For Tanzania, the best months to travel to Tarangire are July though November. The migration in the Serengeti takes place from December through to June with the wildebeest calving in February and March, but is dependent on the rains. Mating takes place in May and June and is also a good time to travel there. The rainy season in Kenya is April through May as well as November but it is still a wonderful time for a safari as there are fewer visitors and the savannahs are green and lush. The migration in the Masai Mara in Kenya takes place in August and September but is also dependent on the rains.