What is the weather like in Cozumel vs Isla Mujeres in September?

In September, Cozumel averages 32°C high / 24°C low with about 132 mm of rain; Isla Mujeres averages 32°C high / 25°C low with about 175 mm.

Cozumel vs Isla Mujeres in September

Cozumel and Isla Mujeres are nearly tied in September — 79 vs 78 on SeasonMap's comfort score. Cozumel is sweltering, rainy, clean air; Isla Mujeres is sweltering, soaked, clean air.

Cozumel vs Isla Mujeres — September climate, side by side

	🇲🇽 Cozumel	🇲🇽 Isla Mujeres
Comfort score	79/100 (B)	78/100 (B)
Feels-like high	38°C	38°C
Avg high / low	32° / 24°	32° / 25°
Rainfall	132 mm	175 mm
Rainy days	20	23
Humidity	80%	84%
Air quality (AQI)	33	35

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

Month by month

Cozumel vs Isla Mujeres in September — FAQ

Is September better in Cozumel or Isla Mujeres?: Cozumel and Isla Mujeres are nearly tied in September — 79 vs 78 on SeasonMap's comfort score. Cozumel is sweltering, rainy, clean air; Isla Mujeres is sweltering, soaked, clean air.
What is the weather like in Cozumel vs Isla Mujeres in September?: In September, Cozumel averages 32°C high / 24°C low with about 132 mm of rain; Isla Mujeres averages 32°C high / 25°C low with about 175 mm.