The Great Migration is one of the most extraordinary wildlife spectacles on Earth. Over 1.5 million wildebeest, accompanied by hundreds of thousands of zebras and gazelles, move in a continuous cycle between Tanzania and Kenya in search of fresh grazing and water.
This dramatic journey unfolds primarily across Serengeti National Park and Maasai Mara National Reserve. Because the migration is a year-round movement rather than a single event, the “best time” depends on what you hope to witness — calving season, river crossings, predator action, or vast moving herds.
Here’s a detailed month-by-month guide to help you plan.
—
January – March: Calving Season (Southern Serengeti)
Location: Southern Serengeti & Ndutu plains
This is calving season, when nearly half a million wildebeest calves are born within a few weeks. The short-grass plains provide nutrient-rich grazing ideal for newborns.
Predator activity is intense during this period, with lions, cheetahs, and hyenas closely following the herds. It’s one of the best times for dramatic wildlife photography and witnessing the circle of life in action.
Best for: Baby animals, predator encounters, fewer crowds than peak season.
—
April – May: The Green Season Movement
Location: Central Serengeti
As the rains continue, the herds begin moving northwest through the central Serengeti. The landscape is lush and green, creating stunning photographic backdrops.
Although this is considered the low season due to heavier rainfall, it offers fewer tourists and lower accommodation rates. Wildlife remains abundant, but road conditions can be muddy.
Best for: Budget travelers, scenic landscapes, quieter safaris.
—
June: Grumeti River Crossings Begin
Location: Western Corridor, Serengeti
By June, the rains ease and the migration pushes toward the Western Corridor. The herds face their first major obstacle — the Grumeti River.
Crossings here are dramatic but less crowded than those later in the season. Crocodiles lie in wait, and predator encounters are common.
Best for: Early river crossing action before peak crowds.
—
July – August: Mara River Crossings (Peak Season)
Location: Northern Serengeti & Maasai Mara
This is the most famous stage of the Great Migration. Massive herds gather at the Mara River, hesitating before making chaotic crossings into Kenya’s Maasai Mara.
The river crossings are unpredictable and breathtaking — wildebeest leap into crocodile-infested waters while predators patrol nearby. It’s the iconic image many travelers associate with the migration.
Best for: Dramatic river crossings, high wildlife density, classic safari scenes.
Note: This is peak season. Advance booking is essential.
—
September – October: Grazing in Maasai Mara
Location: Maasai Mara
After surviving the crossings, the herds spread out across the Maasai Mara’s lush plains. Wildlife viewing remains exceptional, with plenty of predator-prey interaction.
The weather is dry, vegetation is shorter, and animals are easier to spot. Crowds begin to thin slightly compared to July and August.
Best for: Excellent game viewing with slightly fewer visitors.
—
November: The Return South Begins
Location: Northern Serengeti moving south
With the arrival of short rains, the herds begin their journey back into Tanzania. They gradually move through the eastern and central Serengeti.
Although river crossings are less dramatic at this stage, wildlife viewing remains strong and landscapes become green again.
Best for: Fewer tourists, dynamic herd movement.
—
December: Back to Southern Serengeti
Location: Southern Serengeti
By December, the migration cycle returns to the southern plains, preparing once again for calving season.
This is a beautiful time to visit, as the savannah begins to flourish after rains, and large herds gather in open plains.
Best for: Scenic safaris, anticipation of calving season.
—
So, When Is the Absolute Best Time?
There is no single “perfect” month — it depends on your priorities:
For river crossings: July to September
For calving season: January to March
For fewer crowds and better rates: April, May, November
For classic dry-season safaris: June to October
Because the migration follows rainfall patterns, exact timing can shift slightly each year. Working with experienced safari planners ensures you stay in the right location at the right time.
—
Final Thoughts
The Great Migration is not a one-day event but a continuous, awe-inspiring cycle of movement, survival, and renewal across Serengeti and Maasai Mara. Whether you witness newborn calves taking their first steps or thousands of wildebeest plunging into the Mara River, each stage offers something unique.
Understanding the monthly patterns allows you to align your safari with the experience you dream of most — making your African adventure truly unforgettable.
