Masai Mara in September

The Great Migration dominates most travel decisions, but timing depends on what you want to see. July through October brings the famous river crossings as wildebeest herds move between the Mara and Serengeti. August and September offer the most dramatic crossings, but also the highest prices and biggest crowds. Here's the insider secret: November through March delivers excellent wildlife with fewer vehicles and lower rates. The short rains in November green up the landscape and trigger impressive bird migrations — over 450 species call the Mara home. April and May bring heavy rains that can make roads impassable, but the few visitors who brave the weather often have the reserve almost to themselves. June marks the start of the dry season when animals congregate around permanent water sources, making them easier to spot. December and January offer perfect weather with warm days and cool nights, plus you might catch the southern migration as some herds move back toward the Serengeti. Avoid the Easter and Christmas holidays when Nairobi families flood the reserve for long weekends.