San Luis Weather in August
Average highs run from 32°C on August 1 to 32°C on August 31, and lows from 26°C to 26°C. Normal precipitation for the month is 43 mm over about 10 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
- 32°C
- Average low
- 26°C
- Precipitation
- 43 mm
- Reanalysis high
- 36°CAug 9, 2016
- Reanalysis low
- 23°CAug 6, 1995
- Daylight
- 13 h 02 min to 12 h 33 min
- Cloud cover
- 52%
- Humidity
- 72%
- Dew point
- 23°C
- Wind
- 13.3 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 | 32°C | 26°C | 34°C 1998 | 24°C 1994 | 30% |
| Aug 2 | 32°C | 26°C | 35°C 2017 | 25°C 1992 | 31% |
| Aug 3 | 32°C | 26°C | 34°C 2019 | 25°C 1994 | 31% |
| Aug 4 | 32°C | 26°C | 35°C 2007 | 24°C 2006 | 32% |
| Aug 5 | 32°C | 26°C | 35°C 2007 | 24°C 1995 | 32% |
| Aug 6 | 32°C | 26°C | 35°C 2020 | 23°C 1995 | 31% |
| Aug 7 | 32°C | 26°C | 35°C 2007 | 24°C 2000 | 31% |
| Aug 8 | 32°C | 26°C | 35°C 1998 | 24°C 2000 | 30% |
| Aug 9 | 32°C | 26°C | 36°C 2016 | 24°C 1996 | 28% |
| Aug 10 | 32°C | 26°C | 35°C 2004 | 25°C 1993 | 28% |
| Aug 11 | 32°C | 26°C | 35°C 2003 | 25°C 2001 | 28% |
| Aug 12 | 32°C | 26°C | 35°C 1999 | 24°C 2014 | 28% |
| Aug 13 | 32°C | 26°C | 35°C 2006 | 24°C 1997 | 28% |
| Aug 14 | 32°C | 26°C | 35°C 2006 | 24°C 1993 | 28% |
| Aug 15 | 32°C | 26°C | 34°C 2008 | 24°C 1993 | 28% |
| Aug 16 | 32°C | 26°C | 35°C 2006 | 24°C 1993 | 28% |
| Aug 17 | 32°C | 26°C | 34°C 1999 | 25°C 1994 | 28% |
| Aug 18 | 32°C | 26°C | 34°C 2001 | 24°C 2002 | 29% |
| Aug 19 | 32°C | 26°C | 35°C 2020 | 24°C 1996 | 30% |
| Aug 20 | 32°C | 26°C | 35°C 2016 | 24°C 1992 | 31% |
| Aug 21 | 32°C | 26°C | 35°C 2016 | 24°C 1991 | 32% |
| Aug 22 | 32°C | 26°C | 35°C 2016 | 24°C 1996 | 33% |
| Aug 23 | 32°C | 26°C | 35°C 1998 | 24°C 1992 | 34% |
| Aug 24 | 32°C | 26°C | 35°C 1998 | 25°C 2013 | 34% |
| Aug 25 | 32°C | 26°C | 34°C 1998 | 24°C 1992 | 33% |
| Aug 26 | 32°C | 26°C | 34°C 2017 | 24°C 1992 | 34% |
| Aug 27 | 32°C | 26°C | 35°C 2019 | 25°C 2000 | 34% |
| Aug 28 | 32°C | 26°C | 34°C 2020 | 24°C 1993 | 36% |
| Aug 29 | 32°C | 26°C | 34°C 1996 | 24°C 1996 | 35% |
| Aug 30 | 32°C | 26°C | 34°C 1996 | 25°C 1991 | 34% |
| Aug 31 | 32°C | 26°C | 34°C 2000 | 24°C 2014 | 34% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- August 1
- sunrise 6:39 AM, sunset 7:41 PM
- August 31
- sunrise 6:47 AM, sunset 7:20 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.