Bermuda, is a British Overseas Territory in the North Atlantic Ocean. The closest land outside the territory is in the American state of North Carolina, about 1,035 km (643 mi) to the west-northwest. Bermuda is an archipelago consisting of 181 islands, although the most significant islands are connected by bridges and appear to form one landmass. It has a land area of 54 square kilometers (21 sq mi). Bermuda has a tropical climate, with warm winters and hot summers. Its climate also exhibits oceanic features similar to other coastal areas in the Northern Hemisphere with warm, moist air from the ocean ensuring relatively high humidity and stabilizing temperatures.