Castro Weather in April
Average highs run from 26°C on April 1 to 23°C on April 30, and lows from 15°C to 13°C. Normal precipitation for the month is 87 mm over about 12 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
- 25°C
- Average low
- 14°C
- Precipitation
- 87 mm
- Reanalysis high
- 31°CApr 6, 2020
- Reanalysis low
- 0°CApr 18, 1999
- Daylight
- 11 h 50 min to 11 h 11 min
- Cloud cover
- 59%
- Humidity
- 81%
- Dew point
- 15°C
- Wind
- 5.4 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 | 26°C | 15°C | 31°C 2020 | 12°C 2017 | 41% |
| Apr 2 | 26°C | 15°C | 31°C 2020 | 10°C 1995 | 42% |
| Apr 3 | 26°C | 15°C | 30°C 2007 | 10°C 1998 | 41% |
| Apr 4 | 26°C | 15°C | 29°C 2007 | 9°C 2020 | 40% |
| Apr 5 | 26°C | 15°C | 31°C 2020 | 6°C 1997 | 39% |
| Apr 6 | 26°C | 15°C | 31°C 2020 | 6°C 1997 | 39% |
| Apr 7 | 26°C | 15°C | 30°C 2005 | 10°C 2010 | 39% |
| Apr 8 | 26°C | 15°C | 30°C 2016 | 10°C 1994 | 37% |
| Apr 9 | 26°C | 15°C | 29°C 2005 | 9°C 2010 | 37% |
| Apr 10 | 26°C | 15°C | 30°C 2005 | 9°C 1993 | 36% |
| Apr 11 | 25°C | 15°C | 30°C 2005 | 9°C 2003 | 36% |
| Apr 12 | 25°C | 15°C | 31°C 2005 | 4°C 2003 | 38% |
| Apr 13 | 25°C | 14°C | 29°C 2006 | 6°C 2003 | 38% |
| Apr 14 | 25°C | 14°C | 30°C 2005 | 10°C 1992 | 39% |
| Apr 15 | 25°C | 14°C | 30°C 2005 | 6°C 2020 | 38% |
| Apr 16 | 25°C | 14°C | 30°C 2005 | 6°C 2020 | 38% |
| Apr 17 | 25°C | 14°C | 29°C 2005 | 3°C 1999 | 37% |
| Apr 18 | 25°C | 14°C | 29°C 2005 | 0°C 1999 | 38% |
| Apr 19 | 25°C | 14°C | 28°C 2009 | 4°C 1999 | 38% |
| Apr 20 | 24°C | 14°C | 29°C 2007 | 8°C 1991 | 37% |
| Apr 21 | 24°C | 14°C | 29°C 2007 | 8°C 1991 | 36% |
| Apr 22 | 24°C | 14°C | 29°C 2007 | 9°C 2000 | 35% |
| Apr 23 | 24°C | 13°C | 29°C 2007 | 7°C 1995 | 35% |
| Apr 24 | 24°C | 13°C | 29°C 2006 | 7°C 1995 | 34% |
| Apr 25 | 24°C | 13°C | 30°C 2020 | 10°C 1995 | 33% |
| Apr 26 | 24°C | 13°C | 30°C 2020 | 8°C 1997 | 33% |
| Apr 27 | 24°C | 13°C | 28°C 2003 | 6°C 2016 | 32% |
| Apr 28 | 24°C | 13°C | 28°C 1994 | 4°C 2016 | 30% |
| Apr 29 | 24°C | 13°C | 28°C 2020 | 6°C 2016 | 29% |
| Apr 30 | 23°C | 13°C | 28°C 2020 | 5°C 2016 | 28% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- April 1
- sunrise 6:29 AM, sunset 6:19 PM
- April 30
- sunrise 6:42 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.