Zanzibar, in season.

The four seasons

Zanzibar has four seasons: Kaskazi, Masika, Kuzi, and Vuli. The year is shaped by two monsoons and two rainy shoulders. The edges shift by a week or two each year, but the shape is stable. Each season carries its own sea state, light, and rhythm — and most things on the island make sense only in the context of which season they fall in.

The full reference on choosing a window is when to visit Zanzibar. The seasons themselves are mapped visually on the Zanzibar Seasons compass. The week-view compass lives at /wiki.

Best time to visit

The best time to visit Zanzibar is June to October. Dry, breezy, low humidity, almost no rain. For glass-flat sea and peak underwater visibility, January and February. For festivals, February (Sauti za Busara) and June (ZIFF). For kitesurfing, the Kuzi window from June through September. The two activity-specific references are the best time to visit Zanzibar for diving and the best time for kitesurfing.

Weather, month by month

Zanzibar's daytime temperature sits between 23°C and 33°C year-round; what changes month to month is wind, sea state, and rainfall. The variables that matter are wind, sea state, and rainfall. April is the wettest month; July and August are the windiest and coolest; January and February are the hottest and stillest. The full month-by-month reference lives on Zanzibar weather by month, with single-month pages for January, February, March, April, May, June, July, August, September, October, November, and December.

2026 events

The 2026 Zanzibar calendar is anchored by two festivals: Sauti za Busara in February and the Zanzibar International Film Festival in June — alongside Zanzibar Revolution Day (12 January), Mwaka Kogwa (late July), and the lunar Islamic calendar. The full curated list with structured Event metadata is on Zanzibar events 2026.

What to do

The defining things to do on Zanzibar are diving at Mnemba, a sunset dhow off Stone Town, kitesurfing at Paje, walking Stone Town at dusk, and a fly-in day to Saadani. On the water: diving and snorkelling around Mnemba atoll; sunset dhow sailing off Stone Town; kitesurfing on Paje beach; sandbank mornings at low tide. Inland: walking Stone Town at dusk; Jozani forest for the endemic red colobus; spice farms and the agricultural belt near Embe Estate. At distance: a fly-in day safari to Saadani National Park on the mainland — the only Tanzanian park where the bush meets the ocean. The broader collection is on things to do on Zanzibar.

A week on the island

A typical week holds three structured days and the rest left intentionally open. Two days in Stone Town to acclimatise. One day on the water for a sunset dhow. One reef day at Mnemba. One fly-in safari day to Saadani. The remainder inland, or doing nothing. The full eight-day reading is on the 8-day Zanzibar itinerary.

Common questions

• What is the best month to visit Zanzibar?

  July, August, and September are the most reliable months — dry, breezy, low humidity, cool nights. For glass-flat sea and peak underwater visibility, January and February. April is the wettest month and best avoided unless you want the island at its quietest.

• Does Zanzibar have seasons?

  Yes. Zanzibar has four Swahili monsoon seasons named for the prevailing winds: Kaskazi (Dec–Feb, northeast monsoon, hot and calm), Masika (Mar–May, the long rains), Kuzi (Jun–Sep/Oct, southeast trade winds, dry and cool), and Vuli (Oct–Nov, short rains).

• When is rainy season in Zanzibar?

  There are two: Masika, the long rains, runs from March through May, with April the wettest. Vuli, the short rains, brings brief afternoon storms in October and November. Kaskazi (Dec–Feb) and Kuzi (Jun–Sep) are the dry windows.

• Is Zanzibar good year-round?

  Yes, with one caveat. Eight months of the year are reliably good — Kaskazi (Dec–Feb), Kuzi (Jun–Oct), and the Vuli shoulder (Nov). The exception is Masika (Mar–May), when many east-coast hotels close and travel slows.

• When is the best time for diving or kitesurfing?

  For diving, January and February — Kaskazi brings glass-calm sea and peak visibility around Mnemba atoll. For kitesurfing, June through September — Kuzi delivers strong, steady southeast trade winds across Paje on the east coast.

How to read this site

Start with the season — when to visit — then narrow to a window with weather by month. Cross-check the 2026 calendar for festivals and holidays. Build the trip from the eight-day itinerary and the broader things-to-do reference. For depth, read the full Zanzibar guide; for context, the wiki and about pages.