Weather · Monterrey, Mexico
Monterrey Weather in September
September in Monterrey averages 30°C by day and 21°C at night, with about 130mm of rain. That makes it not the easiest month, weather-wise.
Avg high
30°C
86°F
Avg low
21°C
70°F
Rainfall
130mm
#1 wettest of 12
What to pack
Light, breathable clothes and strong sun protection. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Monterrey builds it around the season for you.