Trelew Weather in December
Average highs run from 26°C on December 1 to 29°C on December 31, and lows from 11°C to 14°C. Normal precipitation for the month is 12 mm over about 3 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
- 28°C
- Average low
- 13°C
- Precipitation
- 12 mm
- Reanalysis high
- 40°CDec 31, 2011
- Reanalysis low
- 4°CDec 6, 2005
- Daylight
- 15 h 09 min to 15 h 20 min
- Cloud cover
- 49%
- Humidity
- 37%
- Dew point
- 4°C
- Wind
- 24.5 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 | 26°C | 11°C | 32°C 2016 | 6°C 2018 | 8% |
| Dec 2 | 27°C | 12°C | 34°C 2011 | 5°C 2001 | 8% |
| Dec 3 | 27°C | 12°C | 36°C 2016 | 7°C 2009 | 8% |
| Dec 4 | 27°C | 12°C | 33°C 2002 | 5°C 2020 | 8% |
| Dec 5 | 27°C | 12°C | 34°C 2017 | 6°C 2013 | 7% |
| Dec 6 | 27°C | 12°C | 37°C 2008 | 4°C 2005 | 7% |
| Dec 7 | 27°C | 12°C | 37°C 2018 | 7°C 2001 | 7% |
| Dec 8 | 27°C | 12°C | 36°C 2018 | 4°C 2001 | 7% |
| Dec 9 | 27°C | 12°C | 34°C 1994 | 8°C 2001 | 7% |
| Dec 10 | 27°C | 12°C | 34°C 1994 | 8°C 2010 | 7% |
| Dec 11 | 27°C | 12°C | 38°C 2017 | 6°C 2010 | 6% |
| Dec 12 | 27°C | 12°C | 34°C 1999 | 6°C 1991 | 6% |
| Dec 13 | 28°C | 12°C | 37°C 2002 | 8°C 2016 | 6% |
| Dec 14 | 28°C | 13°C | 38°C 2008 | 6°C 2016 | 6% |
| Dec 15 | 28°C | 13°C | 35°C 2016 | 8°C 2020 | 5% |
| Dec 16 | 28°C | 13°C | 36°C 2009 | 6°C 1991 | 6% |
| Dec 17 | 28°C | 13°C | 36°C 2011 | 7°C 1991 | 5% |
| Dec 18 | 28°C | 13°C | 34°C 1993 | 7°C 2015 | 5% |
| Dec 19 | 28°C | 13°C | 35°C 1995 | 9°C 2015 | 6% |
| Dec 20 | 28°C | 13°C | 35°C 1995 | 7°C 1992 | 6% |
| Dec 21 | 29°C | 13°C | 39°C 1993 | 7°C 2014 | 6% |
| Dec 22 | 29°C | 13°C | 38°C 1995 | 7°C 2014 | 5% |
| Dec 23 | 29°C | 13°C | 34°C 2001 | 7°C 2011 | 6% |
| Dec 24 | 29°C | 13°C | 36°C 2018 | 8°C 1991 | 7% |
| Dec 25 | 29°C | 14°C | 39°C 1995 | 6°C 1991 | 7% |
| Dec 26 | 29°C | 14°C | 37°C 2007 | 9°C 2012 | 8% |
| Dec 27 | 29°C | 14°C | 39°C 1995 | 9°C 2002 | 8% |
| Dec 28 | 29°C | 14°C | 36°C 2015 | 9°C 2012 | 8% |
| Dec 29 | 29°C | 14°C | 38°C 2010 | 9°C 1992 | 8% |
| Dec 30 | 29°C | 14°C | 36°C 2011 | 8°C 1997 | 8% |
| Dec 31 | 29°C | 14°C | 40°C 2011 | 6°C 1992 | 8% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT-3).
- December 1
- sunrise 5:36 AM, sunset 8:45 PM
- December 31
- sunrise 5:44 AM, sunset 9:04 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.