Mombasa vs Zanzibar in September

Mombasa and Zanzibar are nearly tied in September — 91 vs 93 on SeasonMap's comfort score. Mombasa is hot, a little rain, clean air; Zanzibar is sweltering, dry, clean air.

Mombasa vs ZanzibarSeptember climate, side by side

MombasaZanzibar
Comfort score91/100 (S)93/100 (S)
Feels-like high32°C34°C
Avg high / low29° / 23°31° / 22°
Rainfall45 mm22 mm
Rainy days157
Humidity77%75%
Air quality (AQI)3531

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Mombasa vs Zanzibar in September — FAQ

Is September better in Mombasa or Zanzibar?
Mombasa and Zanzibar are nearly tied in September — 91 vs 93 on SeasonMap's comfort score. Mombasa is hot, a little rain, clean air; Zanzibar is sweltering, dry, clean air.
What is the weather like in Mombasa vs Zanzibar in September?
In September, Mombasa averages 29°C high / 23°C low with about 45 mm of rain; Zanzibar averages 31°C high / 22°C low with about 22 mm.