MultiDayTourFinder

Tanzania in May: safari weather, the migration, Kilimanjaro and Zanzibar

By the MultiDayTourFinder team

Updated 16 October 2026 · 3 min read

The Tarangire River valley in Tarangire National Park
Photo: Christoph Strässler, CC BY-SA 2.0, via Wikimedia Commons

The short answer

Month
May
Verdict
Mixed
Safari weather
Rains easing late
Great Migration
Central and western Serengeti, the rut
Kilimanjaro
Poor early, better late
Zanzibar
Wet

May is the tail of the long rains. It's still wet, especially on Zanzibar, but by late May the northern parks dry out and the herds start their long walk west, with the wildebeest rut in full swing.

Tanzania in May at a glance

The map opens on May; tap another month to compare.

Choose your month

Serengeti, May: Mixed~SerengetiNgorongoro and Tarangire, May: Mixed~Ngorongoro and TarangireKilimanjaro, May: Wet or difficult✕KilimanjaroZanzibar, May: Wet or difficult✕ZanzibarSouthern parks, May: Wet or difficult✕Southern parks

May

Still wet, especially on the coast. Green and empty, with low season fees in the Serengeti until mid month.

  • Serengeti (mixed)plus the Great Migration all year
  • Ngorongoro and Tarangire (mixed)the rest of the northern circuit
  • Kilimanjaro (wet or difficult)climbing conditions
  • Zanzibar (wet or difficult)beaches and Stone Town
  • Southern parks (wet or difficult)Nyerere and Ruaha
Simplified map. Weather varies from year to year; the strip below shows every month at once.

Where is the Great Migration in May?

Choose your month

Highlighted months: herds mostly in Tanzania.

KENYATANZANIAMara RiverMasai MaraNorthern SerengetiWestern CorridorCentral SerengetiSouthern Serengeti

May

Base in the Serengeti
Seronera or Western Corridor
River crossings
None

The rut begins and long columns head west and north.

Where the herds are: Central Serengeti and Western Corridor

Schematic map, not to scale. Typical positions only: the herds follow the rain, so timing can shift by several weeks from year to year.

May across the year

How May compares with the rest of the year in each region. The ringed column is May.

Swipe sideways to see all 12 months →

RegionJFMAMJJASOND
Serengetiplus the Great MigrationBestBestMixedWet or difficultMixedBestBestBestBestBestMixedBest
Ngorongoro and Tarangirenorthern circuitBestBestMixedWet or difficultMixedBestBestBestBestBestMixedBest
KilimanjaroclimbingBestBestMixedWet or difficultWet or difficultBestBestBestBestBestMixedMixed
ZanzibarbeachesBestBestMixedWet or difficultWet or difficultBestBestBestBestBestMixedBest
Southern parksNyerere, RuahaMixedMixedWet or difficultWet or difficultWet or difficultBestBestBestBestBestMixedMixed
BestMixedWet or difficultTanzania has two rainy seasons: the long rains from about mid March to May and the short rains in November. Northern safaris run all year; many southern camps close from April to May.

Where to go in May

  • Central and western Serengeti: Long columns of wildebeest heading west.
  • Ngorongoro Crater and Tarangire: Green and quiet.

What to avoid in May

  • Zanzibar early in the month.
  • The southern parks, many of which stay closed.

Events and holidays in May

  • Labour Day (1 May): A public holiday.

Weather in May

Average highs, lows and rainfall, with May highlighted.

Average daily high / low and monthly rainfall

MonthArushaabout 1,400 m, Moshi is warmerSerengetiSeronera, about 1,500 mNgorongoro rimabout 2,300 m, cold at nightZanzibarStone Town
Jan28° / 13°60 mm28° / 15°90 mm21° / 9°80 mm32° / 24°70 mm
Feb28° / 13°75 mm28° / 15°90 mm21° / 9°85 mm32° / 24°60 mm
Mar27° / 14°145 mm28° / 15°140 mm20° / 10°140 mm32° / 24°150 mm
Apr25° / 15°320 mm27° / 15°170 mm19° / 10°210 mm30° / 24°350 mm
May23° / 14°170 mm26° / 14°90 mm18° / 9°110 mm29° / 23°250 mm
Jun22° / 12°25 mm26° / 13°20 mm17° / 7°25 mm28° / 22°55 mm
Jul21° / 11°10 mm26° / 12°10 mm16° / 6°15 mm28° / 21°45 mm
Aug22° / 11°10 mm27° / 13°15 mm17° / 6°15 mm28° / 21°40 mm
Sep24° / 11°15 mm28° / 13°25 mm19° / 7°20 mm29° / 21°50 mm
Oct26° / 12°30 mm29° / 14°45 mm20° / 8°45 mm30° / 22°90 mm
Nov26° / 13°110 mm28° / 15°110 mm20° / 9°110 mm31° / 23°200 mm
Dec27° / 13°90 mm27° / 15°110 mm20° / 9°100 mm32° / 24°140 mm

Rounded long term averages. Blue shading marks the wetter months. Individual years can be hotter, colder or wetter.

A 6 day trip for May

Our suggestion for May: Tarangire, the central Serengeti and the Ngorongoro Crater. Every trip can be made private, or try your own route in our Tanzania trip planner.

Tip: Late May is a good value window before peak prices begin in June.

Want a May trip made for you?

A local specialist will send a free itinerary and price for 6 days, built around your dates.

Get a free quote

Other months

Thinking about April or June? See Tanzania in April and Tanzania in June, or compare every season in our guide to the best time to visit Tanzania.

Rather have a trip to Tanzania made just for you?

Answer a few quick questions and a local specialist will send you a free, no-obligation itinerary and price.

Frequently asked questions

Is May a good month for a Tanzania safari?

Late May can be good value, with the rains easing and the herds moving west. Early May is still very wet.

Sources we checked

Tanzania month by month

More Tanzania guides