Miyakojima Weather in December

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

Average highs run from 24°C on December 1 to 21°C on December 31, and lows from 22°C to 20°C. Normal precipitation for the month is 74 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: 22°C
Average low: 21°C
Precipitation: 74 mm
Reanalysis high: 27°CDec 4, 2016
Reanalysis low: 12°CDec 22, 2005
Daylight: 10 h 43 min to 10 h 37 min
Cloud cover: 84%
Humidity: 76%
Dew point: 17°C
Wind: 29.5 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	24°C	22°C	26°C 2015	18°C 1996	49%
Dec 2	23°C	22°C	26°C 2015	19°C 1996	50%
Dec 3	23°C	22°C	26°C 2018	20°C 2009	50%
Dec 4	23°C	22°C	27°C 2016	17°C 2005	49%
Dec 5	23°C	22°C	26°C 2018	15°C 2005	49%
Dec 6	23°C	22°C	26°C 2015	17°C 1996	49%
Dec 7	23°C	22°C	25°C 2006	17°C 1996	50%
Dec 8	23°C	22°C	25°C 2011	18°C 2010	50%
Dec 9	23°C	21°C	25°C 2015	18°C 2002	50%
Dec 10	23°C	21°C	26°C 2015	18°C 2002	50%
Dec 11	23°C	21°C	26°C 2018	19°C 1997	50%
Dec 12	23°C	21°C	25°C 2016	18°C 2005	50%
Dec 13	22°C	21°C	25°C 2010	18°C 2005	49%
Dec 14	22°C	21°C	25°C 2010	18°C 2005	50%
Dec 15	22°C	21°C	24°C 2012	16°C 2005	50%
Dec 16	22°C	21°C	25°C 1999	17°C 2014	49%
Dec 17	22°C	21°C	25°C 2000	15°C 2005	48%
Dec 18	22°C	21°C	25°C 2002	15°C 2005	47%
Dec 19	22°C	21°C	25°C 2016	17°C 2009	47%
Dec 20	22°C	21°C	25°C 2000	16°C 2009	46%
Dec 21	22°C	20°C	25°C 2016	14°C 2005	46%
Dec 22	22°C	20°C	26°C 2016	12°C 2005	45%
Dec 23	22°C	20°C	25°C 2015	15°C 2005	46%
Dec 24	22°C	20°C	25°C 2015	16°C 1992	46%
Dec 25	22°C	20°C	25°C 2018	15°C 2001	44%
Dec 26	22°C	20°C	25°C 2018	16°C 2010	43%
Dec 27	22°C	20°C	25°C 2016	16°C 2013	42%
Dec 28	21°C	20°C	24°C 1992	14°C 1991	43%
Dec 29	21°C	20°C	24°C 2019	15°C 1991	43%
Dec 30	21°C	20°C	24°C 2019	14°C 2020	44%
Dec 31	21°C	20°C	23°C 2005	14°C 2020	46%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 7:06 AM, sunset 5:49 PM
December 31: sunrise 7:23 AM, sunset 6:00 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.