Graaff Reinet Weather in December

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

Average highs run from 31°C on December 1 to 33°C on December 31, and lows from 13°C to 15°C. Normal precipitation for the month is 53 mm over about 9 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: 32°C
Average low: 14°C
Precipitation: 53 mm
Reanalysis high: 42°CDec 17, 2018
Reanalysis low: 6°CDec 1, 1995
Daylight: 14 h 06 min to 14 h 14 min
Cloud cover: 44%
Humidity: 52%
Dew point: 9°C
Wind: 16.6 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	31°C	13°C	41°C 2015	6°C 1995	28%
Dec 2	31°C	13°C	42°C 2019	8°C 1995	28%
Dec 3	31°C	13°C	42°C 2016	8°C 2020	28%
Dec 4	31°C	13°C	41°C 1994	8°C 1991	27%
Dec 5	31°C	13°C	38°C 1994	6°C 1991	26%
Dec 6	31°C	14°C	41°C 2016	9°C 2013	26%
Dec 7	31°C	14°C	38°C 2003	9°C 2010	25%
Dec 8	31°C	14°C	42°C 1994	9°C 2011	25%
Dec 9	31°C	14°C	38°C 1997	8°C 2011	25%
Dec 10	31°C	14°C	37°C 2015	9°C 1994	24%
Dec 11	31°C	14°C	38°C 2015	6°C 1994	23%
Dec 12	32°C	14°C	41°C 2004	8°C 1994	23%
Dec 13	32°C	14°C	40°C 2006	8°C 2005	22%
Dec 14	32°C	14°C	39°C 1991	10°C 2009	23%
Dec 15	32°C	14°C	39°C 1997	9°C 2011	25%
Dec 16	32°C	14°C	41°C 2003	8°C 2019	25%
Dec 17	32°C	14°C	42°C 2018	9°C 1997	26%
Dec 18	32°C	14°C	42°C 2016	8°C 1997	27%
Dec 19	32°C	14°C	40°C 2016	9°C 2007	29%
Dec 20	32°C	15°C	41°C 1997	9°C 1996	29%
Dec 21	32°C	15°C	42°C 2009	10°C 1991	30%
Dec 22	32°C	15°C	38°C 2012	10°C 1991	29%
Dec 23	32°C	15°C	40°C 2015	11°C 1995	29%
Dec 24	32°C	15°C	40°C 1998	10°C 1994	31%
Dec 25	32°C	15°C	38°C 2006	9°C 2008	33%
Dec 26	32°C	15°C	40°C 1996	8°C 2003	34%
Dec 27	32°C	15°C	39°C 2016	6°C 2003	34%
Dec 28	33°C	15°C	40°C 2015	9°C 2003	34%
Dec 29	33°C	15°C	41°C 2018	11°C 2003	33%
Dec 30	33°C	15°C	39°C 1997	10°C 2005	33%
Dec 31	33°C	15°C	42°C 2016	10°C 2006	34%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+2).

December 1: sunrise 5:08 AM, sunset 7:14 PM
December 31: sunrise 5:18 AM, sunset 7:32 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.