The Great Migration is typically in Kenya's Masai Mara from roughly July through September or October, before the herds move back into Tanzania's Serengeti for the rest of the year.
Month-by-Month Movement
January–March: southern Serengeti calving season. April–June: herds move north through the western corridor. July–September: typically in Kenya's Mara, including river crossings. October–December: return journey south.
Where to Watch River Crossings
Camps positioned directly on or near the Mara River, within conservancies allowing flexible game-drive time, offer the best positioning.
How to Plan Around Uncertain Timing
Because exact crossing dates can't be predicted, itineraries typically allow several full days in the Mara to maximize opportunity.
Frequently Asked Questions
What month has the most Mara River crossings?
July through September generally, though timing varies year to year.
Can I see the migration in Kenya outside July–September?
The main herds are typically in Tanzania the rest of the year, though the Mara maintains strong resident wildlife year-round.
Is the migration guaranteed if I visit in August?
No sighting can ever be guaranteed.