Tanzania is a year-round destination, but timing matters depending on what you want to do.
January – March
Calving season in southern Serengeti. Great for safari. Kilimanjaro climbing is popular (dry and warm). Zanzibar is hot and humid but less crowded.
April – May
Long rains ("Masika"). Parks are lush and green. Fewer tourists = lower prices. Some lodges close. Not ideal for Kilimanjaro. Zanzibar gets heavy rain.
June – October
The peak dry season. Best overall time for safari (animals concentrate around water). Prime Kilimanjaro climbing season (coldest but driest). Mara River crossings Aug–Oct.
November – December
Short rains. The Serengeti turning green. Migration herds head south. Good for quieter safaris. Zanzibar short rain season — still pleasant between showers.
