San Nicolas Weather in December

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

Average highs run from 28°C on December 1 to 28°C on December 31, and lows from 23°C to 21°C. Normal precipitation for the month is 78 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: 28°C
Average low: 22°C
Precipitation: 78 mm
Reanalysis high: 33°CDec 4, 2018
Reanalysis low: 17°CDec 29, 1996
Daylight: 11 h 07 min to 11 h 03 min
Cloud cover: 59%
Humidity: 79%
Dew point: 20°C
Wind: 24.8 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	28°C	23°C	31°C 1994	18°C 2007	35%
Dec 2	28°C	23°C	31°C 2018	19°C 2007	34%
Dec 3	28°C	22°C	32°C 2018	20°C 2009	33%
Dec 4	28°C	22°C	33°C 2018	19°C 1991	33%
Dec 5	28°C	22°C	32°C 2018	19°C 2009	33%
Dec 6	28°C	22°C	33°C 2018	19°C 2009	32%
Dec 7	28°C	22°C	32°C 2018	20°C 2009	33%
Dec 8	28°C	22°C	31°C 2018	20°C 1996	33%
Dec 9	28°C	22°C	32°C 1994	19°C 1993	32%
Dec 10	28°C	22°C	32°C 2018	20°C 2019	31%
Dec 11	28°C	22°C	32°C 2018	20°C 2002	31%
Dec 12	28°C	22°C	32°C 1994	20°C 2002	31%
Dec 13	28°C	22°C	31°C 1994	21°C 1996	31%
Dec 14	28°C	22°C	31°C 1997	21°C 2002	31%
Dec 15	28°C	22°C	32°C 1997	20°C 2003	31%
Dec 16	28°C	22°C	32°C 1997	19°C 2008	30%
Dec 17	28°C	22°C	31°C 1997	19°C 2006	30%
Dec 18	28°C	22°C	31°C 1997	19°C 2008	29%
Dec 19	28°C	22°C	32°C 2002	19°C 2008	28%
Dec 20	28°C	22°C	31°C 1997	19°C 2003	28%
Dec 21	28°C	22°C	32°C 2018	19°C 2003	29%
Dec 22	28°C	22°C	32°C 2018	17°C 1999	30%
Dec 23	28°C	22°C	31°C 2002	17°C 1999	31%
Dec 24	28°C	22°C	32°C 2002	18°C 1999	31%
Dec 25	28°C	21°C	31°C 2002	19°C 2001	30%
Dec 26	28°C	21°C	31°C 2018	18°C 1996	28%
Dec 27	28°C	21°C	31°C 1992	18°C 2001	27%
Dec 28	28°C	21°C	30°C 1994	18°C 1996	26%
Dec 29	28°C	21°C	31°C 1994	17°C 1996	24%
Dec 30	28°C	21°C	31°C 1994	17°C 1996	24%
Dec 31	28°C	21°C	31°C 1997	17°C 1995	22%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+8).

December 1: sunrise 6:13 AM, sunset 5:20 PM
December 31: sunrise 6:29 AM, sunset 5:32 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.