When is the Great Migration in Tanzania? (Complete 2025–2026 Safari Guide)

Introduction: Witness Nature’s Greatest Show – The Great Migration in Tanzania

The Great Migration in Tanzania stands as one of the most awe-inspiring wildlife spectacles on Earth. Every year, over two million wildebeest, zebras, and antelopes embark on an epic journey across the Serengeti plains, moving toward Kenya’s Masai Mara in search of greener pastures. This breathtaking migration is driven by the seasonal rains and is filled with drama, excitement, and the raw power of nature.

For adventurous travelers, planning a Tanzania safari to witness the Great Migration is a dream come true. However, timing is crucial. Understanding when and where the migration moves throughout the year can make the difference between seeing a handful of animals and witnessing river crossings teeming with life and death encounters. In this guide, we’ll break down everything you need to know about the timing of the Great Migration in Tanzania, where to be, and what to expect month-by-month.

Ready to explore the world’s greatest wildlife phenomenon? Let’s dive in!

What is the Great Migration?

The Great Migration is the largest overland animal migration on the planet. It’s a relentless, circular journey where nearly two million animals — predominantly wildebeest, zebras, Thomson’s gazelles, and eland — move across the Serengeti ecosystem, chasing the rains and the promise of fresh grazing lands.

Beginning in the southern Serengeti, the herds travel clockwise through the park, reaching the northern Serengeti and crossing into Kenya’s Masai Mara before looping back south. Along the way, the migrating animals face numerous obstacles, from river crossings teeming with hungry crocodiles to open plains stalked by predators like lions, cheetahs, and hyenas.

One of the most iconic moments of the Great Migration is the Mara River crossing, where the perils of the journey become dramatically evident. Hundreds of wildebeest may perish during this dangerous passage, while predators capitalize on the chaos. Yet, the sheer resilience and instinct of the herds drive the migration forward, making it one of the most moving and unforgettable spectacles on Earth.

(Need a quick refresher? Read more about the wildlife in Serengeti you’ll encounter.)

When is the Great Migration in Tanzania? (Month-by-Month Breakdown)

The Great Migration in Tanzania is not confined to a single event or location. Instead, it’s a year-round cycle shaped by seasonal rains, with different regions of the Serengeti offering distinct experiences at different times of the year.

January to March: Calving Season – Southern Serengeti and Ndutu Region

• The herds settle in the southern Serengeti and Ngorongoro Conservation Area for the calving season.
• Thousands of wildebeest calves are born each day, offering a dramatic display of new life and predator-prey interactions.
• Predators like lions, cheetahs, and hyenas stalk the vulnerable newborns, creating exhilarating wildlife encounters.
• Expect green landscapes, abundant wildlife, and incredible photographic opportunities.

Tip: This is an excellent time for photographers and those interested in witnessing intimate wildlife moments.

April to May: The Long Rains – Central Serengeti and Moru Kopjes

• The herds gradually move northward into the central Serengeti.
• This is the long rainy season, resulting in fewer tourists and lush, vibrant scenery.
• Predator sightings remain excellent, but river crossings have not yet begun.
• Safari experiences are often quieter, more intimate, and budget-friendly during this period.

Tip: Bring waterproof gear and embrace the green season for its beauty and discounted travel rates.

June to July: Grumeti River Crossings – Western Corridor

• The herds reach the western Serengeti and confront their first significant river obstacle — the Grumeti River.
• Crocodile-infested waters and treacherous riverbanks test the animals’ resolve.
• While crossings are smaller than at the Mara River, they are no less thrilling to witness.

Tip: Book accommodations early if you want to stay near the Grumeti area during this peak safari period.

August to October: Mara River Crossings – Northern Serengeti

• The climax of the migration unfolds as massive herds cross the Mara River.
• This is the bucket-list moment for many travelers — chaotic river crossings, hungry crocodiles, and desperate leaps for survival.
• Even after the crossings, the herds linger in the northern Serengeti and the Masai Mara.

Tip: August and September are the prime months, but early October can still deliver excellent viewing opportunities.

November to December: Return to the South – Short Rains

• With the onset of the short rains, the herds move southward back to the Serengeti.
• The landscape turns green once again, and the cycle of life continues.
• Herds spread out more during this time, but game viewing remains excellent.

Tip: This is a great period for travelers who prefer lush landscapes and fewer crowds.

When is the Best Time to See the Great Migration in Tanzania?

Your ideal timing depends on what kind of safari experience you want:

Calving Season (January to March)

• Witness the wonder of newborn wildebeest and dramatic predator action.
• Best for photographers, wildlife enthusiasts, and travelers wanting a lush green setting.

River Crossings (June to October)

• Grumeti River crossings (June–July) and Mara River crossings (August–September) offer the most dramatic moments.
• Perfect for adventure seekers wanting heart-stopping action and iconic wildlife encounters.

Green Seasons (April–May and November–December)

• Enjoy lush landscapes, excellent game viewing, lower rates, and fewer crowds.
• Ideal for those seeking a serene safari at a more relaxed pace.

Want even more guidance? Check out our comprehensive guide to the Best Time to Visit Serengeti, complete with safari tips and budget options!

Plan Your Unforgettable Great Migration Safari to Tanzania

A Great Migration safari in Tanzania is a once-in-a-lifetime adventure, offering front-row seats to nature’s most incredible show. Whether you dream of watching thousands of wildebeest thundering across the plains, seeing a crocodile-charged river crossing, or experiencing the miracle of birth on the Serengeti, the migration has something unforgettable for every traveler.

Ready to embark on your journey?
Explore our Tanzania Safari Travel Guide for expert advice, browse our Safari Tours, or talk to one of our friendly Africa Travel Experts to start crafting your dream safari today!