Tanzania has a varied geographical terrain, which creates regional variations in temperature. The coastal
climate is tropical and humid, whereas the northwestern highlands are cooler and temperate. Due to its proximity to the equator, the region is not
characterized by the extremes of winter and summer, but rather dry and wet seasons. Tanzania experiences two rainy seasons: a short rainy season from
October to December and a long rainy season from March to May. The dry season, and the best weather, lasts from June through September, when the
wildebeest begin their great migration from the south Serengeti to Kenya's Masai Mara. Take along a heavy sweater of jacket when visiting higher
elevations or northern game reserves.