Tanzania is a huge country with much regional variation in Weather & Climate. There are mainly two distinct seasons are experienced, the dry and the rainy. If you have the interest to catch the movement of the Great Wildebeest Migration Safari, then November and August can be The Best Time For Visiting Tanzania. But you need to be in the right place at the right time. Game viewing is at its best from June to October. If hiking adventure is the thing you love, for Climbing Mount Kilimanjaro July to October or January to March is The Best Time For Climbing. The islands of Zanzibar are best between August and October. So anytime you choose, Tanzania has everything to amaze everyone.