Calulo Weather in December

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

Average highs run from 27°C on December 1 to 28°C on December 31, and lows from 19°C to 18°C. Normal precipitation for the month is 121 mm over about 25 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: 27°C
Average low: 19°C
Precipitation: 121 mm
Reanalysis high: 35°CDec 13, 2019
Reanalysis low: 13°CDec 24, 1991
Daylight: 12 h 40 min to 12 h 42 min
Cloud cover: 84%
Humidity: 79%
Dew point: 18°C
Wind: 8.3 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	27°C	19°C	34°C 2016	17°C 2008	88%
Dec 2	27°C	19°C	34°C 2016	17°C 2005	88%
Dec 3	27°C	19°C	33°C 2005	17°C 2005	87%
Dec 4	27°C	19°C	33°C 2005	17°C 2000	86%
Dec 5	27°C	19°C	31°C 2015	17°C 2000	85%
Dec 6	27°C	19°C	31°C 2015	17°C 1998	84%
Dec 7	27°C	19°C	32°C 2019	17°C 2007	82%
Dec 8	27°C	19°C	32°C 2019	17°C 2001	81%
Dec 9	27°C	19°C	31°C 2016	16°C 2007	79%
Dec 10	27°C	19°C	32°C 2019	16°C 2007	78%
Dec 11	27°C	19°C	34°C 2019	17°C 2013	78%
Dec 12	27°C	19°C	35°C 2019	17°C 2013	77%
Dec 13	27°C	19°C	35°C 2019	17°C 2013	76%
Dec 14	27°C	19°C	33°C 2008	16°C 2011	75%
Dec 15	27°C	18°C	33°C 2008	16°C 1992	74%
Dec 16	27°C	18°C	34°C 2008	16°C 2013	73%
Dec 17	27°C	18°C	32°C 2008	16°C 2013	73%
Dec 18	27°C	18°C	32°C 2016	17°C 1991	73%
Dec 19	28°C	18°C	32°C 2005	17°C 1992	72%
Dec 20	28°C	18°C	33°C 2008	17°C 1992	71%
Dec 21	28°C	18°C	33°C 2015	15°C 1991	70%
Dec 22	28°C	18°C	32°C 2016	14°C 1991	70%
Dec 23	28°C	18°C	32°C 2016	14°C 1991	71%
Dec 24	28°C	18°C	33°C 2016	13°C 1991	72%
Dec 25	28°C	18°C	33°C 2017	14°C 1991	71%
Dec 26	28°C	18°C	34°C 2016	15°C 1995	71%
Dec 27	28°C	18°C	33°C 2015	16°C 1998	71%
Dec 28	28°C	18°C	33°C 2002	16°C 1995	71%
Dec 29	28°C	18°C	33°C 2008	16°C 1995	72%
Dec 30	28°C	18°C	33°C 2008	16°C 1994	72%
Dec 31	28°C	18°C	32°C 1997	16°C 2007	73%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+1).

December 1: sunrise 5:29 AM, sunset 6:09 PM
December 31: sunrise 5:42 AM, sunset 6:24 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.