The best time to visit Tanzania depends on what you're after: the dry season, from June to October, generally offers the best conditions for a safari and for climbing Kilimanjaro, while Zanzibar stays pleasant nearly year-round, outside the long rains around April. Between the Serengeti, the roof of Africa and the beaches of the Indian Ocean, Tanzania spans several climates worth understanding before building an itinerary.
When is the best time to go on safari in the Serengeti?
Tanzania runs on two main seasons: a dry season from June to October and a rainy season from November to May, itself broken up by a warm calving peak in January-February. During the dry season, vegetation thins out and wildlife concentrates around permanent water sources, which generally makes sightings easier and tracks more passable. It's also the busiest period for a safari in the Serengeti, with generally clear skies and fewer mosquitoes.
The green season, from November to May, has its own appeal: lush scenery, often gentler rates and noticeably quieter parks. January and February in particular mark the wildebeest calving season on the short-grass plains of the southern Serengeti and Ndutu, a striking moment to watch newborn calves and the predators that follow them.
Where can you see the great migration month by month?
The great migration isn't a fixed event: it loops through the Serengeti-Mara ecosystem all year, following the rains and fresh grazing. In practice, the herds can generally be placed as follows:
- January to March: southern plains and Ndutu, calving season.
- April to June: gradual move toward the western Serengeti.
- July to October: northern Serengeti, with Mara River crossings.
- November to December: herds head back east and southeast.
Because of this, a migration-focused safari is always built around your travel dates: an itinerary like our Serengeti to Zanzibar trip can be adjusted to the part of the park that matters most at the time of your visit.
When should you climb Kilimanjaro for the best conditions?
For climbing Kilimanjaro, two windows generally stand out: late June to October, when the air is dry and skies above the moorland are clear, and January to mid-March, a warmer period that also tends to offer good visibility. July and August remain the busiest months on routes such as Machame; September and October often strike a good balance between settled weather and quieter trails.
Conversely, March to May and November are generally considered the wettest months on the mountain, with reduced visibility at altitude: these are not the recommended windows for a summit attempt.
Can you visit Zanzibar all year round?
The Zanzibar archipelago enjoys a warm tropical climate for most of the year, but with two distinct rainy seasons. The "long rains", from March to May with a peak generally around April, bring sometimes long and intense downpours: this is the least favourable period for a beach stay. The "short rains", in November-December, are generally shorter and more irregular, and don't necessarily rule out an enjoyable stay on the north or east coast beaches.
The dry season, from June to October, remains the safest bet for combining relaxation and excursions, especially when extending a Serengeti safari with a few days on the beach.
| Period | Serengeti / safari | Kilimanjaro | Zanzibar |
|---|---|---|---|
| January - February | Wildebeest calving at Ndutu, very good visibility | Warm season, generally clear | Hot and mostly dry |
| March - May | Green season, quiet parks, lush scenery | Wettest months, best avoided | Long rains, peak around April |
| June - October | Dry season, concentrated wildlife, migration up north from July | Best window, dry air and clear skies | Dry season, the most favourable |
| November - December | Herds return east and southeast | Rainy month, reduced visibility | Short rains, lighter and irregular |
Frequently asked questions
Can you combine a safari and Zanzibar in the same trip?
Yes, it's actually one of the most requested combinations: a few days in the Serengeti and the Ngorongoro Crater, then a short flight to Zanzibar to close the trip on Indian Ocean beaches, exactly the shape of our Serengeti to Zanzibar itinerary.
What's the best time to avoid crowds in the Serengeti?
The green season, from March to May or in November-December, generally lets you enjoy quieter parks, with lush scenery and often better rates than during peak dry season.
Are there Tanzanian safaris less crowded than the Serengeti?
Yes: the southern circuit, around Ruaha and Nyerere national parks, remains far more confidential year-round, with very few vehicles per sighting. Take a look at our dedicated southern Tanzania circuit.
Still unsure about the best time for your own trip to Tanzania? Our advisors design every itinerary tailor-made, safari, Kilimanjaro and Zanzibar included: tell us about your plans via our make a request page, and our team generally replies with a personalised proposal within 24 hours.