Castro Weather in August
Average highs run from 9°C on August 1 to 10°C on August 31, and lows from 5°C to 5°C. Normal precipitation for the month is 171 mm over about 22 wet days.
August day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
August at a glance
- Average high
- 10°C
- Average low
- 5°C
- Precipitation
- 171 mm
- Reanalysis high
- 15°CAug 5, 2012
- Reanalysis low
- -1°CAug 24, 2013
- Daylight
- 9 h 53 min to 11 h 07 min
- Cloud cover
- 78%
- Humidity
- 90%
- Dew point
- 6°C
- Wind
- 13.0 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 | Reanalysis high | Reanalysis low | Chance wet |
|---|---|---|---|---|---|
| Aug 1 | 9°C | 5°C | 13°C 2014 | 0°C 2010 | 64% |
| Aug 2 | 9°C | 5°C | 13°C 1999 | 0°C 2010 | 64% |
| Aug 3 | 9°C | 5°C | 12°C 1998 | 1°C 2010 | 65% |
| Aug 4 | 9°C | 5°C | 12°C 1998 | 1°C 2010 | 66% |
| Aug 5 | 9°C | 5°C | 15°C 2012 | 3°C 2002 | 68% |
| Aug 6 | 9°C | 5°C | 12°C 2012 | 1°C 2005 | 68% |
| Aug 7 | 9°C | 5°C | 11°C 2004 | 0°C 2005 | 69% |
| Aug 8 | 10°C | 5°C | 13°C 1997 | 0°C 1991 | 70% |
| Aug 9 | 10°C | 5°C | 13°C 1997 | 0°C 1991 | 71% |
| Aug 10 | 10°C | 5°C | 14°C 2004 | 2°C 1991 | 72% |
| Aug 11 | 10°C | 5°C | 12°C 2000 | 2°C 1991 | 72% |
| Aug 12 | 10°C | 5°C | 13°C 2000 | 2°C 2013 | 70% |
| Aug 13 | 10°C | 5°C | 13°C 1997 | 1°C 2010 | 69% |
| Aug 14 | 10°C | 5°C | 12°C 2019 | 0°C 2010 | 67% |
| Aug 15 | 10°C | 5°C | 12°C 2004 | 2°C 2007 | 68% |
| Aug 16 | 10°C | 5°C | 13°C 2003 | 1°C 2007 | 67% |
| Aug 17 | 10°C | 5°C | 13°C 2002 | 2°C 2007 | 67% |
| Aug 18 | 10°C | 5°C | 12°C 2014 | 1°C 2015 | 67% |
| Aug 19 | 10°C | 5°C | 12°C 2006 | 1°C 2020 | 66% |
| Aug 20 | 10°C | 5°C | 15°C 1993 | 1°C 1991 | 67% |
| Aug 21 | 10°C | 5°C | 14°C 1993 | 1°C 1991 | 67% |
| Aug 22 | 10°C | 5°C | 14°C 1993 | 0°C 2013 | 67% |
| Aug 23 | 10°C | 5°C | 14°C 2000 | -1°C 2013 | 67% |
| Aug 24 | 10°C | 5°C | 12°C 2015 | -1°C 2013 | 65% |
| Aug 25 | 10°C | 5°C | 13°C 2020 | 1°C 2013 | 63% |
| Aug 26 | 10°C | 5°C | 13°C 2003 | 2°C 2012 | 64% |
| Aug 27 | 10°C | 5°C | 13°C 2002 | 3°C 2016 | 65% |
| Aug 28 | 10°C | 5°C | 13°C 1997 | 2°C 1993 | 65% |
| Aug 29 | 10°C | 5°C | 14°C 2006 | 2°C 1991 | 66% |
| Aug 30 | 10°C | 5°C | 13°C 2004 | 2°C 2010 | 66% |
| Aug 31 | 10°C | 5°C | 14°C 2014 | 1°C 2010 | 67% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-4).
- August 1
- sunrise 8:05 AM, sunset 5:58 PM
- August 31
- sunrise 7:22 AM, sunset 6:29 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.