From January to March, the southern Serengeti and Ndutu region become especially beautiful during the calving season, when hundreds of thousands of wildebeest give birth across the plains. This is also an excellent time for predator sightings, as lions, cheetahs and hyenas follow the herds.
The Great Migration moves through different parts of the Serengeti throughout the year. From around June onwards, the herds gradually move north, with dramatic river crossings usually associated with the northern Serengeti between July and October. As the migration is a natural event influenced by rainfall and grazing conditions, exact timings can never be guaranteed.
Tanzania has two main rainy periods. The short rains usually occur during November and December and often come as brief, refreshing showers rather than continuous rain. The longer rains generally fall between March and May.
The green season transforms the landscape, bringing lush vegetation, dramatic skies and abundant birdlife. There are generally fewer visitors during this period, and in many areas accommodation rates are lower. For travelers who do not mind the possibility of rain, it can be a beautiful and rewarding time to visit.
Along the coast and on the islands of the Indian Ocean, temperatures remain warm throughout much of the year. Conditions vary with the seasons, however, and rainfall and humidity are generally higher during the long rains.
For those planning to climb Kilimanjaro, the drier periods from January to early March and from June to October are generally considered the most favorable, although conditions on the mountain can change quickly at any time of year.
There is, however, no single “best” time to visit Tanzania. For first-time safari travelers, we generally recommend the dry season, when wildlife viewing and travel conditions tend to be at their most predictable. But every season has its own character and advantages, and the right time ultimately depends on what you would most like to experience — whether that is the Great Migration, calving season, lush green landscapes, fewer visitors, Kilimanjaro, cultural experiences, or time by the Indian Ocean.