Barro Weather in December

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

Average highs run from 37°C on December 1 to 35°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 53 mm over about 9 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: 36°C
Average low: 23°C
Precipitation: 53 mm
Reanalysis high: 40°CDec 25, 2019
Reanalysis low: 19°CDec 21, 2000
Daylight: 12 h 31 min to 12 h 32 min
Cloud cover: 52%
Humidity: 50%
Dew point: 16°C
Wind: 15.5 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	37°C	23°C	39°C 2015	20°C 1995	17%
Dec 2	37°C	23°C	39°C 2004	21°C 1994	18%
Dec 3	37°C	23°C	39°C 2019	21°C 1994	17%
Dec 4	37°C	23°C	39°C 2019	21°C 1996	17%
Dec 5	37°C	23°C	39°C 1998	21°C 1996	17%
Dec 6	37°C	23°C	39°C 2008	22°C 1993	18%
Dec 7	37°C	23°C	39°C 1997	21°C 2006	19%
Dec 8	37°C	23°C	40°C 2003	21°C 1993	20%
Dec 9	37°C	23°C	40°C 1994	21°C 1993	21%
Dec 10	37°C	23°C	39°C 2016	19°C 2005	23%
Dec 11	37°C	23°C	39°C 2015	21°C 2018	24%
Dec 12	37°C	23°C	39°C 2015	20°C 2018	25%
Dec 13	36°C	23°C	39°C 1998	19°C 2018	26%
Dec 14	36°C	23°C	39°C 2015	19°C 2005	26%
Dec 15	36°C	23°C	39°C 2015	20°C 2005	27%
Dec 16	36°C	23°C	39°C 2002	20°C 2000	28%
Dec 17	36°C	23°C	39°C 1991	20°C 2005	28%
Dec 18	36°C	23°C	38°C 1995	20°C 2000	29%
Dec 19	36°C	23°C	39°C 1994	20°C 2005	29%
Dec 20	36°C	23°C	38°C 2004	20°C 2010	29%
Dec 21	36°C	23°C	39°C 2002	19°C 2000	30%
Dec 22	36°C	23°C	39°C 2019	21°C 2005	31%
Dec 23	36°C	23°C	39°C 2019	20°C 2010	32%
Dec 24	36°C	23°C	39°C 2019	20°C 2013	33%
Dec 25	36°C	23°C	40°C 2019	21°C 2000	33%
Dec 26	36°C	23°C	39°C 2001	19°C 2010	34%
Dec 27	36°C	23°C	39°C 2016	20°C 2018	35%
Dec 28	36°C	23°C	38°C 2008	20°C 2010	35%
Dec 29	35°C	23°C	38°C 2016	20°C 2013	35%
Dec 30	35°C	23°C	38°C 2017	20°C 2013	37%
Dec 31	35°C	23°C	39°C 2020	21°C 2010	38%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:09 AM, sunset 5:40 PM
December 31: sunrise 5:22 AM, sunset 5:54 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.