San José Weather in April
Average highs run from 35°C on April 1 to 34°C on April 30, and lows from 23°C to 24°C. Normal precipitation for the month is 29 mm over about 5 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
- 34°C
- Average low
- 24°C
- Precipitation
- 29 mm
- Reanalysis high
- 38°CApr 6, 1998
- Reanalysis low
- 21°CApr 4, 2000
- Daylight
- 12 h 14 min to 12 h 31 min
- Cloud cover
- 60%
- Humidity
- 64%
- Dew point
- 20°C
- Wind
- 9.4 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 | 35°C | 23°C | 36°C 1998 | 22°C 1997 | 7% |
| Apr 2 | 35°C | 23°C | 36°C 2010 | 22°C 2018 | 7% |
| Apr 3 | 35°C | 23°C | 36°C 1998 | 21°C 2020 | 8% |
| Apr 4 | 35°C | 23°C | 37°C 1998 | 21°C 2000 | 8% |
| Apr 5 | 35°C | 23°C | 38°C 1998 | 22°C 1997 | 8% |
| Apr 6 | 35°C | 23°C | 38°C 1998 | 21°C 1997 | 9% |
| Apr 7 | 35°C | 23°C | 37°C 1998 | 22°C 2000 | 10% |
| Apr 8 | 35°C | 24°C | 36°C 1998 | 22°C 1999 | 11% |
| Apr 9 | 34°C | 24°C | 37°C 2004 | 22°C 2009 | 12% |
| Apr 10 | 34°C | 24°C | 37°C 2004 | 21°C 1999 | 13% |
| Apr 11 | 34°C | 24°C | 36°C 1995 | 22°C 1997 | 13% |
| Apr 12 | 34°C | 24°C | 37°C 2004 | 22°C 2012 | 14% |
| Apr 13 | 34°C | 24°C | 37°C 2019 | 22°C 2011 | 15% |
| Apr 14 | 34°C | 24°C | 36°C 1993 | 22°C 2011 | 15% |
| Apr 15 | 35°C | 24°C | 36°C 1993 | 21°C 2011 | 16% |
| Apr 16 | 34°C | 24°C | 36°C 1993 | 22°C 1996 | 16% |
| Apr 17 | 34°C | 24°C | 36°C 1992 | 22°C 2006 | 18% |
| Apr 18 | 35°C | 24°C | 36°C 1992 | 22°C 2007 | 18% |
| Apr 19 | 35°C | 24°C | 37°C 2010 | 22°C 2020 | 19% |
| Apr 20 | 34°C | 24°C | 37°C 1992 | 22°C 1996 | 22% |
| Apr 21 | 34°C | 24°C | 38°C 2010 | 22°C 2011 | 23% |
| Apr 22 | 34°C | 24°C | 38°C 2010 | 22°C 1991 | 24% |
| Apr 23 | 34°C | 24°C | 36°C 2010 | 22°C 2013 | 24% |
| Apr 24 | 34°C | 24°C | 37°C 2005 | 23°C 2008 | 25% |
| Apr 25 | 34°C | 24°C | 37°C 2010 | 22°C 2008 | 27% |
| Apr 26 | 34°C | 24°C | 37°C 2019 | 22°C 2008 | 28% |
| Apr 27 | 34°C | 24°C | 36°C 2019 | 22°C 2008 | 28% |
| Apr 28 | 34°C | 24°C | 37°C 2003 | 22°C 2008 | 28% |
| Apr 29 | 34°C | 24°C | 37°C 2003 | 23°C 2013 | 30% |
| Apr 30 | 34°C | 24°C | 37°C 2016 | 23°C 2020 | 31% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- April 1
- sunrise 5:37 AM, sunset 5:51 PM
- April 30
- sunrise 5:22 AM, sunset 5:53 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 2026-09-26. Sun and moon: computed with the NOAA solar equations and Meeus.