3. November to April: Hot and Wet.
The onset of the rains brings the temperatures a few degrees, but it can still be hot with daytime temperatures in the high 30s. Humidity rises, especially during December to February, the months of greatest rainfall, but never reaches the uncomfortable high humidity of tropical rainforest areas. Drought, however, are common in Botswana, so it may not cool down much at this time. By the end of March the heat has diminished somewhat and April may be relatively mild with game species starting to concentrate again around perennial water as pans start to dry out. (A few large pans in a year of abundant rain hold water until September or even October)
Within a couple of weeks of the first good rains (any time from November to December) the desperately dry, dusty and khaki-grey bush is transformed into a verdant wonderland. In a good rainy season the pans fill up by December allowing game species to roam away from permanent dry season water, the vicinity of which is often overgrazed/over browsed. Game disperses at this time and whilst there is always wildlife to be seen in Mortem Game Reserve and Choke National park, game concentrations are generally reduced. Some nature enthusiasts find this season the most attractive time of the year, enjoying the vitality of the rejuvenated bush. Bird life is at its peak, especially in the period late November to March. By early December all migratory species have arrived in Botswana. In prime birding areas, such as the northern Choke National Park/Kansan area, keen, energetic and experienced birders can record around 300 species in three or four days.
The wet roads in this season present 4 x 4 driving challenges in certain places, especially in “black cotton” soil.
There is an explosion of insect’s life following rain, but insects are rarely the nuisance that many people imagine them to be, and this need not deter travelers. Frogs, too, abound at this time, and are particularly vocal following a heavy downpour.