Month by month
Nyerere in January
January sits inside the green season, the lighter half of the short rains before February's heavier totals, and it is the point where the bush turns fully lush after the rains of November and December. Most camps that will later close for the long rains are still running, and the river carries enough water for the boat safaris to work at full strength.
If you only want the answer
January in Nyerere means fresh green bush, steady rain and a river running high enough for excellent boating, with most camps still open before the March closures begin.
The Rufiji in the green
The thirty-year average puts January at 74 mm of rain over 12 days, with days reaching 32.9°C and nights holding at 23.6°C. The river and the lakes are full from the short rains that preceded it, so the hippo pods, the crocodile banks and the elephant crossings you might expect to wait for the dry season to see are already visible from a boat, just spread across more water rather than concentrated at its edges.
On land the picture is the opposite. Game disperses into the miombo now that surface water is everywhere, so vehicle drives work harder for sightings than the boat does. Birders benefit most: this is one of the two months rated best for birding, with resident colonies joined by whatever migrants are still passing through.
What is actually open
Unlike the true rains ahead, January is not a closure month. Beho Beho, Roho ya Selous, Siwandu, Kiba Point and Sand Rivers Selous are all running their normal season, and the lake and river camps around Mtemere gate operate as usual. The closures that define March through May have not started yet.
Wild dog denning has not begun either. That runs June to August, so a January trip is not built around den sightings, it is built around the water and the birds, with predators a matter of luck on the roads rather than a fixed location to visit.
Booking and a month-specific tip
Rates sit at their lowest point of the year and lead times are short, since this is not a month operators need to protect against demand. If value and birding matter more to you than predator density, January delivers both at once.
The concrete tip: run your boat safaris at dawn rather than midday. January's heat builds fast under the humidity, and the light and the bird activity on the water are both better in the first two hours after sunrise than at any other point in the day.