Nishinoomote Weather in December

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

Average highs run from 20°C on December 1 to 17°C on December 31, and lows from 18°C to 14°C. Normal precipitation for the month is 140 mm over about 16 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: 18°C
Average low: 16°C
Precipitation: 140 mm
Reanalysis high: 25°CDec 4, 2004
Reanalysis low: 6°CDec 18, 2005
Daylight: 10 h 19 min to 10 h 12 min
Cloud cover: 70%
Humidity: 72%
Dew point: 12°C
Wind: 27.4 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	20°C	18°C	24°C 2014	12°C 1996	45%
Dec 2	20°C	18°C	24°C 2015	11°C 1996	46%
Dec 3	20°C	17°C	23°C 2018	11°C 1997	47%
Dec 4	20°C	17°C	25°C 2004	12°C 2005	47%
Dec 5	19°C	17°C	23°C 2018	12°C 2005	47%
Dec 6	19°C	17°C	24°C 2018	11°C 1996	46%
Dec 7	19°C	17°C	23°C 2006	12°C 2008	44%
Dec 8	19°C	17°C	22°C 2006	12°C 1996	43%
Dec 9	19°C	16°C	23°C 1994	12°C 2012	44%
Dec 10	19°C	16°C	24°C 2015	10°C 2002	45%
Dec 11	18°C	16°C	23°C 2015	12°C 2002	44%
Dec 12	18°C	16°C	22°C 2004	12°C 2000	45%
Dec 13	18°C	16°C	23°C 2006	11°C 1991	46%
Dec 14	18°C	16°C	22°C 2010	12°C 1992	47%
Dec 15	18°C	16°C	23°C 2012	11°C 2020	46%
Dec 16	18°C	16°C	21°C 2002	11°C 2011	45%
Dec 17	18°C	16°C	23°C 2019	10°C 2005	46%
Dec 18	18°C	15°C	22°C 2019	6°C 2005	46%
Dec 19	18°C	15°C	22°C 2002	11°C 2005	44%
Dec 20	18°C	15°C	23°C 1997	10°C 2003	45%
Dec 21	18°C	15°C	23°C 2008	9°C 2005	46%
Dec 22	17°C	15°C	23°C 2016	9°C 2005	46%
Dec 23	17°C	15°C	23°C 2015	11°C 2012	46%
Dec 24	17°C	15°C	21°C 1994	10°C 2012	46%
Dec 25	17°C	15°C	22°C 1991	9°C 1995	45%
Dec 26	17°C	15°C	22°C 2016	10°C 1995	45%
Dec 27	17°C	15°C	23°C 2016	10°C 2003	45%
Dec 28	17°C	15°C	22°C 2007	11°C 2018	44%
Dec 29	17°C	14°C	21°C 1997	10°C 2006	43%
Dec 30	17°C	14°C	22°C 1997	10°C 2020	43%
Dec 31	17°C	14°C	20°C 1993	9°C 2020	43%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 6:55 AM, sunset 5:14 PM
December 31: sunrise 7:13 AM, sunset 5:25 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.