San Rafael Weather in April
Average highs run from 33°C on April 1 to 34°C on April 30, and lows from 25°C to 26°C. Normal precipitation for the month is 39 mm over about 9 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
- 33°C
- Average low
- 26°C
- Precipitation
- 39 mm
- Reanalysis high
- 40°CApr 29, 2015
- Reanalysis low
- 23°CApr 3, 1991
- Daylight
- 12 h 14 min to 12 h 31 min
- Cloud cover
- 53%
- Humidity
- 68%
- Dew point
- 22°C
- Wind
- 25.2 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 |
|---|---|---|---|---|---|
| Apr 1 | 33°C | 25°C | 37°C 2011 | 24°C 1997 | 14% |
| Apr 2 | 33°C | 25°C | 36°C 2013 | 23°C 1991 | 14% |
| Apr 3 | 33°C | 26°C | 36°C 2017 | 23°C 1991 | 14% |
| Apr 4 | 33°C | 26°C | 36°C 2017 | 24°C 2009 | 14% |
| Apr 5 | 33°C | 26°C | 37°C 2003 | 24°C 2009 | 16% |
| Apr 6 | 33°C | 26°C | 37°C 2003 | 24°C 2006 | 16% |
| Apr 7 | 33°C | 26°C | 37°C 2014 | 24°C 1997 | 17% |
| Apr 8 | 33°C | 26°C | 38°C 2004 | 24°C 1997 | 19% |
| Apr 9 | 33°C | 26°C | 37°C 2020 | 25°C 1997 | 20% |
| Apr 10 | 33°C | 26°C | 37°C 2020 | 24°C 2000 | 21% |
| Apr 11 | 33°C | 26°C | 38°C 2020 | 24°C 1997 | 23% |
| Apr 12 | 33°C | 26°C | 37°C 2007 | 24°C 2002 | 24% |
| Apr 13 | 33°C | 26°C | 36°C 2020 | 24°C 1996 | 26% |
| Apr 14 | 33°C | 26°C | 37°C 2005 | 24°C 1996 | 27% |
| Apr 15 | 33°C | 26°C | 38°C 2005 | 24°C 1994 | 27% |
| Apr 16 | 33°C | 26°C | 38°C 2005 | 25°C 1996 | 28% |
| Apr 17 | 33°C | 26°C | 37°C 2005 | 24°C 1996 | 30% |
| Apr 18 | 33°C | 26°C | 36°C 2001 | 25°C 1996 | 31% |
| Apr 19 | 33°C | 26°C | 37°C 2008 | 24°C 1996 | 32% |
| Apr 20 | 33°C | 26°C | 35°C 2006 | 24°C 1996 | 32% |
| Apr 21 | 33°C | 26°C | 36°C 2006 | 24°C 2011 | 34% |
| Apr 22 | 33°C | 26°C | 37°C 2016 | 24°C 2011 | 33% |
| Apr 23 | 33°C | 26°C | 37°C 1998 | 24°C 2011 | 32% |
| Apr 24 | 33°C | 26°C | 37°C 2010 | 24°C 2009 | 33% |
| Apr 25 | 33°C | 26°C | 36°C 2015 | 25°C 2002 | 33% |
| Apr 26 | 34°C | 26°C | 38°C 2015 | 25°C 2000 | 33% |
| Apr 27 | 34°C | 26°C | 39°C 2015 | 25°C 2001 | 33% |
| Apr 28 | 34°C | 26°C | 40°C 2015 | 25°C 2001 | 32% |
| Apr 29 | 34°C | 26°C | 40°C 2015 | 25°C 2011 | 32% |
| Apr 30 | 34°C | 26°C | 39°C 2015 | 25°C 2000 | 34% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- April 1
- sunrise 6:44 AM, sunset 6:58 PM
- April 30
- sunrise 6:29 AM, sunset 7:00 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.