September is one of the most underrated months for gorilla trekking in Uganda. It sits at the transition between the long dry season and the short rains, offering a combination of mostly settled weather, lower lodge prices, and smaller visitor numbers compared to the peak July and August period. For travellers with flexibility in their schedule, September can deliver the complete Bwindi experience — extraordinary gorilla encounters, green forest scenery, and a quieter atmosphere — at a more accessible cost.
Uganda’s seasons and where September falls
Uganda experiences two rainy seasons and two dry seasons each year, though the pattern is influenced by the country’s varied topography and can differ meaningfully between regions. The long dry season runs from June through September and is generally considered the best trekking period. The short rains typically begin in October and run through December. A shorter dry period occurs from January through February, while the long rains span March through May.
September occupies the closing weeks of the long dry season. In practice, this means the first two to three weeks of September tend to behave much like August — reliable sunshine, lower humidity, and firm trail conditions. The final week of September can bring the first tentative rains of the short rains season, though their arrival is variable from year to year. In some years, October conditions bleed into late September; in others, September stays dry right through to the end of the month.
Bwindi Impenetrable National Park sits in southwestern Uganda at elevations between 1,160 and 2,607 metres above sea level. Even in the dry season, Bwindi receives more rainfall than most national parks in Uganda because of its position on the edge of the Albertine Rift escarpment, where orographic lift causes moisture to condense regularly. The term “dry season” at Bwindi means fewer prolonged rains, not an absence of cloud and mist.
Trail conditions in September
Trail conditions in September are generally good to excellent, particularly in the first half of the month. The dry season progressively firms up the clay-heavy soils that characterise Bwindi’s steep terrain. By September, the paths used most frequently by ranger-guided treks are at their most stable and least muddy. This makes September an accessible choice for trekkers who are concerned about physical difficulty — the reduced mud means less slipping on steep descents and more reliable footing on the ascents that dominate most Bwindi gorilla treks.
Vegetation coverage in September is still lush by comparison to the truly dry conditions of July — the forest has received enough residual moisture through the dry season to maintain its distinctive impenetrable canopy. This is important from a photography perspective: the forest in September looks like the archetypal rainforest rather than a somewhat desiccated dry-season version of itself. Light filtering through dense green canopy, moisture lingering in morning mist, and deep shadow contrasts between the forest floor and the canopy above all make September visually compelling.
If you are trekking in late September, carrying good waterproof gear remains advisable. The shoulder season means rain is possible at any point. Experienced trekkers carry a compact rain poncho or lightweight waterproof jacket that they can access quickly without stopping. Wet trails are not impassable but they do slow progress and require more caution on steep sections.
Visitor numbers and permit availability
July and August are the peak months for gorilla trekking in Uganda, driven by summer holidays in Europe and North America and the settled weather of the long dry season. September marks the beginning of the shoulder season, with visitor numbers declining noticeably from August’s peak. This shift has several practical benefits for trekkers who plan in September.
Gorilla trekking permits are easier to secure for September travel than for the high season, though this should not encourage complacency. Uganda Wildlife Authority limits each habituated gorilla group to eight visitors per day, and Bwindi currently has over twenty habituated groups spread across four sectors — Buhoma, Ruhija, Rushaga, and Nkuringo. Despite this capacity, popular dates in September can still sell out months in advance, particularly for the more accessible Buhoma and Rushaga sectors. Book permits at least three to four months ahead for September travel to secure your preferred dates and sectors.
The reduced visitor numbers in September also mean less congestion at Bwindi’s entry points and at the popular lodges near the trailheads. The atmosphere on trek feels more intimate than during the July–August peak, when multiple trekking parties may be setting out simultaneously from the same sector. In September, you are more likely to have a quieter briefing experience and a sense of the forest as genuinely remote rather than as a managed visitor circuit.
Accommodation availability and pricing
September is typically a shoulder-season pricing period for Uganda’s safari lodges. Many high-end lodges — including properties in the luxury bracket near Buhoma and Rushaga — offer reduced rates in September compared to July and August peak prices. The reduction varies by property, but discounts of ten to twenty percent relative to peak season are not uncommon. For travellers who value luxury accommodation but are sensitive to cost, September offers a window to access top-tier properties at more accessible prices.
Mid-range and budget lodges near Bwindi also tend to have better availability in September than in the peak season. This means greater choice for travellers at all budget levels and less pressure to book specific properties many months in advance. That said, booking accommodation at least two to three months ahead is still advisable for September travel — Bwindi’s limited accommodation supply means that quality properties fill earlier than many travellers expect.
Wildlife and forest activity in September
Mountain gorillas are present in Bwindi year-round — they do not migrate or hibernate, and habituated groups are located by ranger teams each morning from where they were last tracked the previous day. This means the fundamental gorilla trekking experience is consistent across all months of the year. What changes seasonally is forest accessibility and the gorillas’ own behaviour in response to vegetation and food availability.
In September, gorilla groups may be found at a range of elevations within the park. The long dry season sometimes pushes gorillas to lower elevations where food sources are more abundant, but Bwindi’s year-round moisture means the distribution is less extreme than in drier parks elsewhere in Africa. September generally offers accessible trek lengths — rangers’ reports from the previous day’s tracking mean that briefings give useful guidance on whether to expect a long or short trek before setting out.
The broader wildlife experience in and around Bwindi in September is also rewarding. L’Hoest’s monkeys, red-tailed monkeys, and black-and-white colobus are active in the forest canopy. The dry season’s reduced undergrowth makes some species easier to spot from the trail. Bird activity at Bwindi remains impressive year-round, though the long rains of March to May are considered the best birding period — September still offers excellent birding by most standards, particularly for the Albertine Rift endemics that Bwindi is famous for.
Combining September trekking with other Uganda destinations
September is an excellent month for a broader Uganda safari itinerary. Queen Elizabeth National Park, located a few hours’ drive from Bwindi, is also at the tail end of the dry season in September, making it an ideal time for wildlife drives. The Kazinga Channel between Lakes George and Edward is particularly productive — hippo and buffalo congregate along its banks, and the reduced vegetation makes game viewing from both vehicles and boats exceptionally clear.
Kibale National Park, home to the best chimpanzee trekking in Uganda, is accessible and productive in September. The chimpanzee habituation experience in Kibale, which allows full-day immersion with a habituating chimp group, is available year-round and represents one of the great wildlife experiences of East Africa. Combining Kibale and Bwindi in a single itinerary — often called the “primates and plains” or “great apes” circuit — works well in September.
Rwenzori Mountains National Park, home to Africa’s third-highest peak and a UNESCO World Heritage Site, is also at its most accessible in September. The upper mountain zones are drier in the dry season and the views from higher elevations are clearer. Day hikes into the lower Rwenzori forests can be combined with a Bwindi gorilla trek on a week-long itinerary for travellers seeking both jungle primates and mountain scenery.
What to pack for September trekking
The standard gorilla trekking packing list applies in September with some seasonal adjustments. Long-sleeved shirts and long trousers protect against nettles, thorns, and insects. Waterproof hiking boots are essential — even in the dry season, forest trails can be damp and firm ankle support on steep terrain is important. Bring both a lightweight rain poncho and a warm layer — Bwindi’s high elevation means mornings can be surprisingly cold even in the dry season, with temperatures sometimes dipping below 10°C before sunrise.
Gaiters — lightweight straps that seal the gap between your boot and trouser leg — are strongly recommended for all Bwindi treks. They prevent forest debris, small rocks, and mud from entering your boots. Safari supply shops in Kampala and many lodge gift shops near Bwindi stock them if you cannot bring them from home.
September brings lingering morning mist that can be beautiful but also challenging for photography. A lens cloth and protective pouches for camera equipment are important. If photographing with a mirrorless or DSLR camera, a rain cover for the camera body provides peace of mind when morning mist descends without warning.
Planning and booking for September
September’s combination of good conditions, lower prices, and reduced crowds makes it one of the best-value months for gorilla trekking in Uganda. The key to maximising a September trip is early planning. Book permits three to four months in advance, book accommodation at least two months ahead, arrange your domestic connections and internal transfers as part of the initial booking rather than as an afterthought, and confirm your Kampala hotel or Entebbe overnight for arrival and departure days.
Many operators offer September-specific packages that bundle permits, transfers, accommodation, and supporting activities like chimpanzee trekking or community visits into a single quoted price. Comparing several operators’ September packages is a useful exercise both for understanding what is available and for negotiating the best combination of quality and value. The gorilla trekking permit itself is fixed in price — currently USD 800 per person per trek — but the accommodation, guiding, and logistics wrapped around it vary considerably.
September in Bwindi rewards the traveller who has done their homework. Conditions are rarely perfect — mud, mist, and distance can always challenge any trek — but September’s balance of dry season stability and shoulder season accessibility makes it a consistently satisfying choice for one of Africa’s most extraordinary wildlife encounters.
