It depends which part of the Migration you want:

• River crossings — August and September, in the northern Serengeti near the Mara River. This is the dramatic moment most people picture.
• Calving — January and February, in the southern Serengeti around Ndutu. Thousands of calves, with predators close behind.

The Migration is roughly 1.3–1.5 million wildebeest, joined by hundreds of thousands of zebras and gazelles, moving in a loose loop through the year. The honest part: they follow fresh grass, not a calendar. The sections below give the operator's month-by-month read, and a straight answer on crossing odds.

How we explain the loop to clients, region by region:

• January–March — Southern Serengeti, the Ndutu region. Calving season, with outstanding predator action.
• April–May — The herds begin the long move northwest. The exact pace depends entirely on rainfall.
• June — The Western Corridor and Grumeti region; some Grumeti River crossings occur.
• July–October — Northern Serengeti. Many herds push toward the Mara River — the period most associated with dramatic crossings.
• November — Rain pulls them back south; the herds spread across the central Serengeti.
• December — Many animals return to the southern plains, and the cycle restarts.

No calendar is guaranteed. Rainfall decides where they move, how fast, and when they cross — so we plan itineraries around recent wildlife reports, not just historical averages.

The realistic crossing window is late July, August, September, sometimes into October, in the northern Serengeti along the Mara River. Smaller crossings can also happen around the Grumeti River earlier, in June.

Here's what we tell every client, straight: nobody can promise a crossing. Even in peak season you might see several, you might wait hours, or you might see none. When a crossing does happen, it often lasts only a few minutes.

The reassuring part is that the surrounding wildlife viewing is exceptional regardless. A good northern Serengeti safari isn't built on one dramatic moment — so if the crossing comes, it's a bonus, not the whole trip.

If crowds and crossing-anxiety put you off, calving is the smarter window for many travellers. In January and February the herds gather on the southern plains around Ndutu, and thousands of calves are born within a few weeks. That concentration of vulnerable young pulls in lions, cheetah and hyena — the predator action can be extraordinary.

You also get green landscapes, softer light for photography, lower prices and far fewer vehicles than the northern crossings in peak season. Plenty of guests who came for "the Migration" leave saying February gave them more than an August crossing would have.

Because the herds move with the rain, the date on your ticket only gets you close. We position itineraries using recent on-the-ground reports, so you're in the right region for the time you travel — north for crossings, south for calving — with the best odds the season allows.

Tell us your dates and what you most want to see, and we'll build it around the herds.

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