November weather and where to go
November is supposed to be the start of the short rains (mvuli) period across Tanzania but this does vary depending on where you want to travel. Generally speaking the northern parks are good for game year-round and although the Serengeti receives rain, this subsequently means the wildebeest will be moving south across the plains to make the most of this moisture. If they have not already arrived from Kenya, they will do by November. The chart below shows the averages for the Serengeti throughout the month and the comparative average rainfall in Zanzibar
Tarangire National Park particularly hots up from November onwards with humidity joining the rains throughout summer. This makes for a slightly more uncomfortable climate, but of course, great game numbers (despite them being more difficult to see).