San Juan Weather in April
Average highs run from 26°C on April 1 to 26°C on April 30, and lows from 17°C to 18°C. Normal precipitation for the month is 96 mm over about 15 wet days.
April day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 26°C
- Average low
- 18°C
- Precipitation
- 96 mm
- Record high
- 37°CApr 3, 2001
- Record low
- 12°CApr 11, 1980
- Daylight
- 12 h 14 min to 12 h 29 min
- Cloud cover
- 70%
- Humidity
- 82%
- Dew point
- 17°C
- Wind
- 5.0 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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Apr 1 | 26°C | 17°C | 33°C 2016 | 16°C 1978 | 32% |
| Apr 2 | 26°C | 17°C | 33°C 2024 | 15°C 1980 | 33% |
| Apr 3 | 26°C | 17°C | 37°C 2001 | 15°C 2011 | 34% |
| Apr 4 | 26°C | 17°C | 33°C 2017 | 16°C 1984 | 35% |
| Apr 5 | 26°C | 17°C | 33°C 2020 | 16°C 1984 | 36% |
| Apr 6 | 26°C | 17°C | 34°C 2020 | 14°C 1984 | 37% |
| Apr 7 | 26°C | 17°C | 34°C 2020 | 15°C 1985 | 40% |
| Apr 8 | 26°C | 17°C | 32°C 2004 | 16°C 1984 | 41% |
| Apr 9 | 26°C | 17°C | 34°C 2020 | 16°C 2006 | 42% |
| Apr 10 | 26°C | 17°C | 34°C 1998 | 13°C 1980 | 43% |
| Apr 11 | 26°C | 17°C | 34°C 2004 | 12°C 1980 | 45% |
| Apr 12 | 26°C | 17°C | 33°C 2020 | 15°C 1989 | 46% |
| Apr 13 | 26°C | 17°C | 33°C 2016 | 12°C 1978 | 48% |
| Apr 14 | 26°C | 17°C | 33°C 2004 | 16°C 2012 | 49% |
| Apr 15 | 26°C | 18°C | 33°C 1983 | 16°C 1985 | 50% |
| Apr 16 | 26°C | 18°C | 33°C 1983 | 16°C 2009 | 50% |
| Apr 17 | 26°C | 18°C | 34°C 2024 | 16°C 1980 | 50% |
| Apr 18 | 26°C | 18°C | 34°C 2024 | 15°C 1978 | 49% |
| Apr 19 | 26°C | 18°C | 34°C 2024 | 15°C 1978 | 51% |
| Apr 20 | 26°C | 18°C | 33°C 1998 | 16°C 2007 | 53% |
| Apr 21 | 26°C | 18°C | 33°C 2003 | 15°C 1988 | 54% |
| Apr 22 | 26°C | 18°C | 33°C 2024 | 15°C 1991 | 54% |
| Apr 23 | 26°C | 18°C | 34°C 2024 | 15°C 1991 | 55% |
| Apr 24 | 26°C | 18°C | 33°C 2006 | 15°C 1978 | 56% |
| Apr 25 | 26°C | 18°C | 36°C 2014 | 15°C 1984 | 58% |
| Apr 26 | 26°C | 18°C | 32°C 2014 | 15°C 1984 | 58% |
| Apr 27 | 26°C | 18°C | 32°C 2015 | 16°C 1978 | 59% |
| Apr 28 | 26°C | 18°C | 33°C 2019 | 15°C 2013 | 58% |
| Apr 29 | 26°C | 18°C | 34°C 2015 | 16°C 1984 | 60% |
| Apr 30 | 26°C | 18°C | 34°C 2015 | 16°C 1984 | 61% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CST).
- April 1
- sunrise 5:33 AM, sunset 5:47 PM
- April 30
- sunrise 5:19 AM, sunset 5:48 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CSM00078762, every year on file, quality-flagged values removed. 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.