Best time to visit Tanzania: a month-by-month guide

For most travellers the best time to visit Tanzania is the long dry season from June to October, when animals gather near water, grass is short and park tracks are firm. January and February are a second strong window, with calving wildebeest on the southern Serengeti plains and mostly dry, hot weather on Zanzibar. The long rains, roughly March to May, are the wettest and quietest months.

Tanzania's seasons at a glance

Tanzania sits just south of the equator, so the calendar is shaped by rain rather than by summer and winter. The pattern most safari planners use has four parts: the long dry season (about June to October), the short rains (usually November into December), a warm, drier spell in January and February, and the long rains from about March to May. Rain usually comes as afternoon storms rather than all-day drizzle, but the long rains can turn black-cotton soil to mud and a few remote camps close for that period.

Altitude matters as much as the month. On the rim of the Ngorongoro Crater and on the upper slopes of Mount Kilimanjaro nights are cold all year, while the coast and Zanzibar stay hot and humid. Pack a warm layer for early game drives in any season.

Month-by-month guide

Regional differences

Northern circuit

The Serengeti, Ngorongoro, Tarangire and Lake Manyara form the classic route from Arusha. Resident wildlife around the central Serengeti is good all year, so there is no truly bad month here; what changes is where the migrating herds are and how easy the tracks are. Tarangire is at its best late in the dry season, when elephants concentrate along the river.

Southern and western parks

Nyerere and Ruaha are drier-season destinations: from about June to October animals cluster along rivers and lakes and the roads are easiest. Heavy rain can make tracks hard going later in the year. In the far west, chimpanzee forests such as Mahale and Gombe can be visited year-round, but June to October brings drier trails.

Zanzibar and the coast

Zanzibar is most comfortable from June to October, when it is drier and a little cooler, and from December to February, when it is hot and mostly dry. The main rains fall from March to May, with a shorter wet spell around November. Showers are often brief, but sea conditions for trips to sandbanks and reefs are calmer outside the long rains. On the northern coast, green turtles nest on Mnemba Island between February and September.

Kilimanjaro

Kilimanjaro can be climbed in any month, but the most popular windows are roughly late June to October and January to early March, when skies are more often clear. Expect heat in the forest zone and temperatures well below freezing on summit night in every season.

The Great Migration through the year

Over a million wildebeest, with zebras and gazelles, move in a loop through the Serengeti ecosystem following the rains. Exact timing changes every year, so treat these windows as typical rather than guaranteed:

• December to March: herds spread across the southern Serengeti and Ndutu area; calving peaks around February.
• April and May: the herds begin moving north and west during the long rains.
• June and July: the Western Corridor and Grumeti River area, with the first river crossings.
• July to October: the northern Serengeti, where the Mara River crossings take place — see our Mara River fly-in safari.
• November: the herds drift back south as the short rains bring fresh grass.

Festivals, holidays and cultural timing

The most important date to check is Ramadan, which moves earlier by around 11 days each year because it follows the lunar calendar. On Zanzibar, and especially in Stone Town, many restaurants close during daylight hours and the streets come alive after sunset; visitors should avoid eating or drinking in public outside hotels and restaurants. It is a rewarding time to visit if you are relaxed about a slower daytime rhythm.

Public holidays and political anniversaries can bring gatherings in towns. The UK Foreign Office notes that demonstrations followed the general election of October 2025 and that further protests are possible, including on public holidays, so check current advice close to departure.

Crowds and prices through the year

July to October and the Christmas and New Year weeks are the busiest periods, with the highest demand for lodges, tented camps and seats on light aircraft. January and February are also popular for the calving season. The long rains are the quietest time, and many lodges price that period lower; in practice, booking in April or May or in early November is the simplest way to stretch a budget. For actual figures, see our guide to what a Tanzania trip costs.

Matching the season to your trip

If you can travel from June to October, a northern-circuit safari followed by a beach stay is hard to beat — our fly-in Serengeti safari with Zanzibar is a good model. For calving in January or February, base yourself in the southern Serengeti. If you are flexible on weather and want quieter parks, look at the shoulder months either side of the long rains. First trip? Read our Tanzania travel guide for first-time visitors and browse the full Tanzania destination page, then plan your own dates and route with a specialist.

Frequently asked questions

Sources

1. Tanzania National Parks (TANAPA) — Serengeti visitor guide
2. GOV.UK (FCDO) — Tanzania travel advice: safety and security
3. GOV.UK (FCDO) — Tanzania travel advice: entry requirements
4. Tanzania National Parks (TANAPA) — Tariffs