Santa María Weather in December
Average highs run from 19°C on December 1 to 19°C on December 31, and lows from 4°C to 6°C. Normal precipitation for the month is 146 mm over about 12 wet days.
December day by day
The normal high and low for each date, in °C.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
December at a glance
- Average high
- 19°C
- Average low
- 5°C
- Precipitation
- 146 mm
- Reanalysis high
- 27°CDec 26, 1997
- Reanalysis low
- -5°CDec 4, 2001
- Daylight
- 13 h 41 min to 13 h 48 min
- Cloud cover
- 63%
- Humidity
- 66%
- Dew point
- 4°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 |
|---|---|---|---|---|---|
| Dec 1 | 19°C | 4°C | 24°C 1994 | -1°C 2002 | 43% |
| Dec 2 | 19°C | 4°C | 24°C 1994 | -2°C 2014 | 43% |
| Dec 3 | 19°C | 4°C | 25°C 1993 | -3°C 2001 | 44% |
| Dec 4 | 19°C | 4°C | 24°C 1993 | -5°C 2001 | 44% |
| Dec 5 | 19°C | 4°C | 24°C 2012 | -1°C 1992 | 44% |
| Dec 6 | 19°C | 4°C | 26°C 2012 | 1°C 2005 | 43% |
| Dec 7 | 19°C | 4°C | 22°C 2010 | -1°C 2010 | 42% |
| Dec 8 | 19°C | 4°C | 24°C 2018 | 0°C 2003 | 42% |
| Dec 9 | 19°C | 4°C | 24°C 2012 | -1°C 2002 | 42% |
| Dec 10 | 19°C | 4°C | 24°C 2010 | -1°C 1991 | 41% |
| Dec 11 | 19°C | 5°C | 25°C 2010 | 0°C 2016 | 41% |
| Dec 12 | 19°C | 5°C | 24°C 1997 | -2°C 1991 | 41% |
| Dec 13 | 19°C | 5°C | 26°C 2018 | -4°C 2010 | 41% |
| Dec 14 | 19°C | 5°C | 23°C 2019 | -1°C 1991 | 40% |
| Dec 15 | 19°C | 5°C | 22°C 2017 | -3°C 1991 | 39% |
| Dec 16 | 19°C | 5°C | 25°C 2015 | 0°C 1992 | 40% |
| Dec 17 | 19°C | 5°C | 23°C 2015 | 1°C 2000 | 41% |
| Dec 18 | 19°C | 5°C | 24°C 2002 | 0°C 1999 | 41% |
| Dec 19 | 19°C | 5°C | 25°C 2012 | 2°C 2015 | 41% |
| Dec 20 | 19°C | 5°C | 25°C 1995 | 2°C 2012 | 42% |
| Dec 21 | 19°C | 6°C | 25°C 1991 | 0°C 2014 | 45% |
| Dec 22 | 19°C | 6°C | 24°C 1992 | -2°C 1998 | 46% |
| Dec 23 | 19°C | 6°C | 24°C 2012 | 0°C 2014 | 47% |
| Dec 24 | 19°C | 6°C | 25°C 2012 | 2°C 2014 | 49% |
| Dec 25 | 19°C | 6°C | 24°C 1997 | 3°C 2004 | 51% |
| Dec 26 | 19°C | 6°C | 27°C 1997 | 1°C 2008 | 52% |
| Dec 27 | 19°C | 6°C | 26°C 1997 | 2°C 2007 | 51% |
| Dec 28 | 19°C | 6°C | 23°C 1997 | 2°C 2007 | 51% |
| Dec 29 | 19°C | 6°C | 24°C 1997 | 3°C 2003 | 52% |
| Dec 30 | 19°C | 6°C | 22°C 2017 | 3°C 2004 | 52% |
| Dec 31 | 19°C | 6°C | 24°C 1994 | 3°C 2010 | 53% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- December 1
- sunrise 6:23 AM, sunset 8:04 PM
- December 31
- sunrise 6:33 AM, sunset 8:21 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.