The ideal time to visit Zanzibar is during the dry seasons, which offer sunny skies, calm seas, and perfect conditions for beach relaxation, water sports, and exploring the island. The cool, dry season from June to October is especially popular, with pleasant temperatures and low humidity. A second, shorter dry spell occurs from December to February, making it another great window for travel.

Avoid the long rainy season (March to May) if possible, as heavy downpours and high humidity can limit outdoor activities, although the island remains lush and fewer tourists visit during this time. Overall, Zanzibar is a year-round destination, but planning around the dry months ensures the best experience.