Bireun Weather in December

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

Average highs run from 26°C on December 1 to 26°C on December 31, and lows from 20°C to 20°C. Normal precipitation for the month is 257 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: 26°C
Average low: 20°C
Precipitation: 257 mm
Reanalysis high: 28°CDec 10, 2009
Reanalysis low: 15°CDec 12, 1994
Daylight: 11 h 50 min to 11 h 50 min
Cloud cover: 87%
Humidity: 91%
Dew point: 21°C
Wind: 3.6 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	26°C	20°C	28°C 2018	19°C 2005	82%
Dec 2	26°C	20°C	27°C 2004	18°C 2016	81%
Dec 3	26°C	20°C	28°C 2015	19°C 2011	81%
Dec 4	26°C	20°C	27°C 2011	19°C 2007	80%
Dec 5	26°C	20°C	28°C 2012	19°C 2010	80%
Dec 6	26°C	20°C	27°C 2012	18°C 1991	80%
Dec 7	26°C	20°C	27°C 1992	18°C 2017	79%
Dec 8	26°C	20°C	28°C 2002	19°C 1995	78%
Dec 9	26°C	20°C	27°C 2009	19°C 1995	77%
Dec 10	26°C	20°C	28°C 2009	18°C 2016	77%
Dec 11	26°C	20°C	27°C 2009	17°C 2016	78%
Dec 12	26°C	20°C	27°C 2009	15°C 1994	79%
Dec 13	26°C	20°C	27°C 2000	17°C 2016	80%
Dec 14	26°C	20°C	27°C 2015	18°C 2020	79%
Dec 15	26°C	20°C	27°C 1994	18°C 1995	79%
Dec 16	26°C	20°C	27°C 2016	18°C 1995	79%
Dec 17	26°C	20°C	28°C 1995	18°C 1994	79%
Dec 18	26°C	20°C	27°C 1994	18°C 2010	78%
Dec 19	26°C	20°C	27°C 2019	19°C 2008	78%
Dec 20	26°C	20°C	27°C 2019	18°C 2003	77%
Dec 21	26°C	20°C	27°C 2019	19°C 2005	76%
Dec 22	26°C	20°C	27°C 2002	19°C 1996	76%
Dec 23	26°C	20°C	28°C 2015	19°C 1993	75%
Dec 24	26°C	20°C	27°C 2003	18°C 2011	75%
Dec 25	26°C	20°C	27°C 2020	19°C 1999	74%
Dec 26	26°C	20°C	27°C 2019	18°C 1999	73%
Dec 27	26°C	20°C	27°C 2009	18°C 1996	70%
Dec 28	26°C	20°C	27°C 2012	17°C 1996	68%
Dec 29	26°C	20°C	28°C 2019	18°C 1996	68%
Dec 30	26°C	20°C	27°C 2018	19°C 1996	66%
Dec 31	26°C	20°C	27°C 2003	19°C 2002	65%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+7).

December 1: sunrise 6:27 AM, sunset 6:17 PM
December 31: sunrise 6:41 AM, sunset 6:31 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.