Climate & best time to travel
Botswana's climatic pattern is typical of southern Africa, although its rainfall is less than that of countries further east. Rains in Botswana usually occur between December and March, when the average minimum temperatures are in the low 20°C. Some days will be bright and sunny, some will have thunderstorms in the afternoon, and some will just be grey.
As with Namibia, April and May in Botswana are generally beautiful, with clear skies and green landscapes. Nighttime temperatures are starting to drop during these months, particularly in the Kalahari. Note that places in and around the Okavango tend to have less extreme, more moderate temperatures than the three areas of the Kalahari.
From June to August, nighttime temperatures can be close to freezing in three areas, but it warms up quickly during the day when the sky is normally clear and blue. It is now a lot of “peak season” for most safari areas: the land is dry in most areas and the animals congregate around the few available water sources.
This continues into September and October, when temperatures rise again and the landscapes are dry. This is the best time for big game safaris — although October can also be very hot (with maximum temperatures sometimes approaching 40 °C).
November is hard to predict as it can sometimes be a continuation of October's heat while sometimes it's cooled by the first rains; it's always an interesting month.
The Okavango Delta is filled with water from Angola from May. The water level is highest in July. It then dries out gradually until there are only a few channels and water points left.

