The climate is warm and dry with abundant seasonal rainfall. As a result of the rains the Masai Mara has sharp seasonal differences in terms of grass growth and numbers of herbivores. The rain has a knock-on effect on the entire landscape and ecosystem, right down to limiting the number of predators.
Rain usually falls during late afternoon or at night.
Despite being just a few degrees south of the Equator, daytime temperatures are mild due to the elevated altitude. The nights can be fairly cool. Summer extends from October to April, with December to March being the warmest months. The cool season is from May to September. Throughout the year, although winter time, from May to September, is the best time to view game.