Castro Weather in March
Average highs run from 17°C on March 1 to 15°C on March 31, and lows from 10°C to 9°C. Normal precipitation for the month is 102 mm over about 16 wet days.
March day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
March at a glance
- Average high
- 16°C
- Average low
- 9°C
- Precipitation
- 102 mm
- Reanalysis high
- 23°CMar 10, 2009
- Reanalysis low
- 3°CMar 31, 2014
- Daylight
- 13 h 04 min to 11 h 37 min
- Cloud cover
- 66%
- Humidity
- 87%
- Dew point
- 10°C
- Wind
- 10.1 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 |
|---|---|---|---|---|---|
| Mar 1 | 17°C | 10°C | 23°C 2010 | 7°C 2009 | 41% |
| Mar 2 | 17°C | 10°C | 19°C 1997 | 6°C 2009 | 43% |
| Mar 3 | 17°C | 10°C | 22°C 2013 | 5°C 2009 | 44% |
| Mar 4 | 16°C | 10°C | 20°C 1997 | 6°C 2002 | 44% |
| Mar 5 | 16°C | 10°C | 21°C 2003 | 6°C 1995 | 45% |
| Mar 6 | 16°C | 10°C | 22°C 2010 | 6°C 1991 | 45% |
| Mar 7 | 16°C | 10°C | 21°C 2018 | 5°C 1991 | 45% |
| Mar 8 | 16°C | 10°C | 21°C 2009 | 6°C 1996 | 45% |
| Mar 9 | 16°C | 10°C | 23°C 2009 | 5°C 1996 | 46% |
| Mar 10 | 16°C | 10°C | 23°C 2009 | 5°C 2001 | 46% |
| Mar 11 | 16°C | 10°C | 22°C 2004 | 6°C 2001 | 46% |
| Mar 12 | 16°C | 9°C | 20°C 1997 | 7°C 2011 | 48% |
| Mar 13 | 16°C | 9°C | 22°C 1997 | 6°C 1996 | 48% |
| Mar 14 | 16°C | 9°C | 21°C 1997 | 6°C 1996 | 47% |
| Mar 15 | 16°C | 9°C | 22°C 1998 | 7°C 2009 | 47% |
| Mar 16 | 16°C | 9°C | 22°C 1998 | 6°C 2003 | 47% |
| Mar 17 | 16°C | 9°C | 21°C 1997 | 7°C 2016 | 47% |
| Mar 18 | 16°C | 9°C | 23°C 1997 | 7°C 2001 | 46% |
| Mar 19 | 16°C | 9°C | 18°C 2012 | 5°C 2018 | 46% |
| Mar 20 | 16°C | 9°C | 20°C 1994 | 4°C 2018 | 47% |
| Mar 21 | 16°C | 9°C | 19°C 2004 | 4°C 1991 | 46% |
| Mar 22 | 16°C | 9°C | 19°C 1993 | 6°C 1992 | 47% |
| Mar 23 | 15°C | 9°C | 20°C 2015 | 7°C 2015 | 47% |
| Mar 24 | 15°C | 9°C | 21°C 2015 | 5°C 2018 | 46% |
| Mar 25 | 15°C | 9°C | 19°C 2020 | 5°C 2002 | 46% |
| Mar 26 | 15°C | 9°C | 21°C 1991 | 4°C 2002 | 45% |
| Mar 27 | 15°C | 9°C | 20°C 1991 | 6°C 2000 | 46% |
| Mar 28 | 15°C | 9°C | 18°C 2013 | 5°C 1994 | 46% |
| Mar 29 | 15°C | 9°C | 19°C 2008 | 5°C 2014 | 47% |
| Mar 30 | 15°C | 9°C | 19°C 2019 | 4°C 2014 | 47% |
| Mar 31 | 15°C | 9°C | 19°C 2002 | 3°C 2014 | 48% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- March 1
- sunrise 7:35 AM, sunset 8:39 PM
- March 31
- sunrise 8:10 AM, sunset 7:47 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.