This is a tricky month. If the short rains start early and if there has been rain in the south of Tanzania, then the herds would move down to the Serengeti quickly and there could be few wildebeest left in the Maasai Mara. If there has been a lack of rain in the south of Tanzania, then the herds would opt for permanent water in the central Serengeti or Lobo areas and move less quickly to the southern plains.