When Is the Best Time to See the Great Migration in the Serengeti?

best-time-to-see-great-migration serengeti

The Great Migration is one of the biggest wildlife sights there is. Here's where the wildebeest herds are through the year, and how to plan your Kilisa Tours safari around them.

Picture more than 1.5 million wildebeest, along with hundreds of thousands of zebra and gazelle, moving in a huge loop across the Serengeti ecosystem, as they have for a very long time. No documentary or photo quite prepares you for the size and energy of the Great Wildebeest Migration. Many people call it the greatest wildlife show on Earth, and Tanzania is right in the middle of it.

The good news is that the Migration never stops. The herds are always on the move, always somewhere in the Serengeti or across the border in Kenya's Maasai Mara. The catch is that some parts of the yearly cycle are more dramatic, with bigger herds packed closer together, than others. Knowing where the herds are, and when, can turn a good safari into one you'll talk about for years.

At Kilisa Tours and Safari, we follow the herds closely and plan our safari routes around where they are each season. This guide is our honest, month-by-month look at the Migration, so you can plan your trip with confidence.

Understanding the Great Migration: A Circle, Not a Single Event

A lot of people think the Great Migration is one event that happens at one time in one place. In fact it's a journey that goes on all year, in a circle, driven by rain and grass. The wildebeest follow the rains, and with them the fresh grass, in a clockwise loop of roughly 1,800 kilometers a year.

The loop looks roughly like this:

Southern Serengeti / Ndutu area — December through March (calving season)
Central Serengeti — April through May (long rains, herds gather together)
Western Corridor — May through July (Grumeti River crossings)
Northern Serengeti — July through October (Mara River crossings)
Return south — November through December

Every stage has something special. The real question is which part appeals to you most, and which fits your travel dates. Let's go through the cycle step by step.

Month-by-Month Great Migration Guide

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January – March: Calving Season in the Southern Serengeti

This is one of the most underrated and moving times of the whole Migration. From January through March, the herds gather on the short-grass plains of the southern Serengeti, especially around Ndutu near the edge of the Ngorongoro Conservation Area. The rich volcanic soil here grows the most nutritious grass in the ecosystem.

This is where the calves are born. At the peak, around 8,000 wildebeest calves are born every day, roughly half a million over six to eight weeks. The plains become a giant nursery. And where there are so many newborns, there are predators. Lions, cheetahs, hyenas and leopards all make the most of it. The chases and hunts during calving season are some of the most intense wildlife viewing you can find in Africa.

January and February are mostly dry, with clear skies and warm days, which is great for photos. The long rains start in March, but the herds stay in the south.

Our safaris for calving season:

April – May: Long Rains and the Herds Gathering

When the long rains arrive in April and get heavier in May, the herds start moving north and west through the central Serengeti. The land turns bright green, and the long lines of wildebeest stretching to the horizon are a sight on their own, even if there's less predator action than in calving season.

April and May are low season. Camps are quieter, prices are lower, and the Serengeti looks lovely in the rain. If you're a keen wildlife photographer or you'd rather avoid crowds, this is a good time to go. Some roads can be difficult and some seasonal camps close, so plan this period with an experienced operator like Kilisa Tours.

June – July: The Western Corridor and the Grumeti River

By June the rains ease off and the herds push northwest through the Western Corridor of the Serengeti toward the Grumeti River. The Grumeti crossing is less famous than the Mara River crossing further north, but it's impressive in its own way. The Grumeti has some very large Nile crocodiles, and many have spent months in the river waiting for exactly this moment.

By July the dry season has set in. The grass is shorter, animals are easier to spot and the temperatures are pleasant. June and July are also the start of peak safari season, so expect more visitors and book well ahead.

July – October: The Mara River Crossings

If there's one part of the Migration that has caught the world's attention, it's the Mara River crossing in the northern Serengeti. From July through October, usually peaking in August and September, the herds crowd onto the southern bank of the Mara River, building up the nerve to cross.

What happens next is wild and chaotic. Hundreds or thousands of wildebeest jump into the crocodile-filled river in a churning, thundering mass. Some make it across. Some don't. It's raw and intense, and you won't forget it. Waiting for a crossing takes patience. Sometimes the herds mill around for hours before one brave animal sets off the rush. When it happens, the wait feels well worth it.

In October the short rains arrive and the herds start heading south again, but crossings can still happen well into the month.

Our safaris for the Mara River crossings:

November – December: The Return South

When the short rains come in November, the herds head back south through the eastern Serengeti. These rains are usually lighter and more regular than the long rains. They often fall in the afternoon and leave the mornings clear and fresh. The Serengeti is quieter, prices drop from peak-season levels, and the land starts turning green again.

December is a lovely month on the plains. The grass is thick, young animals of many species are about, and the holiday mood at the camps makes it feel extra warm. By late December the herds are back in the southern Serengeti and Ndutu plains, closing the circle and getting ready for calving season again.

Quick Reference: Great Migration Calendar

Month	Herd Location	Migration Highlight	Crowds
January	Southern Serengeti / Ndutu	Calving season begins — predator action	Moderate
February	Southern Serengeti / Ndutu	Peak calving — 8,000 births per day	Moderate
March	Southern / Central Serengeti	Herds begin moving north	Low
April	Central Serengeti	Lush scenery, herds consolidating	Very low
May	Central / Western Serengeti	Long columns moving northwest	Very low
June	Western Corridor	Grumeti River crossings begin	Moderate
July	Western Corridor / Northern Serengeti	First Mara River crossings	High
August	Northern Serengeti	Peak Mara River crossings	Very high
September	Northern Serengeti	Crossings continue — superb viewing	Very high
October	Northern Serengeti / Moving south	Late crossings, herds turning south	High
November	Eastern Serengeti	Short rains, return journey south	Low
December	Southern Serengeti / Ndutu	Herds returning, landscape greening	Moderate

Calving Season or Mara River Crossings: Which Should You Choose?

This is the question we hear most from guests planning a Migration safari. Both are amazing, and the right answer depends on what kind of wildlife experience you're after.

Choose Calving Season (January – February) if you want:

Lots of predator action, with lion, cheetah, hyena and leopard all hunting
The emotion of seeing birth and survival on a huge scale
Slightly fewer crowds and lower prices than peak season
Clear skies and great light for photos
A quieter, less-visited side of the Serengeti

Choose Mara River Crossings (July – October) if you want:

The famous, dramatic crossing scenes you've seen in documentaries
The sight of thousands of animals moving at once
Crocodile action at the river banks
Peak dry-season conditions with good game viewing across the whole park
The full peak-season safari, with camps busy with other travelers

Honestly? If you can only pick one, go with whichever fits your travel dates. Both are among the best wildlife experiences you can have. And if you'd like to see both, we can help you plan a tailor-made safari across more than one season.

The Serengeti Beyond the Migration

tarangire national park safari

Keep in mind that Serengeti National Park is a great place for wildlife in every month of the year, not just during the Migration. It has one of the highest numbers of large predators in Africa, herds of elephant, giraffe and buffalo that live there all year, many kinds of antelope, and one of the largest lion populations anywhere.

The Ngorongoro Crater, Tanzania's other big wildlife area, is good all year and fits naturally with any Serengeti safari. The crater floor is a self-contained world with around 30,000 animals, including lots of lions and the critically endangered black rhino.

Add a visit to Tarangire National Park in the dry season (June to October), when big herds of elephants gather at the Tarangire River, and you have a northern Tanzania circuit with great wildlife at every stop.

Our Safari Packages Built Around the Great Migration

We've put together a full range of safari itineraries to get you to the right place at the right time. Whether you want the calving season, the river crossings or the whole northern circuit, we have a package that fits.

Migration Safari Packages

Budget Camping Safari Options

Mid-Range Safari Options

Luxury Safari Options

Not sure which package suits your dates? Have a look at our full list of tours and safaris or browse all our Tanzania destinations for ideas.

Practical Tips for a Great Migration Safari

Book Early for Peak Season

July through October is the busiest safari time in Tanzania, and the best camps fill up many months ahead. If you want to see the Mara River crossings, we suggest getting in touch at least six months before, and earlier if you can. Check our group departure dates for upcoming scheduled trips, or let us plan a private itinerary for you.

Be Patient at the River

The crossings happen when the wildebeest decide, not when we do. Our experienced guides read how the herds are behaving and know where to park the vehicle for the best view, but patience is part of it. Some guests wait two or three game drives before they see a crossing. When it finally happens, you'll forget all about the waiting.

Combine the Migration with Other Parks

Northern Tanzania has much more to offer than the Serengeti alone. Adding a day or two at Ngorongoro Crater, Tarangire National Park or Lake Manyara rounds out your safari nicely and shows you a wider range of Tanzania's wildlife and landscapes.

Know What to Bring

Bring binoculars, neutral-colored clothes, a good camera with a long lens, sunscreen and a warm layer for early morning drives. Our complete safari packing list and what to take guide cover everything you need. Have a look at our notes on safari food and our safari vehicles too, so you know what to expect.

Get Your Health Prep Right

Visit a travel health clinic before you leave and read our immunization and medical kit guide. Good travel insurance is also essential. Make sure your policy covers medical evacuation.

Why Plan Your Great Migration Safari With Kilisa Tours?

We are a safari company based in Tanzania. That means we're here on the ground, keeping an eye on conditions as they change and adjusting routes to where the herds really are, not where a brochure printed six months ago says they should be. Together our guides have decades of experience reading the Migration and getting guests into position for the best sightings.

We also really care about getting it right for you. Whether it's your first safari or you've been to Africa many times, we take the time to understand what you want and plan an itinerary that gives you that.

The Migration is happening right now, somewhere in the Serengeti ecosystem. The only question is when you'll be there to see it.

Talk to our team today and start planning your Great Migration safari.