Monterrey Weather in August
In August, Monterrey averages a high of 35°C (96°F) and a low of 22°C (72°F), from 42 years of daily records (1971–2025).
35°C
Average high
96°F
22°C
Average low
72°F
42°C
Record high
108°F · August 17, 1982
15°C
Record low
59°F · August 22, 1976
What August Is Like in Monterrey
- A typical August brings 22 days above 35°C (95°F).
- The August heat record, 42°C (108°F) on August 17, 1982, has stood for 43 years.
- The coldest August reading, 15°C (59°F) on August 22, 1976, has not been matched in 49 years.
- August is Monterrey's warmest month of the year.
At least 1 mm of rain falls on 14% of August days, and the month averages 71 mm in total.
Warmest: 2019 (39.2°C)Latest: 2019 (39.2°C)10-year averageLong-run average (35.5°C)
Look Up a Day in August
See the weather in Monterrey on any August date, year by year.
Source: NOAA GHCN-Daily, Topo Chico (1971–2005); Monterrey (City) (1982–2025). Averages cover 1971–2025. How we compute this