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

In September, Cancún averages 31°C high / 25°C low with about 175 mm of rain; Isla Mujeres averages 32°C high / 25°C low with about 175 mm.

Cancún vs Isla Mujeres in September

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

Cancún vs Isla Mujeres — September climate, side by side

	🇲🇽 Cancún	🇲🇽 Isla Mujeres
Comfort score	78/100 (B)	78/100 (B)
Feels-like high	37°C	38°C
Avg high / low	31° / 25°	32° / 25°
Rainfall	175 mm	175 mm
Rainy days	23	23
Humidity	82%	84%
Air quality (AQI)	35	35

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

Month by month

Cancún vs Isla Mujeres in September — FAQ

Is September better in Cancún or Isla Mujeres?: Cancún and Isla Mujeres are nearly tied in September — 78 vs 78 on SeasonMap's comfort score. Cancún is sweltering, soaked, clean air; Isla Mujeres is sweltering, soaked, clean air.
What is the weather like in Cancún vs Isla Mujeres in September?: In September, Cancún averages 31°C high / 25°C low with about 175 mm of rain; Isla Mujeres averages 32°C high / 25°C low with about 175 mm.