Rainfall and grazing
The herds respond to living conditions, so last week's field report is more useful than a fixed calendar graphic.

Great Migration private safaris
Put the traveller in the most useful geography for the month without promising a natural event.
Share your migration datesThe useful answer first
The Great Migration is a moving ecosystem, not an appointment. Dates guide the likely region, but rain, grazing and herd behaviour decide the day. A credible plan uses several nights, strong resident wildlife and camp geography that remains rewarding even when a crossing does not occur.
Decision framework
The windows below describe likely planning emphasis. They never guarantee herd position or a crossing.
| Route or choice | Works best when | Watch carefully |
|---|---|---|
| December to March | Southern Serengeti and Ndutu calving landscapes fit the brief | Assuming every herd occupies one plain at once |
| June to July | Western and northern movement can justify a region-led route | Long distances between likely herd zones and compressed camp changes |
| August to October | Northern Serengeti or the greater Mara offers river geography | Crowding, scarce rooms and any promise of a particular crossing |
What changes the answer
These are the details Sail checks before a route, room or permit line is treated as settled.
The herds respond to living conditions, so last week's field report is more useful than a fixed calendar graphic.
Patient field time creates opportunity. Moving camp repeatedly can consume the very mornings the traveller came to protect.
A mobile camp may follow seasonal logic, while a permanent lodge may add stronger year-round comfort and resident wildlife. Neither wins by label.
Named route examples
A green-season answer centred on calving landscapes and predator activity rather than a river crossing.
A Tanzania-led river window that can work well with patient multi-night positioning.
A Kenya answer when activity rules, privacy and the wider Mara ecosystem fit the traveller better.
Sail's considered positionWe will position a journey intelligently, but we will not sell certainty that the ecosystem does not offer. The route must be worthwhile on every day, including the day the herds choose somewhere else.
Evidence behind the recommendation
These Journal answers show the reasoning behind the route, season and trade-offs. Rules, rates, schedules and natural events can change, so date-sensitive facts are reconfirmed before booking.