The best time of the year to visit Kenya is the boreal summer, from July to September. A second choice would be the boreal winter, especially January and February. Obviously, all this months correspond to the high season, hence the prices are more expensive.

Seasonal rains condition both road communications and some cyclic wildlife movements. There are two rainy seasons, the "long rains" from March to June and the "short rains" from October to December (for more details, read the climate and vegetation page). During these months, some dirt roads become heavily muddy and some parks get flooded, hindering road transit and even supply to the lodges.

On the other hand, the wildebeest herds at Masai Mara, one of the most visited parks, migrate on a cyclic basis from this reserve to Serengeti and back. Wildebeests and their zebra escorts arrive to Masai Mara right after the long rains, searching the young and salt-rich pastures. Thus, wildlife is more abundant in Masai Mara during the boreal summer.

In January and February, the weather is generally drier and hotter than in August. These months are suitable for visiting the country, but in the arid north temperatures rocket, while few wildebeests and zebra can be found at Masai Mara.