Dec–Mar
Calving
The southern short-grass plains around Ndutu. Wildebeest give birth to their calves over a few weeks.
Serengeti ecosystem · all year
Where the herds are, what is happening and where we would base you, for every month of the year.
Choose your month
The guide opens on the current month in Tanzania.
JanuaryThis month
The herds spread across the short-grass plains of the south, where the rains have brought fresh, mineral-rich grazing.
FebruaryThis month
Peak calving season. Thousands of wildebeest calves are born every day over a few weeks — and the predators know it.
MarchThis month
Calving tails off and the herds start gathering into larger groups, ready to move as the plains dry.
AprilThis month
Long columns of wildebeest move north-west through the centre of the park during the long rains.
MayThis month
The rut begins. Males compete noisily while the herds pour into the western corridor towards the Grumeti river.
JuneThis month
Herds gather to cross the Grumeti, where very large crocodiles wait. The dry season begins.
JulyThis month
The herds push north and the first Mara river crossings usually begin in the second half of the month.
AugustThis month
Peak crossing season on the Mara. Herds mass on the banks, then plunge across past crocodiles in waves.
SeptemberThis month
Crossings continue back and forth across the Mara as herds follow scattered rain.
OctoberThis month
The herds start drifting south through Lobo and the eastern plains as the north dries out.
NovemberThis month
The short rains pull the herds south through Lobo and Seronera towards the southern plains.
DecemberThis month
The herds arrive back on the southern plains, ready to begin the cycle again.
The herds follow the rain, so positions shift a little every year. We check with our guides in the field before recommending a camp.
The cycle
Dec–Mar
The southern short-grass plains around Ndutu. Wildebeest give birth to their calves over a few weeks.
Apr–May
Long columns move north-west through central Serengeti during the rains. The rut begins.
Jun–Jul
The western corridor and the first river test — the Grumeti and its giant crocodiles.
Jul–Oct
The northern Serengeti and the famous Mara river crossings, before the herds turn south again with the short rains.
Migration safaris
Tarangire → Ngorongoro → Serengeti → Arusha town
Two nights in the Serengeti, the crater and Tarangire — the best value classic.
Arusha town → Tarangire → Lake Manyara → Ngorongoro …
Our most popular trip: every northern park at an easy pace, with a rest night first.
Arusha town → Tarangire → Lake Natron → Serengeti …
The back road to the Serengeti via flamingos, waterfalls and Ol Doinyo Lengai.
Arusha town → Tarangire → Ngorongoro → Serengeti
Four nights in the Serengeti, with camps chosen to be close to the herds in your month.
Arusha town → Serengeti
Fly straight to the Mara river for four days at the crossing points.
Arusha town → Tarangire → Ngorongoro → Serengeti
Hundreds of thousands of newborn wildebeest — and the predators they attract.
Good to know
There is no bad month — only the wrong place. January to March is calving season in the southern Serengeti; June brings the Grumeti crossings in the west; July to October is crossing season on the Mara river in the north.
No. Herds can gather on a riverbank for hours or days before crossing. Staying three or more nights near the river gives you a realistic chance.
Estimates usually put the herd at over a million wildebeest, with several hundred thousand zebra and gazelle.
Both. The herds spend most of the year in Tanzania's Serengeti and cross into Kenya's Masai Mara for part of the dry season, roughly August to October.
We will tell you honestly where the herds are likely to be, and which camps put you closest.