Chalatenango Weather in December

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

Average highs run from 29°C on December 1 to 30°C on December 31, and lows from 18°C to 18°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, and the record, in °C.

Normal low
Normal high
Record high
Record low

December at a glance

Average high: 30°C
Average low: 18°C
Precipitation: 16 mm
Record high: 37°CDec 16, 2016
Record low: 12°CDec 30, 1997
Daylight: 11 h 22 min to 11 h 19 min
Cloud cover: 51%
Humidity: 70%
Dew point: 16°C
Wind: 11.9 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	Record high	Record low	Chance wet
Dec 1	29°C	18°C	32°C 1994	14°C 1962	19%
Dec 2	29°C	18°C	33°C 2003	15°C 1957	18%
Dec 3	29°C	18°C	33°C 1995	15°C 1960	18%
Dec 4	29°C	18°C	33°C 2009	14°C 1959	17%
Dec 5	29°C	18°C	33°C 2009	14°C 1959	16%
Dec 6	29°C	18°C	34°C 2009	14°C 1959	16%
Dec 7	29°C	18°C	34°C 2009	15°C 1982	16%
Dec 8	29°C	18°C	33°C 2013	15°C 1988	17%
Dec 9	29°C	18°C	32°C 2009	15°C 1960	17%
Dec 10	30°C	18°C	33°C 2013	13°C 1957	18%
Dec 11	30°C	18°C	32°C 2009	13°C 1957	18%
Dec 12	30°C	18°C	33°C 2009	15°C 1957	17%
Dec 13	30°C	18°C	33°C 2013	14°C 1957	18%
Dec 14	30°C	18°C	34°C 2009	14°C 1957	17%
Dec 15	30°C	18°C	34°C 2009	15°C 1960	15%
Dec 16	30°C	18°C	37°C 2016	13°C 2010	15%
Dec 17	30°C	18°C	34°C 2013	13°C 1962	14%
Dec 18	30°C	18°C	33°C 1965	13°C 1962	14%
Dec 19	30°C	18°C	36°C 1987	14°C 1957	13%
Dec 20	30°C	17°C	33°C 2016	13°C 1984	13%
Dec 21	30°C	17°C	32°C 2014	14°C 1966	12%
Dec 22	30°C	17°C	34°C 1987	13°C 1966	12%
Dec 23	30°C	17°C	33°C 1987	13°C 1966	12%
Dec 24	30°C	17°C	33°C 1982	15°C 1958	11%
Dec 25	30°C	17°C	34°C 1987	14°C 1964	10%
Dec 26	30°C	18°C	33°C 1987	13°C 1963	10%
Dec 27	30°C	18°C	33°C 2014	14°C 1961	11%
Dec 28	30°C	18°C	32°C 2015	14°C 1963	10%
Dec 29	30°C	18°C	34°C 1987	15°C 1961	10%
Dec 30	30°C	18°C	33°C 2014	12°C 1997	9%
Dec 31	30°C	18°C	33°C 2013	14°C 1982	9%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

December 1: sunrise 6:04 AM, sunset 5:26 PM
December 31: sunrise 6:19 AM, sunset 5:38 PM

Every day of December: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station ES003800510, every year on file, quality-flagged values removed. 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.