Serengeti in December: Herds Build Before Calving Season

December in the Serengeti sits at an unusual point in the wildlife calendar — the transition from the short rains to the pre-calving build-up. The herds that spent September and October crossing south from the Mara River are now congregating on the short-grass plains of the southern Serengeti and Ndutu in preparation for the January calving season. It is an excellent time to visit, with one significant caveat: prices are at their annual peak due to the Christmas and New Year holiday period.

Understanding what December offers versus what you are paying for it is the key to deciding whether this is the right month for your safari.

What the Migration is Doing in December

By December, the million-plus wildebeest have completed their annual northern circuit — calving in the south in January, moving north through the spring, crossing the Mara River through July to October, and now returning south. In December, large herds are gathering on the short-grass plains south of the Seronera Valley and in the Ndutu area at the border of the Ngorongoro Conservation Area.

This pre-calving concentration is less dramatic than the calving itself — which begins in January — but it provides outstanding opportunities to observe very large wildebeest herds on open plains. The groups visible in December can number in the tens of thousands. Predators, particularly lions, begin moving toward the southern plains in anticipation of the calving that is weeks away.

December provides a preview of the January calving spectacle. The herds are gathering. The predators are following. The stage is being set. Travellers who visit in December and return in January describe them as two complementary chapters of the same story.

Weather in December

The short rains, which begin in November, typically ease through December. Early December may still see occasional afternoon showers. By mid-December in most years, the rains have stopped and the conditions are transitioning toward the dry, clear weather that characterises January and February. The landscape is green and lush from the November rains, with good grass growth on the southern plains that the wildebeest are exploiting.

The combination of green landscapes — not yet brown and dusty as they will be by July — and good wildlife activity makes December a visually beautiful month for photography. The southern Serengeti in December light, with green plains and large wildebeest herds, produces images that are different from any other time of year.

Wildlife in December

Wildlife in December is outstanding by any standard. Beyond the wildebeest herds gathering on the southern plains, the full resident wildlife of the Serengeti is active and accessible. Lions are moving south following the herds and are frequently encountered in family groups on the open plains. Cheetahs, which thrive on the short-grass plains of the south where their speed advantage is maximised, are commonly sighted in December in the same areas the wildebeest are occupying.

Ngorongoro Crater, which is part of most December itineraries, is also excellent in December. The crater's permanent wildlife — black rhino, large elephant families, resident lion prides — is unaffected by season. November's short rains bring flamingos to Lake Magadi in impressive numbers, and in December the crater floor is lush and the flamingo count often remains high.

December is also excellent for birdlife. Intra-African migrants that arrived with the November rains are still present. The combination of short-rains vegetation and good bird activity makes December one of the better months for birding in the Serengeti ecosystem.

Crowds and Prices in December

December is one of the most expensive months to safari in Tanzania. The Christmas and New Year period — roughly 20 December to 5 January — sees prices at annual peaks comparable to August. International school holidays, Christmas breaks, and the general travel surge toward year-end combine to create high demand for accommodation and vehicle availability. The best camps book out for the festive period 6–12 months in advance.

Outside the festive peak — early and mid-December — prices are moderate and availability is better. The wildlife in early December is as good as the festive period without the holiday premium. If you have flexibility to avoid the Christmas–New Year window, early December offers the same Serengeti conditions at noticeably lower rates.

Crowds at sightings in December are more variable than the consistent peak of August. At the southern plains wildebeest concentrations, vehicle numbers are moderate. The Seronera Valley remains busier year-round than the peripheral areas. The northern Serengeti is quiet in December — the crossing season is over and the camps are at green season rates even as southern Serengeti prices spike for the festive period.

December vs January: Which is Better?

Travellers with the option of either December or January frequently ask which is better. The honest answer: January is better for wildlife, December is sometimes the only option due to school holidays and work schedules.

January's calving season — 8,000 calves per day at peak, predators hunting in full daylight on open plains — is more dramatic than December's pre-calving build-up. But the December herds gathering at Ndutu, with the anticipation of what is coming, is a different kind of experience that many travellers find deeply compelling. It is the quiet before the extraordinary event.

If you are booking December because of the holidays, do it as early as possible. The best camps for southern Serengeti positioning in December fill quickly. Kassim can advise which specific camps provide the best access to the Ndutu calving areas for late December bookings — this positioning matters enormously for what you see.

WhatsApp Kassim with your December dates and group size. He will tell you what is available, what the all-inclusive price covers, and how to position your itinerary for maximum wildlife impact during your specific window.