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Zanzibar weather in September

Zanzibar in September averages 26°C (78°F), 21 mm of rain and 8.6 hours of sun a day.

Of the twelve months in Zanzibar, September is the fourth coldest, the third driest and the third sunniest.

Zanzibar
Average temp
26°C (78°F)

20–31°C · 68–88°F

Rainfall
21 mm

Not much rain

Sunshine
8.6 h

hours per day

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What is Zanzibar like in September?

Daytime

Days are warm, typically in the mid-20s°C or above.

Rain

Rain is usually light.

Evening

Evenings stay warm.

What should I pack for Zanzibar in September?

  • High-factor sun cream

    With 8.6 hours of sun a day, burn time is short even in shade.

  • Sunglasses and a brimmed hat

    Midday glare is the part people underpack for, not the heat itself.

  • Loose cotton or linen

    Synthetics stop working once you are sweating through them all day.

  • A refillable water bottle

    Daily highs this warm need roughly double the water a temperate day does.

  • A layer for the evening

    The day swings about 11°C between its low and its high.

  • Comfortable walking shoes you can rinse

    Dry warm weather is walking weather, and dust gets into everything.

September compared with August and October

September in Zanzibar is 0.7°C warmer than August and about as wet as it, which averages 25°C (77°F).

September in Zanzibar is 1.1°C cooler than October and 53 mm drier than it, which averages 27°C (80°F).

Daylight in Zanzibar in September

On 15 September the sun is up for 12 hours 4 minutes in Zanzibar, rising about 06:16 and setting about 18:20 local time.

Where to stay in Zanzibar

Dates are a starting point for September.

All hotels in Zanzibar

Travel guides for Zanzibar

What to read before you book.

All travel guides in Zanzibar

Zanzibar weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How September compares with the rest of the year

September is highlighted. Every other month links to its own page.

Zanzibar weather by month: average temperature, rainfall, sunshine for each month, from 1991–2020 climate normals
MonthAverageRainfall
January29°C / 84°F43 mm
February29°C / 84°F76 mm
March28°C / 83°F176 mm
April27°C / 81°F266 mm
May26°C / 80°F161 mm
June25°C / 77°F36 mm
July25°C / 76°F18 mm
August25°C / 77°F21 mm
September26°C / 78°F21 mm
October27°C / 80°F74 mm
November28°C / 82°F127 mm
December29°C / 83°F124 mm

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FAQs about Zanzibar in September

September climate averages for Zanzibar, 1991–2020.

Zanzibar averages 26°C (78°F) in September, ranging from about 20°C (68°F) at night to 31°C (88°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Barely. September sees only about 21 mm, so rain is unlikely to affect your plans.

No. September averages 26°C (78°F) against 27°C (80°F) in October — 1.1°C cooler.

September is 0.7°C warmer than August, and about as wet.

Yes. September falls inside the most comfortable stretch of the year here, June to October, on temperature and rainfall together.

About 8.6 hours of sun a day on the 1991–2020 average — among the brighter months anywhere.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 12 hours 4 minutes of daylight in mid-September, against 12 hours 29 minutes in December and 11 hours 46 minutes in June.

On 15 September, sunrise is about 06:16 and sunset about 18:20 local time. Both shift across the month.