Zanzibar is a tropical island and an all year round destination, however the rainy season is generally from April to May. The tropical climate means that it never gets freezing cold here, but the cooler months from May through to September you may want to have a sweater or jersey, especially for the evenings as it can get a bit chilly – especially on that sunburn!
The busiest months of travel to Zanzibar are from mid-June through to September as this is also a peak time to enjoy safari and most people end the circuit with a week or so on the island to relax and unwind. The Christmas and New Year time is also a peak time of travel and is a popular escape for many of our clients fleeing the cold British winter.
So in summary, you can really visit Zanzibar anytime of the year!