San Luis Weather in April
Average highs run from 31°C on April 1 to 31°C on April 30, and lows from 22°C to 24°C. Normal precipitation for the month is 31 mm over about 6 wet days.
April day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
April at a glance
- Average high
- 31°C
- Average low
- 23°C
- Precipitation
- 31 mm
- Reanalysis high
- 34°CApr 18, 1999
- Reanalysis low
- 19°CApr 12, 1998
- Daylight
- 12 h 21 min to 12 h 52 min
- Cloud cover
- 43%
- Humidity
- 68%
- Dew point
- 20°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 |
|---|---|---|---|---|---|
| Apr 1 | 31°C | 22°C | 33°C 1997 | 20°C 2007 | 12% |
| Apr 2 | 31°C | 22°C | 32°C 2017 | 19°C 2010 | 13% |
| Apr 3 | 31°C | 23°C | 33°C 1995 | 20°C 2010 | 14% |
| Apr 4 | 31°C | 23°C | 33°C 2002 | 20°C 2004 | 15% |
| Apr 5 | 31°C | 23°C | 33°C 2002 | 20°C 1999 | 15% |
| Apr 6 | 31°C | 23°C | 33°C 2020 | 20°C 1999 | 15% |
| Apr 7 | 31°C | 23°C | 33°C 2020 | 20°C 1997 | 15% |
| Apr 8 | 31°C | 23°C | 33°C 2020 | 21°C 1997 | 15% |
| Apr 9 | 31°C | 23°C | 33°C 2020 | 20°C 1997 | 15% |
| Apr 10 | 31°C | 23°C | 34°C 2020 | 21°C 2002 | 16% |
| Apr 11 | 31°C | 23°C | 34°C 2020 | 21°C 1998 | 16% |
| Apr 12 | 31°C | 23°C | 34°C 1999 | 19°C 1998 | 17% |
| Apr 13 | 31°C | 23°C | 33°C 2020 | 19°C 1998 | 17% |
| Apr 14 | 31°C | 23°C | 33°C 2020 | 19°C 1998 | 18% |
| Apr 15 | 31°C | 23°C | 32°C 2020 | 19°C 1998 | 19% |
| Apr 16 | 31°C | 23°C | 33°C 2013 | 20°C 1998 | 20% |
| Apr 17 | 31°C | 23°C | 33°C 1999 | 20°C 1998 | 20% |
| Apr 18 | 31°C | 23°C | 34°C 1999 | 21°C 1998 | 18% |
| Apr 19 | 31°C | 23°C | 33°C 1999 | 21°C 2009 | 19% |
| Apr 20 | 31°C | 23°C | 32°C 2006 | 21°C 1993 | 20% |
| Apr 21 | 31°C | 23°C | 32°C 2006 | 21°C 1993 | 20% |
| Apr 22 | 31°C | 23°C | 33°C 2020 | 21°C 2003 | 22% |
| Apr 23 | 31°C | 23°C | 33°C 2015 | 21°C 1995 | 23% |
| Apr 24 | 31°C | 23°C | 33°C 1999 | 21°C 2005 | 24% |
| Apr 25 | 31°C | 23°C | 33°C 2020 | 21°C 1992 | 24% |
| Apr 26 | 31°C | 23°C | 33°C 1995 | 22°C 1993 | 25% |
| Apr 27 | 31°C | 23°C | 33°C 2015 | 22°C 2002 | 25% |
| Apr 28 | 31°C | 24°C | 34°C 2005 | 21°C 1993 | 26% |
| Apr 29 | 31°C | 24°C | 33°C 2006 | 20°C 1992 | 26% |
| Apr 30 | 31°C | 24°C | 33°C 1998 | 20°C 1992 | 26% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- April 1
- sunrise 6:57 AM, sunset 7:18 PM
- April 30
- sunrise 6:35 AM, sunset 7:27 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.