Pekan Weather in December

NASA POWER reanalysis for the half-degree grid cell around Pekan, 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 27°C on December 31, and lows from 27°C to 26°C. Normal precipitation for the month is 533 mm over about 28 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: 27°C
Average low: 26°C
Precipitation: 533 mm
Reanalysis high: 30°CDec 22, 2015
Reanalysis low: 24°CDec 30, 1996
Daylight: 11 h 56 min to 11 h 56 min
Cloud cover: 86%
Humidity: 85%
Dew point: 24°C
Wind: 20.9 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	28°C	27°C	28°C 2002	26°C 1992	96%
Dec 2	28°C	27°C	28°C 2014	26°C 1992	95%
Dec 3	28°C	27°C	29°C 2014	26°C 1992	94%
Dec 4	28°C	27°C	29°C 2015	25°C 1994	93%
Dec 5	28°C	27°C	29°C 2015	26°C 1994	92%
Dec 6	28°C	27°C	29°C 2015	26°C 1994	91%
Dec 7	28°C	27°C	29°C 2015	25°C 1992	91%
Dec 8	28°C	27°C	29°C 2015	25°C 1992	90%
Dec 9	28°C	27°C	29°C 2000	25°C 1992	90%
Dec 10	28°C	27°C	29°C 2015	25°C 1992	90%
Dec 11	28°C	27°C	29°C 2014	25°C 1991	91%
Dec 12	28°C	27°C	29°C 2016	25°C 1991	91%
Dec 13	28°C	27°C	29°C 2016	25°C 1992	90%
Dec 14	28°C	26°C	29°C 2016	25°C 1992	90%
Dec 15	28°C	26°C	29°C 2005	25°C 1992	89%
Dec 16	27°C	26°C	29°C 2015	25°C 1992	89%
Dec 17	27°C	26°C	28°C 2015	25°C 1992	88%
Dec 18	27°C	26°C	28°C 2016	25°C 2010	88%
Dec 19	27°C	26°C	29°C 2015	25°C 1992	87%
Dec 20	27°C	26°C	28°C 2015	25°C 1992	86%
Dec 21	27°C	26°C	29°C 2015	25°C 1992	86%
Dec 22	27°C	26°C	30°C 2015	25°C 1996	85%
Dec 23	27°C	26°C	29°C 2015	25°C 1992	85%
Dec 24	27°C	26°C	29°C 2018	25°C 1992	84%
Dec 25	27°C	26°C	29°C 2015	25°C 1995	83%
Dec 26	27°C	26°C	29°C 2015	25°C 1995	81%
Dec 27	27°C	26°C	29°C 2015	25°C 1996	80%
Dec 28	27°C	26°C	29°C 2018	24°C 1996	80%
Dec 29	27°C	26°C	29°C 2015	25°C 1996	79%
Dec 30	27°C	26°C	29°C 2018	24°C 1996	78%
Dec 31	27°C	26°C	28°C 2015	24°C 1996	76%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 6:57 AM, sunset 6:53 PM
December 31: sunrise 7:11 AM, sunset 7:07 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.