Mossel Bay Weather in December
Average highs run from 23°C on December 1 to 26°C on December 31, and lows from 14°C to 16°C. Normal precipitation for the month is 37 mm over about 6 wet days.
December day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
December at a glance
- Average high
- 24°C
- Average low
- 14°C
- Precipitation
- 37 mm
- Record high
- 36°CDec 17, 2019
- Record low
- 2°CDec 16, 2021
- Daylight
- 14 h 15 min to 14 h 24 min
- Cloud cover
- 43%
- Humidity
- 65%
- Dew point
- 13°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 | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Dec 1 | 23°C | 14°C | 35°C 1984 | 9°C 1981 | 20% |
| Dec 2 | 24°C | 30°C 2012 | 9°C 1981 | 20% | |
| Dec 3 | 23°C | 31°C 2004 | 9°C 2020 | 20% | |
| Dec 4 | 23°C | 14°C | 31°C 2004 | 10°C 1998 | 19% |
| Dec 5 | 24°C | 34°C 2011 | 10°C 2006 | 19% | |
| Dec 6 | 25°C | 35°C 2006 | 10°C 1989 | 19% | |
| Dec 7 | 24°C | 14°C | 28°C 2003 | 10°C 1988 | 20% |
| Dec 8 | 24°C | 36°C 2017 | 9°C 1980 | 19% | |
| Dec 9 | 23°C | 29°C 1987 | 9°C 2011 | 19% | |
| Dec 10 | 23°C | 14°C | 34°C 1988 | 9°C 2003 | 18% |
| Dec 11 | 24°C | 14°C | 30°C 2002 | 9°C 2006 | 17% |
| Dec 12 | 25°C | 14°C | 30°C 2002 | 10°C 1985 | 16% |
| Dec 13 | 25°C | 14°C | 33°C 1999 | 9°C 2005 | 16% |
| Dec 14 | 25°C | 15°C | 33°C 1999 | 9°C 1982 | 17% |
| Dec 15 | 25°C | 14°C | 32°C 1982 | 9°C 2017 | 17% |
| Dec 16 | 24°C | 14°C | 32°C 1982 | 2°C 2021 | 19% |
| Dec 17 | 25°C | 14°C | 36°C 2019 | 10°C 1988 | 18% |
| Dec 18 | 24°C | 14°C | 35°C 1989 | 9°C 2021 | 19% |
| Dec 19 | 25°C | 14°C | 34°C 1991 | 10°C 2002 | 20% |
| Dec 20 | 25°C | 15°C | 34°C 1997 | 11°C 1990 | 21% |
| Dec 21 | 25°C | 15°C | 34°C 1997 | 10°C 2005 | 22% |
| Dec 22 | 25°C | 33°C 2022 | 10°C 1992 | 21% | |
| Dec 23 | 25°C | 15°C | 31°C 1999 | 10°C 1998 | 21% |
| Dec 24 | 25°C | 32°C 1993 | 11°C 1984 | 21% | |
| Dec 25 | 24°C | 15°C | 31°C 2004 | 8°C 2008 | 22% |
| Dec 26 | 24°C | 14°C | 31°C 2004 | 9°C 2003 | 23% |
| Dec 27 | 25°C | 14°C | 34°C 2012 | 9°C 2003 | 22% |
| Dec 28 | 24°C | 34°C 2012 | 11°C 2003 | 22% | |
| Dec 29 | 25°C | 15°C | 32°C 2004 | 11°C 1987 | 22% |
| Dec 30 | 26°C | 15°C | 35°C 2016 | 10°C 2005 | 22% |
| Dec 31 | 26°C | 16°C | 31°C 2015 | 10°C 2008 | 22% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- December 1
- sunrise 5:13 AM, sunset 7:28 PM
- December 31
- sunrise 5:22 AM, sunset 7:46 PM
Other months
Sources
Records: NOAA GHCN-Daily, station SF000288380, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: 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.