The very best time to visit North Serengeti National Park for the epic Greatest Migration safari is from July to October, when millions of wildebeest, zebras, and gazelles gather along the life-giving Mara River, creating dramatic and unforgettable river crossings. During this peak season, all safari conditions are excellent with generally dry weather, open savannah roads, and improved accessibility for both fly-in flights and 4x4 drive-in safaris from Arusha, Moshi, or Karatu, while accommodation ranges from ultra-comfortable luxury lodges, mid-range tented camps, and intimate safari camps.