Driving Botswana in the wet season: what becomes impassable, what becomes magnificent

Botswana's wet season runs roughly from November to March, with a tail that sometimes spills into April. It is not continuous rain: most of it falls as convective thunderstorms in the late afternoon or overnight — violent, spectacular, and usually over within an hour or two. A typical January day means a dry, easy-driving morning, then a sky that turns black around 3 p.m. By African standards the volumes are modest: Maun averages around 550 mm a year, Kasane and the north-east about 700 mm, while the south-western Kalahari gets under 250 mm. January is the wettest month, roughly 150 mm in Maun.

What matters to a driver is not the average but the variability. The same calendar dates can hand you a dusty track one year and a quagmire the next; the first rains sometimes arrive in mid-November, sometimes only in late December. An itinerary pinned to the day six months in advance will not survive that lottery. Build in slack and fallback stops rather than a timetable.

One final point, and it is the one people get wrong: rain and flood are not the same thing here. The rain hitting your windscreen is local. The water that swells the Okavango Delta comes from the Angolan highlands and takes months to travel down: it reaches the Panhandle around April and the far reaches of the delta in June or July, by which time not a drop is falling locally. Driving in the wet season is therefore not driving "during the flood" — the two events are a good six months apart.

Start with the good news: much of Botswana sits on Kalahari sand, which drains remarkably well. A soaked sandy track is often easier to drive than a dry one, because compacted sand carries better. The trap lies elsewhere — in the clay depressions, the notorious black cotton soil of old floodplains. Dry, it sets like concrete and holds deep, axle-jarring ruts. Wet, it turns into a greasy paste that sticks to the tyres, packs the tread solid within three metres and kills traction outright. A loaded 4x4 can settle onto its diffs with no warning at all.

The problem areas are well known to regulars: the ground around Xakanaxa and Third Bridge in Moremi, the Savuti Marsh, and the fringes of the Makgadikgadi pans. Add to that the water crossings and seasonal rivers. A dry crossing on the way out can be running on the way back after one night-time storm, and Moremi's log bridges — demanding even in the dry season — are sometimes half submerged. On Savuti, the ruts carved by bogged-down vehicles then bake hard and leave the track punishing for months.

Translate all of this into journey times and keep it simple: double them. From Mababe Gate to Savuti, the Sand Ridge Road covers 65 km and already takes 3 to 4 hours in the dry, through deep sand. In January, with detours around standing water and two recoveries, the same leg can eat an entire day. In the wet season you plan in driving hours, never in kilometres.

There is no single "Botswana in the rain" — different ground reacts in opposite ways to the same downpour. The table below summarises what the rain changes in the areas most used by self-drivers. Treat it as an order of magnitude: the real state of a track is confirmed at the entrance gate, on the morning itself, with the rangers.

There is no official schedule of seasonal closures in Botswana, and that matters when you are building an itinerary. The Department of Wildlife and National Parks (DWNP) closes sections case by case, when they become dangerous or when vehicle traffic would wreck the track for good. The public campsites inside the parks, meanwhile, are run by private concessionaires who can suspend bookings on their own account. That leaves you with two parties to ask — and neither commits months ahead.

The most recent episode illustrates the principle neatly: in early 2026, prolonged rains led to road access being suspended to parts of Moremi, with reopening pushed back several times. This is neither rare nor predictable. The method that works: email the campsite operator two to three weeks before, reconfirm the day before, ask at the gate which route is open that morning, and keep a fallback that doesn't require a committing crossing. Park fees and access rules change regularly, so check them with the DWNP before you leave rather than on a dated blog post.

The bright side is genuine. The rains trigger calving in most herbivores: impala, wildebeest and springbok drop young en masse between November and January, and the predators follow — this is the period with the most action. Africa's longest land migration happens at the same time: zebra leave the delta fringes after the first rains for the grasslands of Nxai Pan and the Makgadikgadi, where they spend December, January and February. Add the return of the migrant birds, saturated green everywhere, storm skies you simply cannot photograph in July, and rental and accommodation rates that are markedly lower.

A study by H. L. A. Bartlam-Brooks, M. C. Bonyongo and S. Harris, published in 2011 in the journal Oryx, tracked GPS-collared zebra on the fringes of the Okavango Delta and documented a 588 km round trip to the Makgadikgadi grasslands, starting in November right after the first rains and completed by around May (study available on Google Scholar: scholar.google.com/scholar?q=Bartlam-Brooks+Bonyongo+Harris+zebra+migration+Botswana+Oryx). In other words, the spectacle doesn't start on a fixed date: it follows the rain, exactly as your itinerary will have to.

The trade-off is just as real, and it is the part the brochures skip. Water is everywhere: seasonal pools, filled pans, puddles in every hollow. Animals no longer depend on permanent waterholes, so the old tactic of parking by the river and waiting stops working. At the same time the grass grows to bonnet height and the bush closes in on the tracks: a leopard fifteen metres away becomes invisible. You see fewer animals, and you see them less clearly — but the ones you do see are often doing something.

The dry-season kit is not enough. On black cotton soil it is not power that gets a vehicle out, it is preparation and patience. Two non-negotiable rules before you even talk equipment: never enter a water crossing without walking it first with a stick, and never cross a black cotton section on your own if you can avoid it.

Northern Botswana — the Okavango Delta, Chobe, Kasane, Ngamiland — is a malaria transmission zone, and the wet season is the highest-risk period of the year. The mechanism is straightforward: rain creates breeding sites, and cases follow with a lag of about a month. A study by E. Chirebvu, M. J. Chimbari, B. N. Ngwenya and B. Sartorius, published in 2016 in PLoS ONE and based on Tubu village in the Okavango Delta, measured exactly that: a clear correlation between rainfall and clinical malaria cases at a one-month lag (r = 0.417) (study available on Google Scholar: scholar.google.com/scholar?q=Chirebvu+Chimbari+Ngwenya+Sartorius+clinical+malaria+Tubu+Botswana). Talk to a doctor about prophylaxis at least a month before departure.

On the rental side, read the exclusions before you sign. Almost every southern African 4x4 hire company excludes water damage: river crossings, flooded pans, deep puddles, submersion, hydrolocked engines. None of it is covered by any package, even with the excess bought down to zero. Check the scope of roadside assistance too: in several contracts, recovery from a national park and extraction of a bogged vehicle remain the renter's responsibility — and a tow truck coming up from Maun to Savuti is expensive. Ask in writing at the booking stage, not at the counter on collection day.

Botswana's wet season is not a discount season, but it is not for everyone either. It suits you if you have already driven a 4x4 in difficult terrain, if you are travelling in two vehicles or accept restricting yourself to sandy areas, if your priority is photography, birds, young animals and predators rather than ticking off a species list, and if your schedule can absorb losing a whole day to a recovery without the rest of the trip collapsing.

It does not suit a first safari, a short and tightly timed trip, a group determined to see the Big Five, or anyone planning to reach Kubu Island or cross the pans. There is an honest compromise, though: aim for the shoulders — late November and early December, before the ground saturates, or late March and April, when things are drying out but everything is still green and rates haven't climbed back. That is where the green season gives its best without demanding an expedition convoy.