andamanensis occurs only on the Andaman archipelago, in the Gulf of
Bengal, between India and Myanmar. This is almost 5000 km away from the
heart of the distribution area of the genus Phelsuma, Madagascar.
When Phelsuma andamanensis established itself on the Andaman
islands is uncertain, but it must have been by passive radiation. The
animals occur on all the larger islands of the archipelago, including
North-, Middle-, South-, Little-Andaman, Rutland, Interview and on the
Phelsuma andamanensis lives on Banana trees, coconut
palms, screw pines and on Sisal plants. It is often found in plantations
and in and around gardens. The climate on the Andaman Islands is warm
and humid all year round, with temperatures ranging from 24° C to 32° C,
an average rainfall of 3200 mm and an average relative humidity of 75%.