Piedras Negras Weather in May
Average highs run from 34°C on May 1 to 36°C on May 31, and lows from 18°C to 22°C. Normal precipitation for the month is 71 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
- 35°C
- Average low
- 21°C
- Precipitation
- 71 mm
- Reanalysis high
- 44°CMay 24, 2000
- Reanalysis low
- 8°CMay 4, 2013
- Daylight
- 13 h 17 min to 13 h 50 min
- Cloud cover
- 55%
- Humidity
- 56%
- Dew point
- 16°C
- Wind
- 16.2 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 | 34°C | 18°C | 43°C 2002 | 12°C 2015 | 21% |
| May 2 | 34°C | 19°C | 43°C 2002 | 10°C 2004 | 20% |
| May 3 | 34°C | 19°C | 40°C 1991 | 9°C 2013 | 20% |
| May 4 | 34°C | 19°C | 44°C 2003 | 8°C 2013 | 22% |
| May 5 | 34°C | 19°C | 42°C 2003 | 13°C 2013 | 23% |
| May 6 | 34°C | 19°C | 43°C 1998 | 14°C 2013 | 24% |
| May 7 | 34°C | 19°C | 43°C 1998 | 14°C 1992 | 26% |
| May 8 | 34°C | 20°C | 44°C 1998 | 12°C 1992 | 28% |
| May 9 | 34°C | 20°C | 41°C 2009 | 15°C 1992 | 29% |
| May 10 | 35°C | 20°C | 41°C 2008 | 15°C 1997 | 30% |
| May 11 | 35°C | 20°C | 42°C 2000 | 15°C 1993 | 31% |
| May 12 | 35°C | 20°C | 42°C 1995 | 15°C 1997 | 30% |
| May 13 | 35°C | 20°C | 43°C 1995 | 15°C 1997 | 31% |
| May 14 | 35°C | 20°C | 44°C 1995 | 12°C 2014 | 31% |
| May 15 | 35°C | 20°C | 42°C 2003 | 11°C 2014 | 30% |
| May 16 | 35°C | 20°C | 44°C 2001 | 14°C 2014 | 31% |
| May 17 | 35°C | 20°C | 43°C 2001 | 15°C 2014 | 31% |
| May 18 | 35°C | 21°C | 42°C 2001 | 15°C 2008 | 32% |
| May 19 | 35°C | 21°C | 43°C 2003 | 13°C 2002 | 32% |
| May 20 | 35°C | 21°C | 42°C 2001 | 14°C 2002 | 34% |
| May 21 | 35°C | 21°C | 44°C 1998 | 16°C 2002 | 33% |
| May 22 | 35°C | 21°C | 43°C 1998 | 16°C 2001 | 31% |
| May 23 | 35°C | 21°C | 42°C 2011 | 17°C 2017 | 30% |
| May 24 | 35°C | 21°C | 44°C 2000 | 15°C 2017 | 30% |
| May 25 | 35°C | 22°C | 42°C 2011 | 17°C 2017 | 29% |
| May 26 | 36°C | 22°C | 42°C 2018 | 17°C 1993 | 28% |
| May 27 | 36°C | 22°C | 43°C 2011 | 19°C 1993 | 28% |
| May 28 | 36°C | 22°C | 44°C 2011 | 18°C 1992 | 29% |
| May 29 | 36°C | 22°C | 41°C 2001 | 14°C 1992 | 29% |
| May 30 | 36°C | 22°C | 42°C 2018 | 15°C 1992 | 29% |
| May 31 | 36°C | 22°C | 42°C 1998 | 19°C 1992 | 28% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 7:01 AM, sunset 8:18 PM
- May 31
- sunrise 6:45 AM, sunset 8:35 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.