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 road travel difficult. The hot, dry weather in January and February attracts the most tourists. Zanzibar has a warm climate year-round and its coastal resorts are tempered by sea breezes. The island is best avoided in April and May, the rainy season.The best time to visit the Serengeti is from January to March when the grazers are calving and there are plenty of lions around. The famous wildebeest migration takes place over a number of months, roughly at the onset of the dry season and again with the first rains. Depending on where travellers want to be to watch the migration and what stage they want to witness they can visit anytime between April and mid-November.
