The Great Migration 2026: Where to Be in Tanzania and When

What Is the Great Migration?

The Great Migration is not a single event but a continuous year-round movement driven by rainfall and fresh grazing. The herds never stop — they simply shift between the Serengeti's different zones and Kenya's Maasai Mara across the Mara River. What changes by month is where that movement is most dramatic, most visible, and most accessible to visitors.

January – March: Calving Season on the Southern Plains

The short dry season pulls 1.5 million wildebeest to the Ndutu and southern Serengeti short-grass plains, where they give birth. Up to 8,000 calves are born daily at peak calving (late January–February). Predator density explodes — cheetah, lion, and hyena follow the calves. This is one of the most dramatic wildlife spectacles on the planet, and it happens in the southern Serengeti, not the north.

Where to stay: Ndutu area lodges or Serengeti South camps.

April – May: Long Rains — Herds Moving North

The long rains begin and herds start the western migration through the central Serengeti. This is the green season — fewer tourists, lower prices, lush scenery, and newborn animals everywhere. River crossings are not yet happening, but the sheer density of animals on the move through Grumeti is extraordinary. Some camps close — book carefully.

June – July: Western Corridor and Grumeti Crossings

The herds reach the western corridor and begin crossing the Grumeti River — smaller crocodile crossings compared to the Mara, but dramatic. July sees the first major Mara River crossings as the front edge of the migration pushes north. This is when Tanzania's northern Serengeti camps start filling up. Book 8–12 months ahead.

Where to stay: Grumeti Conservancy camps (June), Northern Serengeti camps (July).

August – October: Northern Serengeti — The River Crossings

Peak season. The full herd is in the northern Serengeti and Maasai Mara, crossing the Mara River multiple times in both directions. A single crossing can involve 10,000–50,000 animals — the sound, the dust, the crocodiles rising from the water is unlike anything else in wildlife. August and September are the most reliable months for multiple crossings. October sees the herds starting south.

Where to stay: Kogatende area camps, north of the Mara River.

November – December: Return South — Short Rains

The short rains begin and herds move back south through the central and eastern Serengeti. November is one of the most underrated months — the grass is green, the animals are everywhere, and there are far fewer vehicles. Excellent birding as migratory birds arrive from Europe.

Which Month Is Best for the Great Migration?

There is no single best month — it depends what you want to see. For river crossings: August–September. For calving drama: January–February. For value and atmosphere: November or May. For the least crowds at any phase: April–May or November.

Tanzania vs Kenya for the Migration

Both countries offer the migration — but Tanzania's Serengeti is the origin. The herds spend 9–10 months of the year inside Tanzania. Kenya's Maasai Mara offers crossings from July–October but the herds are smaller (they've split by then) and camp density is higher. Tanzania gives you the full migration story, not just the highlights reel.

Planning Your 2026 Migration Safari

The Serengeti is not a place you visit and expect a crossing on demand. Migration movements are driven by rainfall, which varies year to year. A good guide with active radio intelligence — knowing where other vehicles are seeing action — is worth more than any fixed itinerary. Book a private vehicle, not a shared van, so your guide can reposition in real time.