Juan José Ríos Weather in December

NASA POWER reanalysis for the half-degree grid cell around Juan José Ríos, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 28°C on December 1 to 27°C on December 31, and lows from 15°C to 13°C. Normal precipitation for the month is 16 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: 27°C
Average low: 14°C
Precipitation: 16 mm
Reanalysis high: 35°CDec 14, 2016
Reanalysis low: 5°CDec 25, 2004
Daylight: 10 h 39 min to 10 h 33 min
Cloud cover: 39%
Humidity: 55%
Dew point: 8°C
Wind: 10.8 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	28°C	15°C	33°C 2003	10°C 1996	9%
Dec 2	28°C	15°C	31°C 2012	8°C 1991	9%
Dec 3	28°C	15°C	33°C 2014	9°C 1991	9%
Dec 4	28°C	15°C	34°C 2012	10°C 2016	9%
Dec 5	28°C	15°C	33°C 2014	8°C 2011	9%
Dec 6	28°C	15°C	34°C 2015	10°C 2011	8%
Dec 7	28°C	15°C	32°C 2014	10°C 1998	8%
Dec 8	28°C	15°C	33°C 2014	10°C 1998	8%
Dec 9	28°C	15°C	33°C 2020	11°C 1992	7%
Dec 10	27°C	14°C	33°C 1995	9°C 1998	7%
Dec 11	27°C	14°C	32°C 2017	7°C 1997	7%
Dec 12	27°C	14°C	34°C 1995	7°C 1997	6%
Dec 13	27°C	14°C	33°C 2016	5°C 1997	7%
Dec 14	27°C	14°C	35°C 2016	8°C 1997	6%
Dec 15	27°C	14°C	33°C 2016	7°C 1992	6%
Dec 16	27°C	14°C	31°C 2000	8°C 1992	7%
Dec 17	27°C	14°C	31°C 2003	9°C 2015	8%
Dec 18	27°C	13°C	32°C 2000	11°C 2015	7%
Dec 19	27°C	13°C	31°C 2000	9°C 1996	7%
Dec 20	26°C	13°C	31°C 2018	10°C 1996	6%
Dec 21	26°C	13°C	32°C 2005	9°C 2013	6%
Dec 22	26°C	13°C	32°C 2016	9°C 2011	6%
Dec 23	26°C	13°C	30°C 1992	8°C 2011	7%
Dec 24	26°C	13°C	31°C 2005	6°C 2011	7%
Dec 25	26°C	13°C	31°C 2006	5°C 2004	7%
Dec 26	26°C	13°C	30°C 2005	8°C 2002	7%
Dec 27	26°C	13°C	32°C 2017	6°C 2015	7%
Dec 28	26°C	13°C	31°C 1999	7°C 2015	6%
Dec 29	26°C	13°C	32°C 2016	6°C 2003	6%
Dec 30	27°C	13°C	31°C 1999	8°C 2018	6%
Dec 31	27°C	13°C	32°C 2017	6°C 2018	5%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-7).

December 1: sunrise 6:45 AM, sunset 5:24 PM
December 31: sunrise 7:02 AM, sunset 5:35 PM

Every day of December: sun and moon

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.