The best time to visit Tanzania is June–October (long dry season) for peak game viewing, Mara River crossings, and clear skies. January–February is excellent for wildebeest calving in the Ndutu plains and has fewer crowds than peak season. Avoid April–May (heavy rains). When to go to Tanzania ultimately depends on your key wildlife priority: Great Migration river crossings (July–October), calving season (January–March), or beach time in Zanzibar (June–October or January–February).

The best time to visit Tanzania for a wildlife safari is June through October, Tanzania’s long dry season, when the grass is short, water sources concentrate animals, and the sky stays clear for weeks at a stretch. January and February are also a particularly strong option, with the Serengeti wildebeest calving season and excellent predator activity in the Ndutu area. That said, when to go to Tanzania depends significantly on which park you want to visit, which wildlife event matters most to you, and what budget you’re working with.

The weather in Tanzania is the most important thing to consider when planning your safari there. Tanzania is challenging to apply the universal rule of weather changes to because of the large geographical diversity of the country, but there are basic weather patterns that give a general idea of what you can expect at any given time of year. Tanzania has got two rainy seasons: the long one that usually occurs between March and May and a shorter one that takes place in November and December.

The best time to go on a safari in Tanzania is during one of the most pleasant times of year, which is the long dry season (June to October) when the weather is generally clear and sunny. However, Temperatures in Tanzania vary greatly depending on elevation, and the weather usually remains warm even in winter in the coastal areas. The best time to go on safari in Tanzania will also depend on what you intend to see in the country. Different attractions have different months of the year that are more favorable for a safari in Tanzania than for others.

Tanzania Seasons at a Glance

June to October: Why This Is Tanzania’s Peak Safari Season

Tanzania’s long dry season runs from June through October. These five months deliver conditions that make wildlife viewing easier and more predictable than any other time of year. The reasons are straightforward. Grasses and shrubs dry out, shrink, and thin, removing the visual barriers that make animals difficult to spot in the green season. Waterholes and rivers contract, forcing elephants, zebras, wildebeests, and big cats to congregate within smaller territories. Your game drives cover less ground, but you see more animals.

June: The Rains End and the Season Opens

June marks the end of the long rains across most of northern Tanzania. The Serengeti National Park landscape shifts from lush and dense to progressively open. The wildebeest herds, which spent January through May in the southern Serengeti and Ndutu plains, begin the long north-west push toward the Grumeti River and eventually the Mara. In June, the migration crosses the Grumeti, less famous than the Mara crossing but equally dramatic, with large Nile crocodiles resident in the river.

Temperatures in June drop to the most comfortable of the year: highs of 26–28°C during the day and cool nights that can reach 12°C at altitude in the Ngorongoro highlands. Bring a fleece layer. Hotels open their peak-season inventory in July rather than June, so June offers good availability at rates that haven’t yet hit their highest point.

July–August: Peak Season, Mara River Crossings and Maximum Wildlife

July and August are the most popular months in Tanzania for a reason. The wildebeest migration, more than 1.5 million animals plus hundreds of thousands of zebras and gazelles, reaches the northern Serengeti and begins crossing the Mara River in pursuit of Kenya’s greener Maasai Mara. The crossings at Mara Crossing Point (near Lamai Wedge and Kogatende) happen multiple times per week in peak season.

These crossings are the most visually dramatic event in African wildlife. The column moves to the riverbank, pauses, then a few animals commit, and suddenly thousands are in the water simultaneously, Nile crocodiles exploding from below and lions waiting on the far bank. Individual crossings last between 10 minutes and two hours. Your guide reads the herd’s behavior and positions the vehicle to give you the widest view.

While the migration draws most attention, the rest of Tanzania is equally impressive in July–August. In Tarangire National Park, elephants congregate in extraordinary numbers around the Tarangire River; some days over a thousand animals are visible from a single point. The Ngorongoro Crater keeps its perennial water sources and concentrates lions, hyenas, black rhinos, and large herds of buffalo year-round, with dry-season visibility at its best.

The trade-off: July–August is the busiest period on the road. Multiple vehicles cluster around crossings and lion sightings in peak areas. Book lodges 8–12 months in advance for July and August.

September–October: Late Dry Season, Crowds Thin, Game Stays Strong

By September the migration has moved into Kenya’s Maasai Mara, and some herds are beginning the return south. But the game viewing in the central Serengeti and in Ruaha National Park remains exceptional. The northern circuit is noticeably less crowded than August. In October, small herds of wildebeest begin crossing back into the northern Serengeti from the Mara, reverse crossings that most visitors don’t know about and that are rarely accompanied by large gatherings of safari vehicles.

October is also peak season for chimpanzee trekking in Mahale Mountains National Park on the shores of Lake Tanganyika, before the short rains arrive in November. And in Nyerere National Park (formerly Selous Game Reserve), the dry season lasts until December, meaning October remains excellent for boat safaris on the Rufiji River and walking safaris in the open miombo woodland.

For travellers who want dry-season game viewing without peak-season crowds and prices, September and October are among the most underrated months to visit Tanzania.

January and February: The Calving Season, Tanzania’s Best-Kept Secret.

January and February are the second-best times to visit Tanzania for wildlife, and for some activities they are better than peak season. The wildebeest calving season in the southern Serengeti and Ndutu Conservation Area begins in late January and runs through early March. Around 500,000 calves are born in a six-week window, overwhelming predators through sheer numbers.

The Ndutu plains in January and February host extraordinary predator concentrations. Cheetah mothers hunt openly across the flat grassland. lion prides target stragglers; wild dogs, if they have a pack in the area, move fast and efficiently. Because the calving herds stay in the south, the Ndutu area becomes crowded, but the central and western Serengeti remain quiet, and game drives there feel genuinely private.

Wildebeest Migration Calving Season

January and February also have lower rainfall than October and November. The landscape is green and photogenic rather than the parched yellow of September. Birdwatching is at its richest because migratory species from the Northern Hemisphere are present alongside resident Tanzanian species. January typically offers the highest bird species count of the year.

For climbing Mount Kilimanjaro, January and February offer some of the clearest summit windows of the year: cold and bright above the cloud band, with morning views to the Amboseli plains on the Kenyan side.

November and December: Short Rains, Good Value, Good Wildlife

The short rains arrive in November, typically as afternoon thunderstorms rather than all-day downpours. This is Tanzania’s shoulder season, and it offers a genuinely rewarding experience at meaningfully lower rates than peak season. The wildebeest herds move south from Kenya through the northern Serengeti in November and December, completing their circular migration back toward the Ndutu calving grounds.

November is the quietest month on the northern circuit; you can have prime Serengeti game-drive routes largely to yourself. By December, the short rains begin to ease, the landscape greens up, and festive-season visitors start arriving. Christmas and New Year weeks in Zanzibar and the Serengeti lodges require advance booking 6–9 months ahead.

The Zanzibar beach experience in December is mixed: the first half of the month can bring rain; the second half generally clears. Stone Town and the north coast (Nungwi, Kendwa) are excellent in December during clear spells and carry a festive atmosphere.

March to May: Low Season, Who Should (and Shouldn’t) Visit

March through May is Tanzania’s long rainy season, with April and May being the wettest months. Roads in parts of the northern circuit become difficult or impassable, some tented camps close entirely, and the long grass makes visual game spotting harder than at other times of year.

That said, the low season has genuine merits for the right traveler:

• Rates at open camps and lodges are 30–40% lower than peak season
• The parks are near-empty; you can have a full day in the Serengeti without seeing another vehicle
• The landscape is photogenically lush and green
• Birdwatching is exceptional, with migratory species at maximum density
• The Ngorongoro Crater floor stays accessible and holds resident wildlife year-round

Who should avoid April–May: anyone primarily focused on the Great Migration or maximum game visibility. The Nyerere National Park (Selous) and Ruaha National Park in the south typically have lighter rains than the north and can be a better low-season alternative.

March is the transition month: the herds are still in the southern Serengeti moving toward the Grumeti, rain is building but not yet heavy, and rates are starting to drop. March is a viable option for budget-conscious travelers who can handle some afternoon rain and do not require the Mara crossing.

Tanzania Month-by-Month Safari Guide

Tanzania is located in East Africa and is home to one of the continent’s seven wonders: the great migration of wildlife in Serengeti National Park. Tanzania is home to the great Serengeti National Park, Africa’s highest mountain, Kilimanjaro National Park; the world’s largest crater, the Ngorongoro crater; and many other opportunities to spot Africa’s Big 5 game, like elephants, lions, leopards, buffalo, and Rhinos.

Many visitors who want to visit Tanzania often ask the same question: “When is the best time to visit Tanzania?” Based on our expertise and over 15 years of experience, the best time to visit Tanzania depends on the wildlife you want to see. Visibility and movement of wildlife in Tanzania are all dictated by the weather; most especially, the rains dictate much of it.

If your aim for a safari in Tanzania is to see the Great Migration, This occurs year-round across the Serengeti, but many people flock around here between July and September for the best chance to witness huge herds of wildebeest and zebra crossing the great Mara River, trying to avoid the jaws of the deadly Mara crocodiles and other predators like lions, leopards, and cheetahs waiting for their meal. At this time of year, you’ll see lots of safari vehicles in the park following the migration. This same time of the year is Tanzania’s long dry season with the best wildlife viewing opportunities since the vegetation in these months is short and is not as dense as in the rain, which allows amazing game viewing.

Tanzania’s ever-green season, between November and March, is much quieter. While there’s a chance of rain showers, it’s a fantastic time for birdwatching as migratory species arrive in their thousands. You’ll also experience the calving of the wildebeest herds and their newly born calves.

The only time we tend to avoid Tanzania is between April and May when heavy rains can disrupt wildlife viewing, and also parks like Serengeti and the Ngorongoro crater are inaccessible.

Serengeti National Park

The Serengeti National Park has excellent game year-round, but two periods are particularly notable. July–October for the northern Serengeti Mara River crossings, and January–March for the southern Serengeti calving season in the Ndutu and Kusini areas. The least productive months are April and May when heavy rains can limit access to secondary roads. The central Seronera Valley with its resident lion prides and reliable leopard sightings is worth visiting any month except the peak rains.

For a hot air balloon safari over the Serengeti, any dry-season month works technically, but the best balloon photographs are taken in the golden light of June and July before the vegetation has fully browned.

Ngorongoro Conservation Area

The Ngorongoro Conservation Area and its 260 km² crater floor hold resident wildlife year-round: elephants, lions, spotted hyenas, and one of the most stable black rhino populations in East Africa. The best game viewing is June–October, when the crater walls funnel cool air and visibility across the floor is maximal. Importantly, unlike the Serengeti, the Ngorongoro crater is worth visiting even in April–May because the wildlife doesn’t leave and the roads to access the crater floor are generally maintained regardless of the outer seasonal rains.

Tarangire National Park

Tarangire’s prime season is July–October, when the Tarangire River becomes the only permanent water source for hundreds of kilometers. Elephants come in herds of 50 to 300 around the riverbank baobab groves during August and September, possibly the highest elephant concentration anywhere in Tanzania’s northern circuit. The Tarangire National Park is also the best Tanzanian park for birding enthusiasts year-round, and in the green season (November–May) the acacia woodland is genuinely beautiful.

Lake Manyara National Park

The alkaline Lake Manyara and its surrounding acacia forest are best visited in June–October for the tree-climbing lions that the park is famous for (though lion sightings are never guaranteed). The lake itself varies dramatically with rainfall in a wet year it teems with flamingos and waterfowl; in a dry year it may be reduced to mudflats. Lake Manyara National Park is most commonly visited as a day stop en route from Arusha to the Ngorongoro crater and Serengeti and works well any time of year for its compact and rich birdlife.

Mount Kilimanjaro

The two best windows for climbing Mount Kilimanjaro are January–March and June–October. Both periods are relatively dry on the southern slopes used by the Machame and Marangu routes. January and February see excellent clarity at the summit and light snow on the crater rim. July and August are the busiest climbing months, with high success rates but more climbers on the path. September and October offer strong conditions with fewer people.

Kilimanjaro Summit

Avoid April–May (heavy rain and snow on the upper mountain) and November (the onset of short rains brings unpredictable summit conditions). See our full Kilimanjaro trekking guide for route-by-route seasonal advice.

Zanzibar Beach

The Zanzibar beach experience is best from June–October (long dry season) and January–February (short dry season). The Indian Ocean is calmest and clearest in these months, and visibility for snorkeling and diving at Mnemba Atoll reaches 25+ metres in August and September. The long rains (April–May) bring persistent heavy showers that interrupt beach days. Zanzibar’s north coast beaches (Nungwi and Kendwa) are swimmable at all tides because they face open water rather than shallow tidal flats, which makes them better than the east coast beaches for year-round swimming.

Ruaha and Nyerere (Selous): Southern Tanzania

Southern Tanzania’s parks are off the radar for most visitors, which means you get extraordinary wildlife density without the vehicle counts of the northern circuit. Ruaha National Park is best June–October when the Great Ruaha River contracts and elephants, hippos, crocodiles, lions, and wild dogs are packed along its banks. Nyerere National Park (the former Selous) works June–December for boat safaris and walking safaris on the Rufiji River. Both parks are significantly quieter than the northern circuit at any season.

Mahale Mountains and Gombe: Western Tanzania

Chimpanzee trekking at Mahale Mountains National Park is possible year-round but best in July–October (dry, clear paths, chimps at lower altitudes) and January–February. Avoid March–May when rains make the steep mountain trails extremely difficult. Gombe National Park, made famous by Jane Goodall’s decades of research, follows similar seasonal patterns. Both parks require a fly-in from Arusha or Dar es Salaam.

Here’s our monthly guide to what you can expect throughout the year in Tanzania.

Visiting Tanzania in January

In January, there is still a chance of getting rain, the temperatures are getting higher, and the humidity is building. It’s still a good time to visit, as rates are still lower and the safari experience is excellent. At this time of year, the migration herds are calm in the southeastern part of the Serengeti for calving. The Ndutu Plains are very busy, but it’s still wonderful to see so many animals in one place. Since January is still in the green season between November and March, Tanzania still offers superb birdwatching opportunities, with its migratory birds arriving in their thousands.

In January, there is little rain, making the whole of Tanzania at large dry with less mud, which makes it easy for you to also hike the highest point in Africa.

Events & Festivals

• Zanzibar Swahili Festival

Visiting Tanzania in February

Migration and calving are still occurring in the Ndutu plains. The weather is hot and humid with a chance of rain, giving relief from the drought and bringing green landscapes, flowers, and birds. February is still the best time to go bird-watching.

Events & Festivals

• Sauti za Busara.
• Wildebeest calving season.
• Orchids in Kitulo National Park

Visiting Tanzania in March

Migrating herds are starting to leave the Ndutu plains, heading west toward the Grumeti River. This period is truly a low season before the heavy rains start, but humidity is building. This time of year offers excellent rates. This is the green season, bringing lush grasses and bushes that can make the spotting game more difficult. However, the season is still a wonderful time to travel, particularly for bird watchers, as parks are full of migratory birds, especially in the south. The migration of wildebeests and zebras is in the Grumeti area of the Serengeti heading north.

Events & Festivals

• Kilimanjaro Marathon.
• Nyama Choma Festival.
• Jalada Mobile Literary.
• Arts Festival

Visiting Tanzania in April.

The rains begin to taper off in some areas, although much of the country remains wet. Green landscapes, wildflowers, and birds, plus continued low-season prices, make the month a delightful time to travel if you can avoid the mud. The wildebeest begin to form thousands-strong herds that start migrating north and west in search of food, which is a spectacular sight.

Events & Festivals

• Wildebeest migration begins

Visiting Tanzania in May

Although May is still part of the rainy season, it is pretty dry recently, and rain is unlikely to last for the whole day on the mainland. Zanzibar can experience a lot of rain, making May a less favorable time of the year to visit.

Events & Festivals

• Mzalendo Halisi Music Festival

Visiting Tanzania in June

The rains are ending, the weather is clear, and landscapes are slowly beginning to dry out. Temperatures are also considerably cooler, and the Serengeti wildebeest migration is on the move. In this month of the year, the migration always takes place on the southeastern side of the Grumeti River.

Events & Festivals

• Bulabo Dance Festival

Visiting Tanzania in July

This month is the start of the peak season. The Migration is in the north of the Serengeti, moving toward Kenya, and elephants start to gather in Tarangire. The land is getting drier, and the spotting game is becoming easier. Temperatures are in the high 20°C to early 30°C, and the humidity is low. This time of the year provides the best chance to observe herds of animals in their hundreds as they cross Tanzania’s rivers like the Grumeti River.

Festival of the Dhow Countries in Zanzibar

Events & Festivals

• Festival of the Dhow Countries.
• Zanzibar International Film Festival.
• Dry season wildlife watching.
• Mwaka Kogwa.
• Ruaha Marathon.

Visiting Tanzania in August

This is a peak season, and Migration is still in the north of the Serengeti. As the land becomes more parched, the animals’ behavior becomes more predictable. The dense bush in Ruaha is drying out, so game spotting here becomes much easier. This month the key attraction is the Mara River and viewing Africa’s Big 5.

Events & Festivals

• Mara River Crossing

Visiting Tanzania in September

This is approaching the end of the migration process in Tanzania, and it’s still in the north of the Serengeti, with herds on both sides of the Kenya and Tanzania borders and high numbers of elephants in Tarangire. The northern circuit can be very busy, but it is less busy in the south, so for those who want to avoid crowds, it’s best to visit the southern parks and the country’s beautiful beaches and tackle Kilimanjaro.

Events & Festivals

• Bagamoyo International Festival of Arts & Culture

Visiting Tanzania in October

At this time, the migration has moved to Kenya, but game viewing in the central Serengeti remains excellent. Southern parks are particularly rewarding at this time of year, especially the Ngorongoro crater and the other parks in the south.

Events & Festivals

• Chimpanzee trekking in Mahale Mountains National Park

Visiting Tanzania in November

This month is a great time to take advantage of low-season rates and is still a popular time to travel. Although there is a risk of rain during the day as well, migrating herds are starting to travel south from Kenya; crossings can be seen in the north of the Serengeti.

Events & Festivals

• Karibu Music Festival

Visiting Tanzania in December

Swahili Fashion Week

Temperatures are high, and humidity also starts to build. The safari experience at this time of the year is good, with migrating herds in the north traveling to the southern Ndutu plains. The festive season is always very busy, so you should plan well in advance to ensure availability. It’s also an ideal time to climb Mt. Kilimanjaro.

Events & Festivals

• Swahili Fashion Week
• Christmas Day
• Boxing day
• New year

Talk to Our Tanzania Safari Experts

Choosing when to go to Tanzania is the first decision; getting it right shapes everything else. Our Arusha-based team has over 16 years and 10,000+ guests of experience matching travelers to the right season for their priorities. Tell us what matters most: the Mara crossing, the calving season, a beach finish, or a Kilimanjaro summit. We will send you a tailor-made itinerary and seasonal recommendations within 24 hours, no obligation.

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