Weather in Zanzibar

Weather — Zanzibar

Zanzibar weather is tropical year‑round: warm temperatures, high humidity for much of the year and a distinct wet season in spring. Expect daytime highs around the high 20s–low 30s °C, plenty of sunshine outside the rains, and sea temperatures of roughly 25–29 °C — ideal for swimming most months. If you’re planning flights or a beach holiday, the driest window (best time to visit Zanzibar) is June–October, while April is the wettest month and can bring heavy downpours.

Weather — Zanzibar — January

January is hot and very humid with average daytime highs near 30 °C and nights around 27 °C. Rainfall is relatively limited (around ten days with some rain) and the sea is pleasantly warm (~28 °C), so January is good for beach time, snorkeling and combining sun with cultural touring.

Weather — Zanzibar — February

February stays hot and humid but is typically one of the drier months, with only a few rainy days. Temperatures remain around 30/27 °C and sea temperatures close to 28 °C — a reliable month for sun-seekers and water activities.

Weather — Zanzibar — March

March is a turning month: temperatures still high (around 30/26 °C) but rainfall increases and humidity becomes more noticeable. Showers become more frequent, so plan outdoor excursions with flexible timing and keep an eye on short tropical downpours.

Weather — Zanzibar — April

April is the wettest month on Zanzibar — expect heavy rain and many overcast periods. Daytime temperatures are slightly lower than peak months but humidity stays high. This period is less suitable for guaranteed sunshine, though the island is lush and prices can be lower.

Weather — Zanzibar — May

May is a transition month with frequent showers but improving conditions toward the end of the month. Temperatures are pleasant (around 28/25 °C) and the sea remains warm, making it still possible to enjoy beach time between showers.

Weather — Zanzibar — June

June marks the start of the drier season: humidity eases, rainfall drops and temperatures sit near 28/24 °C. With clearer skies and comfortable sea temperatures (~27 °C), June is a popular month for beach holidays and diving.

Weather — Zanzibar — July

July is one of the coolest and driest months on Zanzibar. Expect mild sea breezes, lower humidity and daytime highs around 27 °C — ideal conditions for sightseeing, kite-surfing and long beach days.

Weather — Zanzibar — August

August remains dry and pleasant with comfortable temperatures (around 27/23 °C) and calm seas. It’s one of the best months for outdoor activities, clear snorkeling and reliable sunshine.

Weather — Zanzibar — September

September offers warm, largely dry weather with daytime temperatures creeping back into the high 20s. Sea conditions are good and humidity stays moderate — a solid choice for late-summer travel.

Weather — Zanzibar — October

October is still warm and is often a pleasant month for visitors, but occasional showers begin to return toward the end of the month. Daytime highs are around 29 °C and the island remains excellent for marine activities.

Weather — Zanzibar — November

November sees increasing rainfall and rising humidity as the short rains approach. Temperatures stay around 29/25 °C and there are more wet days, so pack a lightweight rain jacket and plan indoor alternatives.

Weather — Zanzibar — December

December is warm and humid with a mix of sunshine and showers. Sea temperatures rebound to about 28 °C, making December attractive for swimming and snorkeling, though occasional rains can interrupt clear-sky days.

Temperature table throughout the year