worldweather27°Cnear normal
usually 27°C–28°C
night: exceptionally cool
rain: more rain than usual
wind: exceptionally light
Weather in Zanzibar - 14-day forecast
Detailed weather forecast for Zanzibar, Tanzania: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Zanzibar
today☁️
27°💧 0.3 mm
Sun☁️
27°💧 0.2 mm
Mon🌧️
28°💧 0.7 mm
Tue🌧️
28°💧 0.4 mm
Wed🌧️
27°💧 2.7 mm
Thu🌧️
28°💧 1.9 mm
Fri🌧️
28°💧 1.6 mm
Sat🌧️
28°💧 1.8 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Tuesday 8 Sept in Zanzibar, the forecast high is 28°C. Typical daytime temperatures at this time of year range from 27°C to 28°C, so it will be exceptionally warm. It is warmer than 96% of similar days.
27°Ccooler than usual
usually 27°C–28°C
cooler than 81% of similar days
night: exceptionally cool
rain: typical rainfall
wind: exceptionally light
28°Cwarmer than usual
usually 27°C–28°C
warmer than 78% of similar days
night: exceptionally cool
rain: more rain than usual
wind: exceptionally light
28°Cexceptionally warm
usually 27°C–28°C
warmer than 96% of similar days
night: cooler than usual
rain: more rain than usual
wind: exceptionally light
27°Cexceptionally cool
usually 27°C–28°C
cooler than 91% of similar days
night: cooler than usual
rain: exceptionally wet
wind: exceptionally light
28°Cexceptionally warm
usually 27°C–28°C
warmer than 95% of similar days
night: cooler than usual
rain: exceptionally wet
wind: lighter than usual
28°Cwarmer than usual
usually 27°C–28°C
warmer than 81% of similar days
night: cooler than usual
rain: exceptionally wet
wind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 27°C by day. The coolest year was 1994 (26°C) and the warmest was 2023 (28°C). The current forecast averages 28°C - higher than in 76% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Zanzibar
Zanzibar 30 & 45-day weather - long-range outlook
Next 16 days · forecast
28°
around 24° at night · days with rain: 5
Weeks 3-4 · avg for September
30°
around 22° at night · rain chance 21%
Weeks 5-7 · avg for October
31°
around 23° at night · rain chance 20%
The 30 & 45-day outlook for Zanzibar: the next 16 days are a numerical forecast updated daily - on average 28° by day and 24° at night. Further out we rely on multi-year climate averages: around 30° in September, and about 31° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Zanzibar
Saturday5 September 2026
☁️27°overcast clouds
Sunday6 September 2026
☁️27°broken clouds
Monday7 September 2026
🌧️28°light rain
Tuesday8 September 2026
🌧️28°light rain
Wednesday9 September 2026
🌧️27°light rain
Thursday10 September 2026
🌧️28°light rain
Friday11 September 2026
🌧️28°light rain
Saturday12 September 2026
🌧️28°light rain
Sunday13 September 2026
🌧️29°light rain
Monday14 September 2026
🌧️29°light rain
Tuesday15 September 2026
🌧️29°light rain
Wednesday16 September 2026
🌧️28°light rain
Thursday17 September 2026
🌧️28°light rain
Friday18 September 2026
🌧️28°light rain
Saturday19 September 2026
🌧️27°light rain
Sunday20 September 2026
🌧️29°light rain
UV index in Zanzibar - is it safe to sunbathe?
Today the UV index in Zanzibar is 6 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Sea temperature - Zanzibar
Water today
27°C
Week avg
27°C
Waves today
0.4 m
How's the water?
warm
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Zanzibar
Air quality in Zanzibar is currently very good. Fine particulate PM2.5: 8.1 µg/m³, PM10: 12.7 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Zanzibar | 8.1 | 12.7 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 04:00).
Zanzibar weather through the year
Warmest, driest months on average: June, July, August, September.
Nearby and related places
FAQ - Zanzibar weather
What is the weather like in Zanzibar today?
Today it is about 27° during the day and 23° at night, overcast clouds.
How far ahead can I check the forecast for Zanzibar?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.