Jeffreys Bay Weather in December

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

Average highs run from 23°C on December 1 to 25°C on December 31, and lows from 16°C to 18°C. Normal precipitation for the month is 47 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: 24°C
Average low: 17°C
Precipitation: 47 mm
Reanalysis high: 37°CDec 30, 2007
Reanalysis low: 12°CDec 3, 1996
Daylight: 14 h 15 min to 14 h 23 min
Cloud cover: 56%
Humidity: 74%
Dew point: 15°C
Wind: 15.8 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	23°C	16°C	29°C 2000	14°C 2008	26%
Dec 2	23°C	16°C	32°C 2007	13°C 1995	25%
Dec 3	23°C	16°C	30°C 2016	12°C 1996	25%
Dec 4	24°C	17°C	30°C 2004	13°C 2007	25%
Dec 5	24°C	17°C	30°C 1998	14°C 1991	24%
Dec 6	24°C	17°C	32°C 2019	14°C 2014	24%
Dec 7	24°C	17°C	33°C 2002	13°C 2010	24%
Dec 8	24°C	17°C	30°C 2001	14°C 2010	24%
Dec 9	24°C	17°C	27°C 2001	14°C 2011	24%
Dec 10	24°C	17°C	29°C 1996	14°C 2006	24%
Dec 11	24°C	17°C	30°C 2002	14°C 1994	23%
Dec 12	24°C	17°C	36°C 2004	14°C 1994	22%
Dec 13	24°C	17°C	30°C 1999	14°C 2017	22%
Dec 14	24°C	17°C	31°C 1991	15°C 2011	23%
Dec 15	24°C	17°C	31°C 2001	13°C 2017	24%
Dec 16	24°C	17°C	30°C 2003	14°C 2011	25%
Dec 17	25°C	17°C	35°C 2019	14°C 2019	26%
Dec 18	25°C	17°C	32°C 1991	14°C 1997	28%
Dec 19	25°C	17°C	32°C 1998	14°C 2017	29%
Dec 20	25°C	17°C	32°C 1997	14°C 2017	29%
Dec 21	25°C	18°C	31°C 2009	15°C 2005	31%
Dec 22	25°C	18°C	36°C 2012	15°C 1991	30%
Dec 23	25°C	18°C	32°C 2015	16°C 2003	30%
Dec 24	25°C	18°C	34°C 1998	15°C 2008	30%
Dec 25	25°C	18°C	30°C 2004	14°C 2008	31%
Dec 26	25°C	18°C	32°C 2011	14°C 2003	31%
Dec 27	25°C	18°C	32°C 2012	13°C 2003	32%
Dec 28	25°C	18°C	29°C 2015	14°C 2003	32%
Dec 29	25°C	18°C	32°C 2004	16°C 2005	32%
Dec 30	25°C	18°C	37°C 2007	16°C 2005	32%
Dec 31	25°C	18°C	30°C 2016	15°C 2006	33%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 5:02 AM, sunset 7:17 PM
December 31: sunrise 5:12 AM, sunset 7:35 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.