The Great Migration is a year-round movement rather than a single event. More than a dramatic river crossing, it is a continuous search for fresh grass and water across the Serengeti–Mara ecosystem. Rainfall determines the exact pace, so any calendar should be treated as a planning guide rather than a fixed timetable.

January to March: the southern plains

At the start of the year, the herds usually spread across the short-grass plains of the southern Serengeti and the Ndutu region. Calving typically builds from late January into February. The concentration of newborn wildebeest attracts lion, cheetah and hyena, while the open country gives photographers long, clean sightlines.

These months suit travellers who value predator action and young animals more than river crossings. Camps in the south reduce driving time and let you reach the plains early, before the heat and other vehicles build.

April to June: moving north and west

As the long rains change the grass, the herds begin moving through the central and western Serengeti. April and May can bring afternoon showers and softer roads, but also fewer visitors and dramatic skies. By June, columns often form towards the western corridor and the Grumeti River.

The Grumeti crossings are usually smaller and less predictable than the Mara River spectacle. The real reward is seeing the migration on the move: long lines of animals, active predators and a landscape turning from green to gold.

July to October: the Mara River season

From July, parts of the migration may reach the northern Serengeti and Kenya’s Maasai Mara. River crossings can occur on either side of the border and may happen with little warning. A herd can wait for hours, turn away, or cross at a point kilometres from where vehicles have gathered.

For this period, we favour several nights in one well-positioned area instead of chasing rumours across the reserve. Private conservancies around the Mara add quieter game viewing, night drives and walking safaris, while access to the reserve keeps the main crossing zones within reach.

November and December: returning south

Short rains usually draw the herds away from the Mara and back through the eastern Serengeti. The movement becomes more dispersed, and the landscape starts to green. This can be an excellent time for travellers who want resident wildlife, fewer vehicles and a more flexible route.

How to plan well

Choose dates for the experience you want, then choose camps for those dates. Allow at least three nights in a migration area, use a private vehicle where possible and keep expectations realistic. No responsible operator can guarantee a crossing, but good positioning and patient guiding greatly improve the odds of witnessing the migration at its most powerful.