Like most islands in the Bay of Bengal, Andaman and Nicobar too has a tropical climate with humidity about 80% and temperatures varying from 23 ° C to 31 ° C. The North East Monsoon sets in November where as the South West Monsoon towards the end of May. Whether remains more or less uniform throughout the year with neither extreme hot summers nor chilly winters, hence boating, swimming, snorkeling, sight seeing is open all 12 months an year. May to December is the season for nature lovers as the forest is lush green and water falls are at their prime. December to April is the best season for divers where as bird watchers enjoy mostly the winter months.
There are 572 islands in the territory having an area of 8,249 km2 (3,185 sq mi). Of these, only 38 are permanently inhabited. The islands extends from 6 ° to 14 ° North latitudes and from 92 ° to 94 ° East longitudes. The Andamans are separated from the Nicobar group by a channel (the Ten Degree Channel) some 150 km (93 mi) wide. The highest point is located in North Andaman Island (Saddle Peak at 732 m (2,402 ft)). The Andaman group has 325 islands which cover an area of 6,408 km2(2,474 sq mi) while the Nicobar group has only 24 islands with an area of 1,841 km2(711 sq mi).
The capital of the union territory, Port Blair, is located 1,255 km (780 mi) from Kolkata, 1,200 km (750 mi) from Visakhapatnam and 1,190 km (740 mi) from Chennai. The northernmost point of the Andaman and Nicobars group is 901 km (560 mi) away from the mouth of the Hooghly River and 190 km (120 mi) from Burma. Indira Point at 6° 45′ 10″N and 93° 49′ 36″E at the southern tip of the southernmost island, Great Nicobar, is the southernmost point of India and lies only 150 km (93 mi) from Sumatra in Indonesia.