Monterrey Weather in May
In May, Monterrey averages a high of 34°C (92°F) and a low of 20°C (69°F), from 50 years of daily records (1971–2025).
34°C
Average high
92°F
20°C
Average low
69°F
46°C
Record high
114°F · May 8, 1998
10°C
Record low
50°F · May 2, 2004
What May Is Like in Monterrey
- May in Monterrey has become 1.9°C (3.4°F) warmer on average: the 2011–2025 average against 1970–1989.
- A typical May brings 14 days above 35°C (95°F).
- The warmest May in the record was 2024; the coldest was 2004.
At least 1 mm of rain falls on 14% of May days, and the month averages 55 mm in total.
Warmest: 2024 (39.6°C)Latest: 2025 (35.9°C)10-year averageLong-run average (33.7°C)
Look Up a Day in May
See the weather in Monterrey on any May date, year by year.
Source: NOAA GHCN-Daily, Topo Chico (1971–2005); Monterrey (City) (1982–2025). Averages cover 1971–2025. How we compute this