The Great Migration is a year-round movement of roughly two million wildebeest and zebra circling the Mara–Serengeti ecosystem in search of grazing and water. Timing your trip around it is the single biggest factor in how your safari unfolds.

Where the herds are, month by month

The migration follows a broadly predictable clockwise loop, though rainfall can shift the exact timing by a few weeks either way.

Month

Migration location

Highlight

Dec–Mar

Southern Serengeti / Ndutu

Calving season, dense predator action

Apr–May

Central Serengeti

Green season, herds on the move north

Jun–Jul

Western corridor

Grumeti River crossings begin

Jul–Oct

Maasai Mara / Northern Serengeti

Mara River crossings, peak season

Nov

Southern Serengeti

Short rains, herds head south again

Our recommendation

For first-time visitors chasing the classic river-crossing photograph, July to October in the Maasai Mara is hard to beat. For a quieter, calving-season alternative with newborn wildebeest and dramatic predator sightings, consider February in the southern Serengeti.

Wildebeest and zebra crossing the Mara River
A river crossing in the Maasai Mara, July 2025.

There is no single 'best month' — there's a best month for what you want to see. Tell us your priorities and we'll route the trip around them.