Monterrey Weather in September
In September, Monterrey averages a high of 31°C (88°F) and a low of 21°C (69°F), based on 54 years of historical weather data from TOPO CHICO.
31°C
Average high
88°F
21°C
Average low
69°F
41°C
Record high
106°F · 2011
3°C
Record low
37°F · 2001
What to Expect in Monterrey in September
Typical September days in Monterrey reach 31°C (88°F) during the afternoon and cool to around 21°C (69°F) overnight. On average, measurable rain falls on about 27% of days this month. Over the past 54 years, September temperatures in Monterrey have ranged from a record high of 41°C (2011) down to a record low of 3°C (2001).
For a day-by-day look or other months, see the full Monterrey weather history.