La Isla Weather in December

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

Average highs run from 26°C on December 1 to 25°C on December 31, and lows from 19°C to 17°C. Normal precipitation for the month is 43 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: 25°C
Average low: 18°C
Precipitation: 43 mm
Reanalysis high: 35°CDec 22, 2004
Reanalysis low: 8°CDec 15, 1997
Daylight: 11 h 06 min to 11 h 02 min
Cloud cover: 60%
Humidity: 83%
Dew point: 18°C
Wind: 9.4 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	19°C	34°C 2018	13°C 2011	36%
Dec 2	26°C	19°C	29°C 2018	15°C 2006	36%
Dec 3	26°C	18°C	30°C 1997	16°C 1999	37%
Dec 4	26°C	18°C	31°C 2013	13°C 2006	37%
Dec 5	26°C	18°C	30°C 2013	14°C 2006	35%
Dec 6	26°C	18°C	30°C 2004	15°C 2002	34%
Dec 7	26°C	18°C	30°C 2004	15°C 2002	34%
Dec 8	26°C	18°C	30°C 2009	12°C 2017	33%
Dec 9	26°C	18°C	33°C 2009	10°C 2017	32%
Dec 10	26°C	18°C	32°C 2019	9°C 2017	32%
Dec 11	25°C	18°C	28°C 2007	11°C 2017	31%
Dec 12	25°C	18°C	32°C 1999	12°C 2008	31%
Dec 13	25°C	18°C	32°C 2018	11°C 1997	30%
Dec 14	25°C	18°C	30°C 1992	10°C 1997	30%
Dec 15	25°C	18°C	29°C 1992	8°C 1997	30%
Dec 16	25°C	18°C	32°C 2019	11°C 1997	30%
Dec 17	25°C	18°C	30°C 1995	12°C 2018	30%
Dec 18	25°C	18°C	32°C 1995	11°C 2003	29%
Dec 19	25°C	18°C	29°C 2002	11°C 1996	28%
Dec 20	25°C	18°C	32°C 1999	11°C 1996	29%
Dec 21	25°C	18°C	31°C 2013	13°C 2003	29%
Dec 22	25°C	18°C	35°C 2004	15°C 2003	29%
Dec 23	25°C	18°C	34°C 2014	15°C 2012	28%
Dec 24	25°C	18°C	32°C 2015	14°C 2014	27%
Dec 25	25°C	18°C	30°C 2012	13°C 2014	27%
Dec 26	25°C	18°C	29°C 1997	13°C 1993	28%
Dec 27	25°C	18°C	34°C 2015	13°C 2010	28%
Dec 28	25°C	18°C	30°C 2012	12°C 1997	28%
Dec 29	25°C	17°C	31°C 2019	13°C 1997	27%
Dec 30	25°C	17°C	33°C 2010	10°C 1997	26%
Dec 31	25°C	17°C	34°C 2010	13°C 1997	27%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

December 1: sunrise 6:41 AM, sunset 5:47 PM
December 31: sunrise 6:57 AM, sunset 5:59 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.