Arouca Weather in December
Average highs run from 12°C on December 1 to 11°C on December 31, and lows from 4°C to 4°C. Normal precipitation for the month is 133 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
- 11°C
- Average low
- 4°C
- Precipitation
- 133 mm
- Reanalysis high
- 19°CDec 10, 1994
- Reanalysis low
- -5°CDec 25, 2001
- Daylight
- 9 h 28 min to 9 h 17 min
- Cloud cover
- 65%
- Humidity
- 90%
- Dew point
- 5°C
- Wind
- 7.9 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 | 12°C | 4°C | 17°C 1994 | -2°C 2017 | 44% |
| Dec 2 | 12°C | 4°C | 16°C 1992 | -3°C 2017 | 44% |
| Dec 3 | 12°C | 4°C | 16°C 2015 | -2°C 2010 | 42% |
| Dec 4 | 12°C | 4°C | 17°C 2007 | -3°C 2010 | 41% |
| Dec 5 | 12°C | 4°C | 17°C 2015 | -2°C 1998 | 41% |
| Dec 6 | 12°C | 4°C | 16°C 2018 | -3°C 1997 | 41% |
| Dec 7 | 12°C | 4°C | 17°C 2016 | -1°C 2013 | 41% |
| Dec 8 | 12°C | 4°C | 15°C 2016 | -2°C 1998 | 40% |
| Dec 9 | 12°C | 4°C | 16°C 2018 | -2°C 2013 | 40% |
| Dec 10 | 12°C | 4°C | 19°C 1994 | -1°C 2006 | 41% |
| Dec 11 | 12°C | 4°C | 16°C 1998 | -2°C 2005 | 41% |
| Dec 12 | 12°C | 4°C | 16°C 2016 | 0°C 2007 | 42% |
| Dec 13 | 12°C | 4°C | 17°C 1994 | -2°C 2007 | 43% |
| Dec 14 | 11°C | 4°C | 17°C 1998 | -3°C 2009 | 42% |
| Dec 15 | 11°C | 4°C | 17°C 1998 | -4°C 2009 | 42% |
| Dec 16 | 11°C | 4°C | 15°C 1998 | -3°C 2010 | 41% |
| Dec 17 | 11°C | 4°C | 16°C 1997 | -4°C 2010 | 40% |
| Dec 18 | 11°C | 4°C | 16°C 2015 | -3°C 2001 | 40% |
| Dec 19 | 11°C | 4°C | 15°C 2002 | -3°C 2009 | 40% |
| Dec 20 | 11°C | 4°C | 13°C 2017 | -4°C 2009 | 41% |
| Dec 21 | 11°C | 4°C | 14°C 2011 | -2°C 2006 | 41% |
| Dec 22 | 11°C | 4°C | 14°C 2017 | -2°C 2001 | 42% |
| Dec 23 | 11°C | 4°C | 15°C 2008 | -1°C 1994 | 43% |
| Dec 24 | 11°C | 4°C | 17°C 2019 | -4°C 2001 | 44% |
| Dec 25 | 11°C | 4°C | 14°C 1995 | -5°C 2001 | 45% |
| Dec 26 | 11°C | 4°C | 15°C 2018 | -3°C 2010 | 46% |
| Dec 27 | 11°C | 4°C | 14°C 2015 | -3°C 2020 | 45% |
| Dec 28 | 11°C | 4°C | 15°C 2009 | -2°C 2011 | 45% |
| Dec 29 | 11°C | 4°C | 16°C 2019 | -2°C 2014 | 46% |
| Dec 30 | 11°C | 4°C | 15°C 2019 | -3°C 2014 | 46% |
| Dec 31 | 11°C | 4°C | 14°C 1995 | -3°C 1999 | 47% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+0).
- December 1
- sunrise 7:38 AM, sunset 5:06 PM
- December 31
- sunrise 7:58 AM, sunset 5:15 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.