What is the weather like in Cancún vs Puerto Vallarta in September?

In September, Cancún averages 31°C high / 25°C low with about 175 mm of rain; Puerto Vallarta averages 33°C high / 25°C low with about 348 mm.

Cancún vs Puerto Vallarta in September

Cancún is the better pick in September — 78 vs 54 on SeasonMap's comfort score. Cancún is sweltering, soaked, clean air, while Puerto Vallarta is sweltering, soaked, clean air.

Cancún vs Puerto Vallarta — September climate, side by side

	🇲🇽 Cancún	🇲🇽 Puerto Vallarta
Comfort score	78/100 (B)	54/100 (D)
Feels-like high	37°C	41°C
Avg high / low	31° / 25°	33° / 25°
Rainfall	175 mm	348 mm
Rainy days	23	29
Humidity	82%	90%
Air quality (AQI)	35	33

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

Month by month

Cancún vs Puerto Vallarta in September — FAQ

Is September better in Cancún or Puerto Vallarta?: Cancún is the better pick in September — 78 vs 54 on SeasonMap's comfort score. Cancún is sweltering, soaked, clean air, while Puerto Vallarta is sweltering, soaked, clean air.
What is the weather like in Cancún vs Puerto Vallarta in September?: In September, Cancún averages 31°C high / 25°C low with about 175 mm of rain; Puerto Vallarta averages 33°C high / 25°C low with about 348 mm.