Tanzania Safari in May — What to Expect During the Long Rains

May is the heart of Tanzania's long rainy season, and it is the month most tour operators will steer you away from. They have good reason — some camps close, some roads become impassable, and the weather is genuinely unpredictable. But for the right traveller, a May safari in Tanzania offers something the peak season cannot: empty parks, exceptional green-season photography, and prices that are 30-40% lower than July or August.

What the Weather Actually Looks Like

The long rains (masika) run from mid-March through May. In May, rainfall is typically heaviest in the first three weeks, with conditions beginning to ease by late May. Rain usually falls as afternoon or evening thunderstorms rather than all-day drizzle — mornings are often clear and good for game drives.

Temperatures remain warm: 24-28°C during the day. The landscape is at its most lush — green plains, full waterholes, wildflowers across the savanna. If you are interested in landscape photography, May light can be extraordinary.

Wildlife in May

The common assumption — that rain means no game viewing — is wrong. Animals do not disappear in the wet season. What changes is their distribution:

• Dispersed across the ecosystem. Without the dry-season pressure to concentrate around water sources, animals spread out. Sightings can require more driving, but the encounters you find are often in complete solitude — no other vehicles.
• Calves and young animals. Many species calve in the wet season. In May you will see young wildebeest, zebra, impala, and gazelle — fresh calves that did not exist two months earlier.
• Predators remain active. Lions, leopards, and cheetahs hunt year-round. Resident predator populations in the Serengeti and Ngorongoro do not migrate. You will find them — it may take slightly longer.
• Birdlife at its peak. May is excellent for birds. Migratory species are still present, waterholes are full of waders, and raptors are active. Over 500 species are recorded in the northern circuit parks.

The Great Migration in May

In May, the wildebeest herds are typically in the western Serengeti corridor, beginning to move toward the Grumeti River. The river crossing spectacle at Grumeti starts in late May to early June. A well-timed May safari can catch the early crossings — with very few other visitors present.

The massive Mara River crossings happen later (July-October). But the Grumeti crossings are dramatic in their own right, and May timing puts you ahead of the crowd.

Which Parks Stay Accessible

Not all parks are equally viable in May:

• Serengeti (central and western): The main roads remain passable. Central Serengeti (Seronera) is accessible year-round. Western corridor camps reopen in late May as conditions improve.
• Ngorongoro Crater: Accessible year-round. The crater floor drains well and the wildlife concentration inside the caldera means excellent viewing regardless of season.
• Tarangire: Accessible, though some tracks into the deeper park areas may be soft. The river holds water and elephants are present throughout.
• Lake Manyara: Accessible. The lake itself is at its fullest in May — flamingo and waterbird numbers are high.
• Ruaha and Nyerere (southern circuit): Most southern circuit camps close entirely in April-May. Some Ruaha camps reopen in late May. Check current status before planning a southern circuit trip in May.

Practical Considerations

Cost. May is low season. Camp rates drop significantly — 30-40% reductions are standard. Some camps that are $832+ per night in peak season drop to $468-500. The quality of the experience does not drop proportionally.

Camp closures. Check which specific camps are open. Many luxury properties close for the wet season and undergo maintenance. Safaris Tanzania maintains current knowledge of camp operational status.

Vehicles. A 4WD Land Cruiser with good tyres handles wet-season driving. Avoid itineraries with a high volume of game-drive hours in the first week of May when conditions are heaviest.

Roads between parks. Tarmac roads between Arusha, Manyara, and Ngorongoro are fine. Park roads vary — central Serengeti routes are well-maintained; remote areas require local knowledge.

Who May Is Right For

May works well for: photography-focused travellers who want solitude, returning visitors who have done the peak-season experience and want something different, budget-conscious travellers who want quality safari at lower cost, and birdwatchers who prioritise avian diversity over big-cat density.

May is not ideal for: first-time visitors who have one chance and want guaranteed maximum game density, families with young children whose patience may be tested by longer drives to find dispersed animals, or anyone with a rigid schedule that cannot flex if a road becomes impassable.

Safaris Tanzania operates year-round and knows current May conditions in each park. WhatsApp Kassim at +255 786 110 786 to discuss whether May timing fits your priorities.