Castro Weather in April
Average highs run from 15°C on April 1 to 13°C on April 30, and lows from 8°C to 8°C. Normal precipitation for the month is 129 mm over about 18 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
- 14°C
- Average low
- 8°C
- Precipitation
- 129 mm
- Reanalysis high
- 20°CApr 1, 2017
- Reanalysis low
- 3°CApr 11, 2001
- Daylight
- 11 h 35 min to 10 h 16 min
- Cloud cover
- 71%
- Humidity
- 89%
- Dew point
- 9°C
- Wind
- 10.8 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 | 15°C | 8°C | 20°C 2017 | 4°C 1993 | 48% |
| Apr 2 | 15°C | 8°C | 19°C 1998 | 4°C 1993 | 49% |
| Apr 3 | 15°C | 8°C | 19°C 2008 | 4°C 1996 | 50% |
| Apr 4 | 15°C | 8°C | 18°C 1998 | 5°C 1993 | 51% |
| Apr 5 | 14°C | 8°C | 19°C 2015 | 5°C 2015 | 51% |
| Apr 6 | 14°C | 8°C | 19°C 2014 | 5°C 1996 | 52% |
| Apr 7 | 14°C | 8°C | 19°C 2001 | 6°C 2000 | 52% |
| Apr 8 | 14°C | 8°C | 19°C 2020 | 5°C 2000 | 53% |
| Apr 9 | 14°C | 8°C | 19°C 2011 | 4°C 2000 | 55% |
| Apr 10 | 14°C | 8°C | 18°C 2009 | 4°C 2008 | 57% |
| Apr 11 | 14°C | 8°C | 19°C 2009 | 3°C 2001 | 58% |
| Apr 12 | 14°C | 8°C | 18°C 1995 | 4°C 2013 | 58% |
| Apr 13 | 14°C | 8°C | 19°C 2017 | 4°C 2008 | 60% |
| Apr 14 | 14°C | 8°C | 18°C 2017 | 5°C 2001 | 61% |
| Apr 15 | 13°C | 8°C | 20°C 2017 | 4°C 2006 | 60% |
| Apr 16 | 13°C | 8°C | 19°C 2017 | 4°C 2006 | 60% |
| Apr 17 | 13°C | 8°C | 18°C 2017 | 4°C 2016 | 59% |
| Apr 18 | 13°C | 8°C | 17°C 2013 | 4°C 2016 | 59% |
| Apr 19 | 13°C | 8°C | 18°C 2013 | 4°C 2014 | 59% |
| Apr 20 | 13°C | 8°C | 17°C 2009 | 4°C 1994 | 60% |
| Apr 21 | 13°C | 8°C | 17°C 1995 | 5°C 1993 | 60% |
| Apr 22 | 13°C | 8°C | 15°C 1997 | 5°C 1993 | 59% |
| Apr 23 | 13°C | 8°C | 17°C 2014 | 4°C 1998 | 60% |
| Apr 24 | 13°C | 8°C | 16°C 2014 | 3°C 2005 | 60% |
| Apr 25 | 13°C | 8°C | 16°C 2019 | 4°C 2016 | 60% |
| Apr 26 | 13°C | 8°C | 16°C 1998 | 4°C 2016 | 60% |
| Apr 27 | 13°C | 7°C | 17°C 2006 | 4°C 2001 | 60% |
| Apr 28 | 13°C | 7°C | 16°C 2009 | 4°C 2001 | 59% |
| Apr 29 | 13°C | 8°C | 18°C 2009 | 4°C 2018 | 58% |
| Apr 30 | 13°C | 8°C | 18°C 2009 | 5°C 1991 | 58% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- April 1
- sunrise 8:11 AM, sunset 7:46 PM
- April 30
- sunrise 7:44 AM, sunset 6:00 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.