when to go
Best time to visit Tanzania: Wildlife viewing in Serengeti National Park is good throughout the year, but certain areas are better at specific months. The dry season (late June to September) offers the best wildlife viewing in general- with the wildebeest migration as its absolute highlight. The timing of the migration varies every year (the best chance of seeing it is during June and July) while the wildebeest calving is from late January to February.
BEST TIME TO GO: Best time to visit Tanzania.
January-February for the wildebeest calving; June-September for general wildlife viewing with a chance of seeing the wildebeest crossing of the Grumeti River June-July.
In General June to October is the Dry Season and best months to visit Tanzania and November to May is Wet Season and the most interesting thing is wildebeest calving in Late January to February.