Ginowan Weather in December

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

Average highs run from 22°C on December 1 to 20°C on December 31, and lows from 20°C to 18°C. Normal precipitation for the month is 74 mm over about 12 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: 21°C
Average low: 19°C
Precipitation: 74 mm
Reanalysis high: 26°CDec 4, 2018
Reanalysis low: 11°CDec 22, 2005
Daylight: 10 h 37 min to 10 h 31 min
Cloud cover: 77%
Humidity: 74%
Dew point: 15°C
Wind: 25.9 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	Reanalysis high	Reanalysis low	Chance wet
Dec 1	22°C	20°C	25°C 1993	16°C 1996	40%
Dec 2	22°C	20°C	25°C 2015	16°C 1996	40%
Dec 3	22°C	20°C	26°C 2018	17°C 1997	40%
Dec 4	22°C	20°C	26°C 2018	16°C 2005	40%
Dec 5	22°C	20°C	25°C 2016	15°C 2005	39%
Dec 6	22°C	20°C	26°C 2018	15°C 1996	39%
Dec 7	22°C	20°C	24°C 2006	16°C 1996	38%
Dec 8	22°C	20°C	25°C 2011	16°C 1996	39%
Dec 9	22°C	20°C	25°C 1994	16°C 2002	40%
Dec 10	21°C	19°C	25°C 2015	16°C 2002	41%
Dec 11	21°C	19°C	25°C 1994	16°C 1997	41%
Dec 12	21°C	19°C	25°C 1994	16°C 2005	41%
Dec 13	21°C	19°C	25°C 2016	16°C 2005	41%
Dec 14	21°C	19°C	24°C 2010	16°C 2005	41%
Dec 15	21°C	19°C	24°C 2012	15°C 2005	42%
Dec 16	21°C	19°C	24°C 2019	15°C 2014	42%
Dec 17	21°C	19°C	25°C 2019	13°C 2014	42%
Dec 18	21°C	19°C	24°C 2019	14°C 2005	43%
Dec 19	21°C	19°C	24°C 2016	15°C 2009	43%
Dec 20	21°C	18°C	24°C 2016	15°C 2003	43%
Dec 21	20°C	18°C	24°C 2016	12°C 2005	43%
Dec 22	20°C	18°C	26°C 2016	11°C 2005	43%
Dec 23	20°C	18°C	24°C 2015	14°C 2005	42%
Dec 24	20°C	18°C	24°C 2017	15°C 2012	41%
Dec 25	20°C	18°C	24°C 1991	15°C 2001	39%
Dec 26	20°C	18°C	25°C 2018	14°C 2010	38%
Dec 27	20°C	18°C	23°C 2020	14°C 2010	38%
Dec 28	20°C	18°C	24°C 1992	13°C 1991	39%
Dec 29	20°C	18°C	23°C 2012	14°C 1991	40%
Dec 30	20°C	18°C	23°C 2012	13°C 2020	41%
Dec 31	20°C	18°C	23°C 2003	12°C 2010	41%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+9).

December 1: sunrise 6:59 AM, sunset 5:36 PM
December 31: sunrise 7:16 AM, sunset 5:47 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.