What is the best time to visit Zanzibar for a private, budget, or luxury holiday?

Zanzibar can be visited throughout the year, and the best time depends on the type of holiday you prefer. January and February are generally warm and popular for beach holidays and ocean activities. March can still be warm, although rainfall may begin to increase. April and May are among the wetter months and can be quieter for travelers. June and July are generally drier and cooler, making them popular for beach holidays, excursions, and outdoor activities. August and September are also favorable months for enjoying beaches, sightseeing, and island excursions. October is usually warm, while November and December can bring short rains but still offer opportunities to enjoy Zanzibar.