Botswana - November - March 70°F-90°F April - August: 55°F-75°F September - October: 65°F&ndash95°F. The summer season begins in November and ends in March with very high temperatures. This is also the rainy season, however it is unusual for there to be more than two consecutive days of rain. The winter season begins in May and ends in August and is the dry season when virtually no rainfall occurs. Winter days are invariably sunny and cool to warm however, evening and night temperatures can below freezing point in some areas. The in-between periods - April/early May and September/October - still tend to be dry, but the days are cooler than in summer and the nights are warmer than in winter |