from coastal and mangrove forests to evergreen and deciduous forests inland. The mangroves are dominated by species of the family Rhizophoraceae, while the inland forests are dominated by trees in the family Dipterocarpaceae that are typical in Asian mainland forests.