What is the weather like in Mexico City vs Monterrey in September?

In September, Mexico City averages 25°C high / 14°C low with about 178 mm of rain; Monterrey averages 31°C high / 22°C low with about 81 mm.

Mexico City vs Monterrey in September

Mexico City is the better pick in September — 81 vs 73 on SeasonMap's comfort score. Mexico City is warm, soaked, muggy air, while Monterrey is sweltering, rainy, clean air.

Mexico City vs Monterrey — September climate, side by side

	🇲🇽 Mexico City	🇲🇽 Monterrey
Comfort score	81/100 (A)	73/100 (B)
Feels-like high	26°C	34°C
Avg high / low	25° / 14°	31° / 22°
Rainfall	178 mm	81 mm
Rainy days	21	9
Humidity	80%	70%
Air quality (AQI)	65	47

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

Month by month

Mexico City vs Monterrey in September — FAQ

Is September better in Mexico City or Monterrey?: Mexico City is the better pick in September — 81 vs 73 on SeasonMap's comfort score. Mexico City is warm, soaked, muggy air, while Monterrey is sweltering, rainy, clean air.
What is the weather like in Mexico City vs Monterrey in September?: In September, Mexico City averages 25°C high / 14°C low with about 178 mm of rain; Monterrey averages 31°C high / 22°C low with about 81 mm.