The best time to visit Kenya is during the dry seasons, from June to October and January to March, when wildlife viewing is at its best and travel conditions are easier, with July–September especially popular for the Great Migration in the Maasai Mara.
The best time to visit Kenya’s beaches, such as Diani Beach and areas around Mombasa, is December to March and July to October, when the weather is hot, sunny, and dry, with calm conditions perfect for swimming, snorkeling, or just relaxing on the coast.