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Tanzania is three trips in one country, plus a mountain and a remote far west, and they keep different calendars. The northern circuit (Tarangire, Ngorongoro, the Serengeti) runs almost all year because the migration and the resident game give every season a reason to go. The south, Nyerere and Ruaha, is a dry-season destination that largely shuts down in the long rains. The coast and Zanzibar follow the same two rainy seasons as the mainland. So the best time to visit Tanzania depends on which of the three you are combining, and the strongest answer is the month that suits all of them.
This page is the country view. For where to be inside the Serengeti month by month, see the best time to visit the Serengeti; for the herds' full route, the best time to see the great migration.
The detail
The two rainy seasons set the frame. Northern Tanzania has long rains (Masika) from March to May and short rains (Vuli) from about late October to early December. April is usually the wettest month. The short rains tend to come as afternoon storms between bright spells; the long rains are heavier and more persistent, and that is when unsealed roads and remote airstrips suffer.
| Months | North circuit (Tarangire, Ngorongoro, Serengeti) | South (Nyerere, Ruaha) | Coast and Zanzibar |
|---|---|---|---|
| January–February | Dry spell between the rains; calving in the southern Serengeti | Ruaha: mid-wet season. Nyerere: often a drier lull between rains, with some camps open; hot | Hot and mostly dry |
| March–May | Long rains, heaviest in April; green, quiet, some camps close | Rains ease through April; many camps close, road access is hard | Long rains |
| June–October | Dry season; Tarangire at its best late on; crossings in the northern Serengeti | Peak season; game concentrates on the rivers | Dry and settled |
| November–December | Short rains, often afternoon storms; herds moving south | Hot; the rains return and build | Short rains, usually around November |
The north circuit: almost always a reason to go. The Serengeti has its herds somewhere every month, and the region you stay in matters more than the month (that detail is on the Serengeti guide). Tarangire is the one northern park that is clearly seasonal: in the dry months water disappears from most of the ecosystem except the Tarangire River system, and elephants and other herds gather along it. September and October are usually its strongest months, and also its busiest; at the busiest sightings a good guide keeps back and limits time at the river so the herds can drink. Much of the Ngorongoro Crater's wildlife is resident, so it can work in any season; the green months simply bring fewer vehicles.
The south: one long wet season, then a dry-season story. Unlike the north, the south does not have two separate rainy seasons; it has one long wet stretch, roughly from November or December to April, with the heaviest rain around the turn of the year in Ruaha. Nyerere often has a drier lull in January and February, when some camps stay open, though reports vary on how dry it is. Nyerere National Park (much of what used to be called the Selous) and Ruaha are at their best from June to October, when animals draw in to the Rufiji and Great Ruaha rivers and the thinning bush makes them easier to see. By October the Great Ruaha has often shrunk to a chain of pools, and elephants dig in the dry sand of the riverbed for water. Many lodges and camps in both parks shut for some or all of March to May, with dates varying by camp. For a first visit, aim for July to October.
The coast and Zanzibar. The coast is usually dry from about June to October and again from December to February, with the long rains from March to May and short rains around November. The sea is warm all year. Because these dry spells line up with the mainland's, a safari-and-beach trip in July to October or January to February usually finds both ends in good condition. Month-by-month island detail is on the best time to visit Zanzibar, and the logistics of the hop across are on getting from the Serengeti to Zanzibar.
Kilimanjaro and the far west. For climbing Kilimanjaro, the driest months are roughly January to early March and June to October; April and May, in the long rains, are the hardest. The remote western parks, Katavi, Mahale and Gombe, are dry-season destinations, best roughly June to October, when game gathers at Katavi's remaining water and chimpanzee tracking in Mahale and Gombe is easier; flights to the far west are limited in the long rains. More on the country is on our Tanzania page.
A note for late 2026. Tanzania's weather service forecast an above-normal to normal short-rains season, intensifying in November and possibly continuing into January 2027, including Arusha, the Lake Victoria basin and Zanzibar. If you are travelling between November 2026 and January 2027, expect more rain than the table suggests; we plan around the latest forecast when you confirm dates.
What the green season costs and saves. Many camps lower their rates outside the dry season, and the north has far fewer vehicles in April and May. The trade-offs are real: some roads and camps close, game in the long grass is harder to find, and the south is largely off the table. How season feeds into the price is explained in what a safari costs.
Key facts
Best all-round months: June–October (north, south and coast all dry). Second window: January–February (north and coast; calving in the southern Serengeti). Long rains: March–May, heaviest in April. Short rains: about late October–early December, heaviest in November. South (Nyerere, Ruaha): best June–October; many camps close for some or all of March–May. Tarangire: strongest late in the dry season, usually September–October. Ngorongoro Crater: can work year-round, as much of its wildlife is resident. Kilimanjaro: driest roughly January–early March and June–October. Western parks (Katavi, Mahale, Gombe): best roughly June–October. Coast: dry about June–October and December–February. Late 2026: heavier-than-usual short rains forecast, possibly into January 2027.
Planning it with Nobu
A travel designer works from the map, not the calendar: start with which parts of the country you want, find the months when all of them are in season, then place each night where the season is strongest. That is how a July trip can pair Ruaha with the northern Serengeti, or a February trip can pair calving with the beach.
Is it right for you?
June to October is right for you if you want the widest choice: the south and the north on one trip, river crossings in the northern Serengeti, Tarangire's elephants, and a dry coast to finish. Less ideal if you dislike company at sightings or want the lowest rates; this is the busiest period.
January to February is right for you if you want calving and a beach in the same fortnight, and you accept that Ruaha is in its wet season and only some Nyerere camps are open.
March to May is right for you if you want the north with few other vehicles, accept rain and some closed camps, and have no plans for Nyerere or Ruaha. Choose another season if this is your only safari.
Kenya may suit you better if you have a week or less and want shorter transfers: see Kenya vs Tanzania and the best time to visit Kenya.
Journeys to consider
- Tanzania, one chapter at a time. — eight days through Tarangire, Ngorongoro and the Serengeti, which suits the June–October and January–February windows on this page. Tanzania, one chapter at a time
- Zanzibar, with nothing to rush. — seven days of Stone Town and a coastal base, a natural second half after a northern safari in the coast's dry months. Zanzibar, with nothing to rush
