What is the Great Wildebeest Migration?
The Great Wildebeest Migration is the largest overland animal movement on Earth. Every year, approximately 1.5 million wildebeest, 250,000 zebra, and 500,000 gazelle traverse a 1,200 km circular route through Tanzania's Serengeti ecosystem and into Kenya's Masai Mara, driven entirely by rainfall patterns and the search for fresh grass. There is no start and no end — the migration is a continuous, year-round journey.
Month-by-Month Migration Calendar
January–February (Southern Serengeti / Ndutu): Calving season. Up to 500,000 wildebeest calves are born within a few weeks. Predator activity is intense — the plains are alive with cheetah, lion, and hyena hunting. This is one of the most dramatic wildlife spectacles on Earth.
March–May (Central Serengeti): The herds begin moving north after the short rains. The landscape is green and beautiful. Mating season begins in May with thunderous rutting behaviour.
June–July (Western Corridor): The herds reach the Grumeti River, with some crossings visible from late June. Massive Nile crocodiles lie in wait.
July–October (Northern Serengeti / Masai Mara): The iconic Mara River crossings. Tens of thousands of animals plunge into crocodile-infested waters in chaotic, breathtaking surges. This is the most requested time to visit.
November–December (Eastern Serengeti): The herds return south following the short rains. A quieter, often overlooked time with beautiful light and fewer visitors.
How to See the Migration
Book with a reputable local operator in Arusha who tracks herd movements in real time. Positioning is everything — an experienced guide will know where the crossings are most likely to happen on any given day. A minimum of 4–5 days in the Serengeti is recommended to maximise crossing opportunities.