Tanzania - Climate and when to go to Tanzania

Climate

Tanzania's seasonal variations in temperature are not extreme. Tanzania is hot throughout the year and is humid on the coast and dry on the central plateau. The heavy rains last from March to June and can make unsealed road travel difficult. Zanzibar has a warm climate year-round and its coastal resorts are tempered by sea breezes.
General: There are two rain seasons throughout the country: the long season from mid March through May, the short rain seasons falls during November, December, and January. The coolest months are from June to October, and the warmest are December to March.

When to go

While the weather is best between June and September, the animals in the Serengeti will have migrated to Kenya. September-March is a good time to go, but avoid April and May, when the weather is at its rainiest. The best time to visit the Serengeti is from January to March when the grazers are calving and there are plenty of lion around, or to witness the wildebeest migration to and from Kenya which occurs at the onset of the dry season and again with the first rains, usually the beginning of June and mid-November.
Zanzibar is best avoided in April and May, the rainy season.
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