SeasonScore

Tanzania

Zanzibar in September

☀️ Dry season

Warm, humid and some showers.

🎒 Pack: light, breathable clothes & sunscreen · quick-dry fabrics · sunglasses & hat

Best months: Jul (9.0), Jun (8.8), Aug (8.8)

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Why September scores 8.7What goes into the score

How it works
🌡️ 31° / 20°C🌧️ 51 mm💧 dew pt 21°🍃 PM2.5 7
  • Weather comfort8.3
    • ✓Warm (31°C highs / 20°C lows)
    • !Humid (dew point 21°C)
    • ✓Mostly dry (~51 mm rain)
  • Air quality9.7
    • ✓Good (within WHO guideline) (PM2.5 ~7 µg/m³)
  • Seasonal hazards10.0
    • ·No notable seasonal hazards
  • Safety baseline6.5
    • ·Increased caution
Compare monthsPut September side by side with another month
SepJul
Score8.7 Excellent9.0 Excellent
Season☀️ Dry season☀️ Dry season
High / low31° / 20°29° / 21°
Rain51 mm45 mm
Humiditydew pt 21°dew pt 21°
PM2.57 µg/m³6 µg/m³

Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Zanzibar City weather-station normals. Rainfall: Zanzibar City weather-station normals (national met service).

Holidays & crowdsSeptember 2027

No long holidays

No long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.

No national public holidays in Tanzania this month.

National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).

Explore ZanzibarEvents, sights, food & souvenirs

Check event dates locally

An archipelago off Tanzania known for the historic Stone Town, spice plantations and white-sand beaches on the Indian Ocean.

Events in September

No major events on our calendar for September.

Coming up later

Zanzibar Revolution DayEvery year12 January every year

Public holiday marking the 1964 revolution, with official ceremonies.

Why go: Government offices and some businesses close.

Where: Across the islands

Long rainsDate variesUsually March to May

Heaviest rain of the year.

Why go: Some hotels close.

Where: Island-wide

Plan this tripTickets, data and transfers for Zanzibar

Airport transfer Kiwitaxi

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