Tanzania · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Zanzibar are June, July and August, when daytime temperatures are agreeable and rainfall is relatively low.
Zanzibar sees its warmest weather in February, when daytime highs average around 33°C, and its coolest in July (around 29°C).
Annual precipitation totals roughly 1650mm — April is typically the wettest month (~409mm) and July the driest (~31mm).
A distinctly wetter period runs from March to May — worth planning around if you prefer dry days.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 33° / 25°C | 74mm | 🤔 Fair |
| February | 33° / 24°C | 51mm | 🤔 Fair |
| March | 33° / 25°C | 177mm | ⚠️ Challenging |
| April | 31° / 25°C | 409mm | ⚠️ Challenging |
| May | 30° / 24°C | 298mm | 🤔 Fair |
| June | 29° / 23°C | 52mm | 👍 Good |
| July | 29° / 22°C | 31mm | 🌟 Great |
| August | 29° / 21°C | 38mm | 👍 Good |
| September | 30° / 21°C | 37mm | 👍 Good |
| October | 31° / 22°C | 116mm | 🤔 Fair |
| November | 31° / 23°C | 201mm | ⚠️ Challenging |
| December | 32° / 24°C | 168mm | ⚠️ Challenging |
January in Zanzibar is hot, with average daytime highs around 33°C (91°F) and nighttime lows near 25°C (76°F). Expect roughly 74mm of precipitation spread over about 6 rainy days, with a moderate amount of rain.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
February in Zanzibar is hot, with average daytime highs around 33°C (92°F) and nighttime lows near 24°C (76°F). Expect roughly 51mm of precipitation spread over about 4 rainy days, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
March in Zanzibar is hot, with average daytime highs around 33°C (91°F) and nighttime lows near 25°C (76°F). Expect roughly 177mm of precipitation spread over about 11 rainy days, and this is one of the wetter months.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
April in Zanzibar is hot, with average daytime highs around 31°C (87°F) and nighttime lows near 25°C (76°F). Expect roughly 409mm of precipitation spread over about 18 rainy days, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
May in Zanzibar is warm, with average daytime highs around 30°C (85°F) and nighttime lows near 24°C (75°F). Expect roughly 298mm of precipitation spread over about 14 rainy days, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — light summer clothing · sunscreen and sunglasses · compact umbrella or rain jacket
June in Zanzibar is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 23°C (73°F). Expect roughly 52mm of precipitation spread over about 5 rainy days, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
July in Zanzibar is warm, with average daytime highs around 29°C (84°F) and nighttime lows near 22°C (72°F). Expect roughly 31mm of precipitation spread over about 4 rainy days, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
August in Zanzibar is warm, with average daytime highs around 29°C (85°F) and nighttime lows near 21°C (70°F). Expect roughly 38mm of precipitation spread over about 6 rainy days, with little rainfall.
🎒 What to pack — light summer clothing · sunscreen and sunglasses
September in Zanzibar is hot, with average daytime highs around 30°C (87°F) and nighttime lows near 21°C (70°F). Expect roughly 37mm of precipitation spread over about 5 rainy days, with little rainfall.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle
October in Zanzibar is hot, with average daytime highs around 31°C (88°F) and nighttime lows near 22°C (72°F). Expect roughly 116mm of precipitation spread over about 7 rainy days, and this is one of the wetter months.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
November in Zanzibar is hot, with average daytime highs around 31°C (88°F) and nighttime lows near 23°C (74°F). Expect roughly 201mm of precipitation spread over about 14 rainy days, and heavy rainfall is common — this is peak wet season territory.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket
December in Zanzibar is hot, with average daytime highs around 32°C (89°F) and nighttime lows near 24°C (75°F). Expect roughly 168mm of precipitation spread over about 12 rainy days, and this is one of the wetter months.
🎒 What to pack — breathable summer clothing · sunscreen, hat and sunglasses · refillable water bottle · compact umbrella or rain jacket