San José de Metán Weather in December

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

Average highs run from 31°C on December 1 to 31°C on December 31, and lows from 17°C to 19°C. Normal precipitation for the month is 143 mm over about 16 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: 31°C
Average low: 18°C
Precipitation: 143 mm
Reanalysis high: 40°CDec 26, 1997
Reanalysis low: 9°CDec 13, 2010
Daylight: 13 h 36 min to 13 h 42 min
Cloud cover: 63%
Humidity: 63%
Dew point: 15°C
Wind: 12.6 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	31°C	17°C	37°C 1994	12°C 1993	48%
Dec 2	31°C	17°C	38°C 1994	11°C 2018	48%
Dec 3	31°C	17°C	38°C 1993	13°C 2018	49%
Dec 4	31°C	17°C	38°C 1993	13°C 2001	49%
Dec 5	31°C	17°C	37°C 2013	13°C 2019	50%
Dec 6	31°C	17°C	39°C 2014	10°C 1999	50%
Dec 7	31°C	17°C	38°C 2014	12°C 2009	50%
Dec 8	31°C	17°C	35°C 2017	13°C 2018	50%
Dec 9	31°C	18°C	36°C 1994	13°C 2001	51%
Dec 10	31°C	18°C	39°C 2012	13°C 2002	51%
Dec 11	31°C	18°C	38°C 2018	14°C 2007	51%
Dec 12	31°C	18°C	37°C 2015	11°C 2010	50%
Dec 13	31°C	18°C	37°C 2017	9°C 2010	50%
Dec 14	31°C	18°C	36°C 2003	10°C 2010	50%
Dec 15	31°C	18°C	35°C 1999	13°C 1991	48%
Dec 16	31°C	18°C	38°C 2017	13°C 2007	48%
Dec 17	31°C	18°C	39°C 2015	13°C 2003	50%
Dec 18	31°C	18°C	39°C 1995	13°C 2017	50%
Dec 19	31°C	18°C	39°C 1995	13°C 2015	50%
Dec 20	31°C	18°C	39°C 1995	15°C 2016	50%
Dec 21	31°C	18°C	38°C 2003	14°C 2018	51%
Dec 22	31°C	19°C	38°C 2015	13°C 1998	51%
Dec 23	31°C	19°C	38°C 2015	11°C 2014	53%
Dec 24	31°C	19°C	37°C 2012	13°C 2014	54%
Dec 25	31°C	19°C	38°C 2016	12°C 2011	55%
Dec 26	31°C	19°C	40°C 1997	13°C 2012	56%
Dec 27	31°C	19°C	38°C 1998	12°C 2012	56%
Dec 28	31°C	19°C	38°C 1998	14°C 2012	56%
Dec 29	31°C	19°C	36°C 2013	13°C 2003	58%
Dec 30	31°C	19°C	37°C 2013	14°C 1993	59%
Dec 31	31°C	19°C	39°C 2012	15°C 2020	60%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 6:21 AM, sunset 7:57 PM
December 31: sunrise 6:32 AM, sunset 8:14 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.