Worst/Best Time to Visit Tanzania, Zanzibar & Great Migration

Worst/Best Time to Visit Zanzibar

The best time to visit Zanzibar is during the dry season from June to October, offering sunny skies, minimal rain, and ideal beach weather, perfectly aligning with Tanzania’s safari season. A second, shorter dry season occurs from mid-December to February. Avoid April and May, which have heavy rain.

Best Time Breakdown:

• June – October (Best Overall/Cooler): Ideal for snorkeling, diving, and sightseeing with pleasant temperatures.
• December – February (Hot/Dry): Very warm, sunny weather, popular around Christmas/New Year.
• July (Events): Hosts the annual Zanzibar International Film Festival.

Alternative Times:

• November – December (Short Rains): Occasional short, sharp showers with plenty of sunshine in between, offering quieter, lush landscapes.
• March – May (Long Rains): Best for budget travelers avoiding crowds, but Expect heavy, persistent rain and high humidity.

What is Special About Tanzania?

Tanzania is special for hosting Africa’s highest peak (Mount Kilimanjaro), the expansive Serengeti plains famous for the Great Migration, and the Ngorongoro Crater, the world’s largest intact volcanic caldera. It is a premier biodiversity hub with unique tree-climbing lions, rich cultural history, and stunning spice islands like Zanzibar.

Tanzania is naturally endowed with abundant attractions which include the country’s large wild animal population of approximately 4 million wild animals, 1,000 different species of birdlife, Highland mountains, vast lushes of savanna, and all other forms of flora, lakes, and rivers. The country hosts the Great Wildebeest Migration, the second largest terrestrial mammal that has ever occurred on this planet, what an amazing and dramatic phenomenon.

When To Go On Your Great Migration Safari

– The Great Migration is an annual expedition where over 1.5 million wildebeest, thousands of zebra and hundreds of thousands of gazelles mark their legendary journey embarked on circular movement that is approximately 1,800 miles in the long round trek of the drier lands in Tanzania. The Great Migration in the Serengeti is the second largest terrestrial mammal migration in the world and is secured as one of the seven natural wonders in Africa. The best time to see the migration in Serengeti will depend on what you exactly wish to witness. The best time to witness the wildebeest calving in Serengeti and Ngorongoro Conservation Area is between April and May which is usually a rainy season.

If the traveller is interested in witnessing the charismatic event where the mammal grazers try to cross the bloodthirsty river in the north, the Mara River, the best time is between July to December and is usually a dry season, many travellers prefer visiting the country in this periods of the year and the park is usually congested. The migration can, however, be witnessed in all months of the though in most cases there are difficulties in trekking the herds due to high rainfall in this month.

Travellers however interested in birding will have to take on the rainy seasons since more birdlife can be spotted during rainy seasons than during the drier seasons. The best time to see wildlife and the Great Migration is during the driest season between June and October since spotting wildlife becomes much easier when the concentrate near the water source and the vegetation is less dense.

Worst/Best Time to Climb Mount Kilimanjaro

The best time to climb Kilimanjaro is during the dry seasons: January to March (warmer) and June to October (best visibility, but colder). These periods offer clear skies, dry trails, and higher summit success rates. July to September and January to February are the most popular, offering optimal, albeit busier, conditions.

Kilimanjaro can be climbed all year round, thanks to its proximity to the equator which makes the surrounding weather relatively stable and mild. The two main seasons for climbing, however, are January to March and June to October; the two dry seasons on the mountain. Hiking can also be done in all other mountains in the country but basically during the dry season.

Best Times to Climb Kilimanjaro (Summary)

• Best Overall Weather (Dry & Clear): June, July, August, September, October.
• Warmest Conditions: January, February, early March.
• Best for Avoiding Crowds: Early March and late October, which are in the shoulder season.
• Rainy Seasons (Best to Avoid): April, May (heavy, persistent rain) and November (short, unpredictable showers).