Monterrey Weather in May
Average highs run from 30°C on May 1 to 31°C on May 31, and lows from 14°C to 16°C. Normal precipitation for the month is 40 mm over about 9 wet days.
May day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
May at a glance
- Average high
- 30°C
- Average low
- 15°C
- Precipitation
- 40 mm
- Reanalysis high
- 39°CMay 8, 2003
- Reanalysis low
- 3°CMay 3, 2013
- Daylight
- 13 h 07 min to 13 h 38 min
- Cloud cover
- 49%
- Humidity
- 53%
- Dew point
- 9°C
- Wind
- 14.0 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| May 1 | 30°C | 14°C | 37°C 2002 | 8°C 2014 | 20% |
| May 2 | 30°C | 14°C | 36°C 2002 | 5°C 2004 | 20% |
| May 3 | 30°C | 14°C | 36°C 1998 | 3°C 2013 | 19% |
| May 4 | 30°C | 14°C | 37°C 2003 | 7°C 2013 | 20% |
| May 5 | 30°C | 14°C | 38°C 2003 | 11°C 2017 | 21% |
| May 6 | 30°C | 14°C | 36°C 1998 | 10°C 2013 | 23% |
| May 7 | 30°C | 14°C | 38°C 1998 | 9°C 1992 | 26% |
| May 8 | 30°C | 14°C | 39°C 2003 | 9°C 1992 | 28% |
| May 9 | 30°C | 14°C | 38°C 2003 | 11°C 2018 | 29% |
| May 10 | 30°C | 14°C | 38°C 2003 | 10°C 1997 | 30% |
| May 11 | 30°C | 15°C | 37°C 1998 | 8°C 1993 | 29% |
| May 12 | 30°C | 15°C | 37°C 2002 | 10°C 1997 | 29% |
| May 13 | 30°C | 15°C | 37°C 1998 | 10°C 2014 | 28% |
| May 14 | 30°C | 15°C | 36°C 1995 | 7°C 2014 | 29% |
| May 15 | 30°C | 15°C | 37°C 2003 | 6°C 2014 | 29% |
| May 16 | 30°C | 15°C | 37°C 1995 | 7°C 2014 | 30% |
| May 17 | 30°C | 15°C | 37°C 2000 | 10°C 2012 | 30% |
| May 18 | 30°C | 15°C | 36°C 1998 | 10°C 2008 | 32% |
| May 19 | 30°C | 15°C | 36°C 1998 | 11°C 2006 | 33% |
| May 20 | 30°C | 15°C | 37°C 2019 | 9°C 2009 | 33% |
| May 21 | 30°C | 15°C | 37°C 1998 | 10°C 2002 | 33% |
| May 22 | 30°C | 15°C | 37°C 1998 | 11°C 2009 | 32% |
| May 23 | 30°C | 15°C | 37°C 1998 | 12°C 2009 | 32% |
| May 24 | 31°C | 15°C | 36°C 2012 | 13°C 2009 | 32% |
| May 25 | 31°C | 15°C | 36°C 2000 | 12°C 1993 | 32% |
| May 26 | 31°C | 15°C | 36°C 2017 | 12°C 1993 | 32% |
| May 27 | 31°C | 16°C | 37°C 2011 | 13°C 2007 | 32% |
| May 28 | 31°C | 16°C | 38°C 2011 | 12°C 1993 | 33% |
| May 29 | 31°C | 16°C | 38°C 2011 | 13°C 2008 | 34% |
| May 30 | 31°C | 16°C | 36°C 2011 | 13°C 1992 | 34% |
| May 31 | 31°C | 16°C | 36°C 2012 | 13°C 2015 | 33% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- May 1
- sunrise 6:05 AM, sunset 7:12 PM
- May 31
- sunrise 5:50 AM, sunset 7:28 PM
Other months
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.