San Rafael Weather in April
Average highs run from 23°C on April 1 to 19°C on April 30, and lows from 9°C to 5°C. Normal precipitation for the month is 30 mm over about 3 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
- 21°C
- Average low
- 7°C
- Precipitation
- 30 mm
- Reanalysis high
- 31°CApr 4, 1995
- Reanalysis low
- -3°CApr 16, 1999
- Daylight
- 11 h 42 min to 10 h 43 min
- Cloud cover
- 42%
- Humidity
- 55%
- Dew point
- 3°C
- Wind
- 12.6 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 | 23°C | 9°C | 29°C 1996 | 4°C 2013 | 19% |
| Apr 2 | 23°C | 9°C | 28°C 2015 | 3°C 2005 | 18% |
| Apr 3 | 23°C | 9°C | 30°C 2004 | 2°C 1996 | 18% |
| Apr 4 | 22°C | 9°C | 31°C 1995 | 2°C 2010 | 18% |
| Apr 5 | 22°C | 8°C | 28°C 2004 | 4°C 1999 | 18% |
| Apr 6 | 22°C | 8°C | 28°C 2019 | 2°C 1999 | 18% |
| Apr 7 | 22°C | 8°C | 29°C 2012 | 3°C 1998 | 18% |
| Apr 8 | 22°C | 8°C | 30°C 1996 | 3°C 2005 | 18% |
| Apr 9 | 21°C | 8°C | 28°C 2018 | 3°C 1995 | 16% |
| Apr 10 | 21°C | 8°C | 27°C 2009 | 0°C 1995 | 15% |
| Apr 11 | 21°C | 7°C | 27°C 2009 | 2°C 1995 | 14% |
| Apr 12 | 21°C | 7°C | 30°C 2009 | 0°C 2014 | 13% |
| Apr 13 | 21°C | 7°C | 27°C 2007 | -2°C 2014 | 13% |
| Apr 14 | 21°C | 7°C | 29°C 2003 | -2°C 2008 | 13% |
| Apr 15 | 21°C | 7°C | 29°C 2009 | 0°C 1999 | 13% |
| Apr 16 | 20°C | 7°C | 27°C 2007 | -3°C 1999 | 14% |
| Apr 17 | 20°C | 7°C | 27°C 2019 | -1°C 1999 | 15% |
| Apr 18 | 20°C | 7°C | 29°C 1995 | 0°C 1994 | 15% |
| Apr 19 | 20°C | 6°C | 29°C 2006 | -1°C 1994 | 15% |
| Apr 20 | 20°C | 6°C | 27°C 2018 | 1°C 1995 | 14% |
| Apr 21 | 20°C | 6°C | 26°C 2018 | 1°C 2007 | 14% |
| Apr 22 | 20°C | 6°C | 27°C 2009 | 1°C 2010 | 13% |
| Apr 23 | 20°C | 6°C | 27°C 1997 | 0°C 2004 | 12% |
| Apr 24 | 19°C | 6°C | 26°C 2008 | 0°C 2005 | 12% |
| Apr 25 | 19°C | 6°C | 26°C 2015 | -2°C 2005 | 11% |
| Apr 26 | 19°C | 6°C | 28°C 2018 | -1°C 2016 | 12% |
| Apr 27 | 19°C | 6°C | 26°C 2009 | -1°C 2016 | 13% |
| Apr 28 | 19°C | 6°C | 25°C 2009 | -2°C 2001 | 14% |
| Apr 29 | 19°C | 6°C | 28°C 1997 | -2°C 2001 | 15% |
| Apr 30 | 19°C | 5°C | 26°C 1994 | -2°C 2001 | 14% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- April 1
- sunrise 7:46 AM, sunset 7:28 PM
- April 30
- sunrise 8:09 AM, sunset 6:52 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.