October is the hottest month of the year. After no rain for the past few months the Zambezi starts to run low just before November.
In November, the green season starts, annual rains begin, and the landscape begins to transform into a lush green oasis. However, the volume of the falls will not recover until the rainy season progresses further. This is an ideal time for birding as the migratory bird species start arriving, marking the start of the birdwatching season.
River is low in December, so the falls are less dramatic than earlier in the year. With the start of summer rains, the vegetation gets full and greener. Birdwatching is superb in December.