Lang Suan Weather in December

NASA POWER reanalysis for the half-degree grid cell around Lang Suan, 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 23°C to 21°C. Normal precipitation for the month is 112 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: 27°C
Average low: 22°C
Precipitation: 112 mm
Reanalysis high: 30°CDec 26, 2002
Reanalysis low: 15°CDec 26, 1999
Daylight: 11 h 35 min to 11 h 33 min
Cloud cover: 64%
Humidity: 87%
Dew point: 22°C
Wind: 6.8 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	23°C	30°C 2014	21°C 1992	57%
Dec 2	28°C	23°C	29°C 2006	20°C 2007	56%
Dec 3	28°C	22°C	29°C 2012	20°C 1992	54%
Dec 4	28°C	22°C	29°C 2006	19°C 1992	54%
Dec 5	27°C	22°C	29°C 2012	20°C 1992	52%
Dec 6	27°C	22°C	29°C 2012	19°C 2000	51%
Dec 7	27°C	22°C	29°C 1997	19°C 2000	49%
Dec 8	27°C	22°C	29°C 1997	19°C 1995	49%
Dec 9	27°C	22°C	29°C 2015	18°C 1995	48%
Dec 10	27°C	22°C	29°C 2015	19°C 1995	47%
Dec 11	27°C	22°C	29°C 2015	18°C 1995	46%
Dec 12	27°C	22°C	30°C 2015	19°C 1995	44%
Dec 13	27°C	22°C	29°C 2017	19°C 2011	43%
Dec 14	27°C	22°C	30°C 2017	19°C 2011	41%
Dec 15	27°C	22°C	30°C 2015	19°C 1996	40%
Dec 16	27°C	22°C	30°C 2013	19°C 2003	39%
Dec 17	27°C	22°C	28°C 2019	18°C 2003	39%
Dec 18	27°C	22°C	29°C 1997	19°C 2008	39%
Dec 19	27°C	22°C	29°C 2000	19°C 2013	38%
Dec 20	27°C	22°C	29°C 2018	19°C 2017	37%
Dec 21	27°C	21°C	30°C 2018	18°C 2008	37%
Dec 22	27°C	21°C	30°C 2018	18°C 2013	36%
Dec 23	27°C	21°C	29°C 2018	17°C 1999	34%
Dec 24	27°C	21°C	29°C 2018	17°C 1999	33%
Dec 25	27°C	21°C	29°C 2009	16°C 1999	32%
Dec 26	27°C	21°C	30°C 2002	15°C 1999	32%
Dec 27	27°C	21°C	29°C 2002	16°C 1996	31%
Dec 28	27°C	21°C	29°C 2020	16°C 1996	31%
Dec 29	27°C	21°C	29°C 2012	17°C 2013	31%
Dec 30	27°C	21°C	28°C 2020	18°C 1993	32%
Dec 31	27°C	21°C	29°C 1997	18°C 1993	33%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 6:25 AM, sunset 6:00 PM
December 31: sunrise 6:40 AM, sunset 6:13 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.