Zanzibar weather in December
December in Zanzibar: sweltering, rainy, with clean air — an excellent time to visit.
#9 of 12 months in Zanzibar · #140 of 604 destinations to visit in December · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Zanzibar climate normals — December
| Daytime high | 30°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 114 mm / 4.5 in | 🌧 rainy |
| Rainy days | 23 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 11 h/day | |
| Daylight | 12.5 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Zanzibar in December — FAQ
- Is December a good time to visit Zanzibar?
- December in Zanzibar: sweltering, rainy, with clean air — an excellent time to visit. It ranks #9 of 12 months for Zanzibar on SeasonMap's comfort score (82/100).
- What is the weather like in Zanzibar in December?
- In December, Zanzibar averages a daily high of 29.6°C and a low of 25.8°C, with about 113.8 mm of rain over roughly 23.2 rainy days.
- What is the air quality in Zanzibar in December?
- Zanzibar has a mean US Air Quality Index of about 39 in December.