Registro Weather in December

NASA POWER reanalysis for the half-degree grid cell around Registro, 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 29°C on December 31, and lows from 19°C to 20°C. Normal precipitation for the month is 174 mm over about 22 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: 19°C
Precipitation: 174 mm
Reanalysis high: 38°CDec 11, 2012
Reanalysis low: 13°CDec 15, 1995
Daylight: 13 h 33 min to 13 h 38 min
Cloud cover: 74%
Humidity: 83%
Dew point: 20°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	28°C	19°C	33°C 2014	15°C 2000	67%
Dec 2	28°C	19°C	35°C 2014	15°C 2000	68%
Dec 3	28°C	19°C	35°C 2014	15°C 1992	69%
Dec 4	28°C	19°C	34°C 1994	14°C 2005	69%
Dec 5	28°C	19°C	34°C 2012	15°C 2008	68%
Dec 6	28°C	19°C	34°C 2012	15°C 1992	69%
Dec 7	28°C	19°C	37°C 2012	16°C 2005	70%
Dec 8	28°C	19°C	33°C 2014	15°C 2018	70%
Dec 9	28°C	19°C	34°C 2008	15°C 2018	70%
Dec 10	28°C	19°C	35°C 2012	16°C 1995	71%
Dec 11	28°C	19°C	38°C 2012	16°C 2005	70%
Dec 12	28°C	19°C	37°C 2018	16°C 2005	71%
Dec 13	28°C	19°C	35°C 2018	16°C 2005	70%
Dec 14	28°C	19°C	34°C 2018	15°C 1992	72%
Dec 15	29°C	19°C	37°C 2018	13°C 1995	72%
Dec 16	28°C	19°C	35°C 2003	15°C 1995	72%
Dec 17	29°C	20°C	36°C 2017	16°C 2000	73%
Dec 18	29°C	20°C	35°C 2006	15°C 2000	74%
Dec 19	29°C	20°C	34°C 2006	14°C 2000	74%
Dec 20	29°C	20°C	36°C 2020	16°C 2007	73%
Dec 21	29°C	20°C	36°C 2011	17°C 1993	73%
Dec 22	29°C	20°C	37°C 2011	16°C 1993	73%
Dec 23	29°C	20°C	37°C 2011	16°C 1993	74%
Dec 24	29°C	20°C	36°C 2011	17°C 2003	74%
Dec 25	29°C	20°C	35°C 2012	15°C 2003	75%
Dec 26	29°C	20°C	36°C 2016	17°C 2001	77%
Dec 27	29°C	20°C	37°C 2016	16°C 1992	78%
Dec 28	29°C	20°C	34°C 2014	16°C 1992	79%
Dec 29	29°C	20°C	33°C 2007	16°C 1991	78%
Dec 30	29°C	20°C	35°C 2002	17°C 1993	78%
Dec 31	29°C	20°C	34°C 1992	16°C 1993	77%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

December 1: sunrise 5:14 AM, sunset 6:47 PM
December 31: sunrise 5:25 AM, sunset 7:03 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.