Uganda

Bwindi Impenetrable Forest

When to visit
January and June to August
Size
331 sq km
Temperature
23 'C
Rainfall
50mm
Age requirement
12 Year

Overview

About Bwindi Impenetrable Forest

Bwindi Impenetrable Forest shelters roughly half the world’s remaining mountain gorillas in an ancient rainforest covering 331 square kilometres on Uganda’s south-western border.

More than twenty habituated gorilla families can be visited across four trekking sectors — Buhoma, Ruhija, Rushaga and Nkuringo — with treks ranging from about an hour to a full day on steep, muddy ground between 1,160 and 2,600 metres.

The forest is genuinely ancient, having survived the last ice age when most African montane forest retreated, and its age shows in its diversity. Twenty-three of the twenty-four Albertine Rift endemic bird species occur here, alongside chimpanzee, L’Hoest’s and blue monkey, black-and-white colobus, forest elephant and over 200 species of butterfly.

Bwindi is a UNESCO World Heritage Site and the single most important reason most visitors come to Uganda. Gorilla permits are strictly limited to eight people per family per day, which keeps pressure on the animals low and makes advance booking essential rather than advisable.

People and culture

People and culture

The Batwa, forest hunter-gatherers who lived in and around Bwindi for millennia, were displaced when the park was gazetted in 1991 and now live in settlements along its margins without land rights of their own. Their situation is among the most difficult legacies of conservation in the region.

Batwa cultural experiences run from those villages and are the most direct way visitor money reaches the community. They cover forest skills, traditional medicine, hunting techniques and music, and are worth doing with an understanding of the history rather than as entertainment.

Bakiga farmers work the extraordinarily steep terraced hillsides that press right up against the forest edge, growing sorghum, beans and tea. The contrast between intensively cultivated slope and unbroken canopy, visible from almost any approach road, is one of the defining sights of a visit and illustrates the pressure the forest is under.

Community projects around Buhoma and Nkuringo channel a share of permit revenue into schools, clinics and craft cooperatives, and a portion of every gorilla permit is allocated to communities bordering the park under Uganda Wildlife Authority policy.

Wildlife encounters

Wildlife encounters

Bwindi exists for the mountain gorilla. Roughly half the world's remaining population lives in this forest, and more than twenty habituated family groups can be visited across four trekking sectors: Buhoma, Ruhija, Rushaga and Nkuringo.

The forest is ancient, having survived the last ice age, and holds an exceptional range of other life: chimpanzee, L'Hoest's and blue monkey, black-and-white colobus, forest elephant and over 200 butterfly species. Most of these are heard rather than seen through the dense understorey.

Common wild animals

  • African Elephant

    Rare

  • African Buffalo

    Rare

  • Leopard

    Rare

Birdlife

Birdlife

Around 350 bird species occur, including 23 of the 24 Albertine Rift endemics, which makes Bwindi one of the most significant birding destinations in Africa.

African green broadbill, Shelley's crimsonwing, handsome francolin, Rwenzori turaco and regal sunbird are the sought-after names. The Mubwindi Swamp trail from Ruhija is the classic birding route.

Common bird species

  • African Grey Hornbills

    Occasional

  • Common Fiscal

    Occasional

Getting there

How to get there

By Air

Light aircraft fly from Entebbe or Kajjansi to Kihihi and Kisoro airstrips in about an hour and a half, followed by a road transfer of one to two hours to your sector. Given the drive, most visitors fly at least one leg.

By Car

Bwindi lies eight to nine hours from Kampala, usually broken with a night at Lake Mburo or Queen Elizabeth. Roads within the park area are steep and rough, and a 4×4 is essential.

Weather

Weather and climate in Bwindi Impenetrable Forest

At 1,160 to 2,600 metres, Bwindi is cool and persistently wet. Daytime temperatures reach only 22°C to 23°C and nights fall to around 10°C, so warm and waterproof layers are needed year-round rather than packed as an afterthought.

Month by month

High and low temperature and rainfall, shaded by how good the month is for a safari.

  • Jan

    23° / 11°

    90 mm

  • Feb

    23° / 11°

    110 mm

  • Mar

    23° / 11°

    160 mm

  • Apr

    22° / 11°

    200 mm

  • May

    22° / 11°

    180 mm

  • Jun

    23° / 10°

    60 mm

  • Jul

    23° / 10°

    50 mm

  • Aug

    23° / 10°

    80 mm

  • Sep

    23° / 11°

    140 mm

  • Oct

    23° / 11°

    190 mm

  • Nov

    22° / 11°

    180 mm

  • Dec

    23° / 11°

    120 mm

  • Excellent
  • Very good
  • Good
  • Fair
  • Avoid

Rain falls in every month of the year, which is what sustains the forest and what makes the name accurate. The heaviest periods run from March to May and again from September to November, with annual rainfall exceeding 1,400 millimetres and considerably more on the higher ridges.

Even the drier months of June to August and December to February see regular showers. The difference is one of degree rather than kind: trails become passable rather than dry, and the mud is manageable rather than punishing.

That mud is the single most important practical consideration. Stout waterproof boots, gaiters, long trousers against stinging nettles and a proper waterproof jacket are essential regardless of the month.

Ruhija sits notably higher than Buhoma and its nights are genuinely cold, so check which sector you are staying in before deciding what to pack.

Best time to go

Best time to visit Bwindi Impenetrable Forest

Best months
Jan–Feb, Jun–Aug, Dec

Bwindi can be trekked year-round and gorilla sightings are near certain in any season, so the calendar is entirely about how hard the walk will be.

June to August and December to February are the drier months and much the easier time to trek. Trails are less treacherous, visibility in the forest is better, and photography is more rewarding without constant rain on the lens. Permits go fastest for these periods.

March to May and September to November are wetter, and Bwindi is wet even by rainforest standards. Trekking remains possible and permits are easier to obtain, but the mud is serious and the climbs much harder work.

April and November are the wettest and worth approaching with caution if fitness is a concern.

Birders often prefer the wetter months, when the Albertine Rift endemics are most active.

For a first gorilla trek the drier windows are the sensible choice and worth booking well ahead, since permits are capped at eight visitors per family per day and the better sectors fill months in advance.

Safety

Safety and security

Gorilla trekking rules are strict and exist to protect the animals: keep the required distance, wear a mask when instructed, and do not trek if you have a cold, flu or stomach illness. Gorillas are highly vulnerable to human respiratory infection.

The terrain is genuinely steep and treks can last from one to eight hours. Porters are available at the trailhead, are inexpensive and are worth hiring both for your own safety and for the local employment. Follow ranger instructions exactly if a silverback approaches.

Health precautions

A reasonable level of fitness matters more here than at almost any other park. Trekking involves sustained climbing at altitude on slippery ground, and there is no shortcut once you are in the forest.

Uganda requires yellow fever vaccination on entry. Malaria prophylaxis is advised despite the altitude, and typhoid, hepatitis A and B and tetanus are commonly recommended. Medical facilities are limited to Buhoma's small health centre, so insurance covering evacuation is essential.

Things to do

Things to do in Bwindi Impenetrable Forest

  1. Mountain Gorilla Trekking

    Buhoma · Ruhija · Rushaga · Nkuringo

    An hour with a habituated family, after a climb of one to eight hours.

  2. Gorilla Habituation Experience

    Rushaga Sector

    Four hours with a group still being habituated, rather than one.

  3. Albertine Rift Birding

    Mubwindi Swamp Trail

    Twenty-three of the twenty-four Albertine Rift endemics occur here.

  4. Batwa Cultural Experience

    Forest Margin Villages

    The forest's original inhabitants, displaced when the park was gazetted.

  5. Waterfall Trail

    Buhoma Sector

    A half-day forest walk to three falls, good for butterflies and birds.

  6. Nkuringo Ridge Walks

    Nkuringo Sector

    Village and ridge walking with views to the Virunga volcanoes.

FAQ

Frequently asked questions

How much does a gorilla permit cost and how far ahead should I book?

Uganda Wildlife Authority permits are priced per person per trek and are strictly limited, with only eight visitors allowed per habituated family per day. Booking several months ahead is strongly advised for the dry seasons of June to August and December to February, when demand is heaviest. Permits are usually arranged by your operator as part of the itinerary, since availability drives the whole trip's dates. They are non-transferable and tied to a named person and date, so cancellation insurance is worth having.

How difficult is gorilla trekking at Bwindi?

Harder than most visitors expect. Treks range from about one hour to eight hours each way, on steep, muddy and often trackless ground at altitudes between 1,160 and 2,600 metres. Rangers try to match visitors to groups by fitness, but nothing is guaranteed because the gorillas move daily. Hiring a porter at the trailhead is inexpensive, genuinely helpful and supports local employment. Once the family is located you are given one hour with them, regardless of how long the walk in took.

Which sector of Bwindi should I trek from?

There are four. Buhoma in the north is the most established with the widest choice of lodges, Ruhija is the highest and best for birding, and Rushaga and Nkuringo in the south have the most habituated families and offer the longer gorilla habituation experience. Your permit is tied to a specific sector, so decide where you are staying and book the permit to match. Moving between sectors takes several hours on rough mountain roads.

What should I wear and carry for a trek?

Stout waterproof boots with ankle support are the single most important item, along with gaiters, long trousers and long sleeves against stinging nettles, and a waterproof jacket regardless of season. Carry two litres of water, energy food, and your camera in a dry bag. Gardening gloves are surprisingly useful for grabbing vegetation on steep wet ground. Avoid bright colours, and leave perfume and strong deodorant behind. A walking stick is provided at the trailhead.

What is the gorilla habituation experience?

It is a longer alternative to a standard trek, available only in the Rushaga sector, where you spend four hours with a gorilla family still undergoing habituation rather than the standard one hour with a fully habituated group. Numbers are capped at four people, and the permit costs considerably more. The gorillas are less settled around humans, so encounters can be more distant, but the time and the smaller group size appeal strongly to photographers and repeat visitors.

Is Bwindi suitable for older or less mobile visitors?

It can be, with planning. Rangers assign visitors to gorilla families partly on fitness, so make your situation known clearly when booking rather than at the trailhead. Sedan chairs carried by porters are available at additional cost in several sectors and make trekking possible for people who could not otherwise manage the climb. Some families range consistently closer to the trailheads, and a good operator will request one of those on your behalf.

Can I see anything else at Bwindi besides gorillas?

Yes, though gorillas are what draws almost everyone. The forest holds chimpanzee, L'Hoest's and blue monkey, black-and-white colobus and forest elephant, though all are hard to see in dense vegetation. Birding is genuinely world-class, with twenty-three of the twenty-four Albertine Rift endemics recorded and the Mubwindi Swamp trail from Ruhija the classic route. The Batwa cultural experience and the Buhoma waterfall trail both fill a spare half day well. The Batwa cultural experience and the Buhoma waterfall trail both fill a spare half day well.

How do I get to Bwindi?

Light aircraft fly from Entebbe or Kajjansi to Kihihi and Kisoro airstrips in about an hour and a half, followed by a road transfer of one to two hours to your sector, and most visitors fly at least one leg. By road, Bwindi lies eight to nine hours from Kampala, usually broken with a night at Lake Mburo or Queen Elizabeth. Roads within the park area are steep and rough, and a 4×4 is essential in any season.

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