Land and Resources, Climate
sea control, Wete, Pemba, sea breeze, Indian Ocean
Elevation and distance from the sea control the climate of Tanzania. On the mainland coastal strip along the Indian Ocean, the climate is warm and tropical, with temperatures averaging 27°C (80°F) and rainfall varying from 750 to 1,400 mm (30 to 55 in). The inland plateau is hot and dry, with annual rainfall averaging as little as 500 mm (20 in). The semitemperate highlands in the southwest are better watered.
The climate on the islands is generally tropical, but the heat is tempered by a sea breeze throughout the year. The annual mean temperature for the city of Zanzibar is 29°C (85°F) maximum, and 25°C (77°F) minimum; for Wete in Pemba, 30°C (86°F) maximum and 24°C (76°F) minimum. Most rain falls from December through May. Tanzania also can experience substantial fluctuations in rain amounts from one year to the next.
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