Tanzania has a tropical climate. In the highlands, temperatures range between 10 and 20 °C (50 and 68 °F) during cold and hot seasons respectively. The rest of the country has temperatures rarely falling lower than 20 °C (68 °F). The hottest period extends between November and February (25–31 °C / 77–87.8 °F while the coldest period occurs between May and August (15–20 °C / 59–68 °F). Annual temperature is 32 °C (89.6 °F). The climate is cool in high mountainous regions.
Tanzania has two major rainfall regions. One is uni-modal (December–April) and the other is bi-modal (October–December and March–May). The former is experienced in southern, south-west, central and western parts of the country, and the latter is found to the north and northern coast.
In the bi-modal regime the March–May rains are referred to as the long rains or Masika, whereas the October–December rains are generally known as short rains or Vuli. As this country lies near the equator, the climate is hot and humid. The easterlies winds cause rainfall in the eastern coastal region
