The climate is tropical with a distinct warm period (December–April), during which the temperatures rise above 32 °C (89.6 °F), and a cooler period (May–November), with temperatures rarely rising above 27 °C (80.6 °F).
The government provides comprehensive medical and dental facilities for residents and visitors. There are hospitals in Vaiola (Tongatapu), Hihifo (Ha'apai) and Neiafu (Vava'u), which will treat minor ailments and dispense medicines.
The island of 'Eua, a 10-minute flight away from Tongatapu, has a blend of modern comfort (the island has one hotel and a motel) and the traditional South Sea island lifestyle. Many species of exotic bird live on the island.