Rio Grande Weather in August
Average highs run from 15°C on August 1 to 17°C on August 31, and lows from 12°C to 13°C. Normal precipitation for the month is 102 mm over about 11 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 16°C
- Average low
- 12°C
- Precipitation
- 102 mm
- Reanalysis high
- 23°CAug 29, 2017
- Reanalysis low
- 6°CAug 5, 1995
- Daylight
- 10 h 35 min to 11 h 25 min
- Cloud cover
- 58%
- Humidity
- 86%
- Dew point
- 12°C
- Wind
- 20.5 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 |
|---|---|---|---|---|---|
| Aug 1 | 15°C | 12°C | 20°C 2001 | 6°C 1991 | 35% |
| Aug 2 | 15°C | 12°C | 22°C 2015 | 6°C 1991 | 35% |
| Aug 3 | 15°C | 12°C | 22°C 2005 | 7°C 1991 | 36% |
| Aug 4 | 15°C | 12°C | 22°C 2005 | 6°C 1995 | 35% |
| Aug 5 | 15°C | 12°C | 22°C 2005 | 6°C 1995 | 35% |
| Aug 6 | 16°C | 12°C | 23°C 1993 | 9°C 2011 | 34% |
| Aug 7 | 16°C | 12°C | 22°C 1993 | 8°C 2007 | 33% |
| Aug 8 | 16°C | 12°C | 22°C 2015 | 7°C 2007 | 32% |
| Aug 9 | 16°C | 12°C | 22°C 2015 | 8°C 2000 | 32% |
| Aug 10 | 16°C | 12°C | 22°C 2015 | 8°C 2000 | 31% |
| Aug 11 | 16°C | 12°C | 18°C 2008 | 8°C 2007 | 30% |
| Aug 12 | 16°C | 12°C | 21°C 2012 | 8°C 2000 | 32% |
| Aug 13 | 16°C | 12°C | 21°C 2015 | 8°C 1999 | 34% |
| Aug 14 | 16°C | 12°C | 20°C 2006 | 6°C 1999 | 33% |
| Aug 15 | 16°C | 12°C | 21°C 1997 | 9°C 2013 | 33% |
| Aug 16 | 16°C | 12°C | 22°C 2011 | 9°C 2000 | 32% |
| Aug 17 | 16°C | 12°C | 21°C 1997 | 8°C 2020 | 33% |
| Aug 18 | 16°C | 12°C | 21°C 1997 | 9°C 2003 | 32% |
| Aug 19 | 16°C | 13°C | 21°C 1997 | 9°C 2019 | 33% |
| Aug 20 | 16°C | 13°C | 21°C 1996 | 7°C 2011 | 33% |
| Aug 21 | 16°C | 13°C | 22°C 2014 | 7°C 2020 | 34% |
| Aug 22 | 16°C | 13°C | 21°C 2005 | 8°C 2011 | 35% |
| Aug 23 | 17°C | 13°C | 22°C 1991 | 8°C 2013 | 35% |
| Aug 24 | 17°C | 13°C | 23°C 2012 | 9°C 2013 | 37% |
| Aug 25 | 17°C | 13°C | 23°C 1996 | 8°C 2003 | 37% |
| Aug 26 | 17°C | 13°C | 22°C 1991 | 7°C 2003 | 38% |
| Aug 27 | 17°C | 13°C | 23°C 2009 | 8°C 2018 | 38% |
| Aug 28 | 17°C | 13°C | 22°C 1993 | 8°C 2007 | 37% |
| Aug 29 | 17°C | 13°C | 23°C 2017 | 9°C 2000 | 38% |
| Aug 30 | 17°C | 13°C | 23°C 1997 | 9°C 2000 | 38% |
| Aug 31 | 17°C | 13°C | 23°C 2009 | 9°C 2002 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- August 1
- sunrise 7:17 AM, sunset 5:52 PM
- August 31
- sunrise 6:46 AM, sunset 6:11 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 2026-09-27. Sun and moon: computed with the NOAA solar equations and Meeus.