Ar Riyāḑ Weather in December
Average highs run from 24°C on December 1 to 20°C on December 31, and lows from 13°C to 9°C. Normal precipitation for the month is 9 mm over about 3 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
- 22°C
- Average low
- 11°C
- Precipitation
- 9 mm
- Reanalysis high
- 34°CDec 2, 2013
- Reanalysis low
- 3°CDec 29, 1991
- Daylight
- 10 h 16 min to 10 h 09 min
- Cloud cover
- 56%
- Humidity
- 66%
- Dew point
- 8°C
- Wind
- 13.3 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 | 24°C | 13°C | 30°C 2010 | 9°C 2020 | 11% |
| Dec 2 | 24°C | 13°C | 34°C 2013 | 9°C 1996 | 11% |
| Dec 3 | 23°C | 13°C | 31°C 2010 | 9°C 2001 | 10% |
| Dec 4 | 23°C | 12°C | 32°C 2008 | 9°C 1997 | 10% |
| Dec 5 | 23°C | 12°C | 29°C 2014 | 9°C 2009 | 11% |
| Dec 6 | 23°C | 12°C | 30°C 1998 | 8°C 2009 | 11% |
| Dec 7 | 23°C | 12°C | 29°C 1998 | 8°C 1991 | 11% |
| Dec 8 | 22°C | 12°C | 27°C 2002 | 9°C 2011 | 10% |
| Dec 9 | 22°C | 12°C | 25°C 2003 | 7°C 2007 | 11% |
| Dec 10 | 22°C | 11°C | 26°C 1992 | 8°C 2007 | 11% |
| Dec 11 | 22°C | 11°C | 27°C 2014 | 6°C 1991 | 10% |
| Dec 12 | 22°C | 11°C | 26°C 2017 | 7°C 2013 | 10% |
| Dec 13 | 22°C | 11°C | 27°C 2020 | 6°C 2013 | 10% |
| Dec 14 | 21°C | 11°C | 26°C 2005 | 6°C 2013 | 10% |
| Dec 15 | 21°C | 11°C | 25°C 2018 | 7°C 2013 | 10% |
| Dec 16 | 21°C | 11°C | 24°C 2010 | 8°C 1994 | 9% |
| Dec 17 | 21°C | 11°C | 25°C 2017 | 6°C 1991 | 11% |
| Dec 18 | 21°C | 10°C | 26°C 2008 | 6°C 2001 | 11% |
| Dec 19 | 21°C | 10°C | 27°C 2011 | 6°C 2006 | 11% |
| Dec 20 | 21°C | 10°C | 28°C 1999 | 6°C 1991 | 10% |
| Dec 21 | 21°C | 10°C | 26°C 1999 | 7°C 2016 | 10% |
| Dec 22 | 21°C | 10°C | 25°C 1996 | 7°C 1994 | 9% |
| Dec 23 | 21°C | 10°C | 25°C 2010 | 6°C 2016 | 9% |
| Dec 24 | 21°C | 10°C | 25°C 2010 | 6°C 2013 | 9% |
| Dec 25 | 21°C | 10°C | 25°C 2009 | 5°C 2003 | 8% |
| Dec 26 | 21°C | 10°C | 27°C 2010 | 5°C 2003 | 8% |
| Dec 27 | 21°C | 10°C | 27°C 2010 | 5°C 2003 | 8% |
| Dec 28 | 21°C | 10°C | 28°C 2010 | 6°C 1999 | 8% |
| Dec 29 | 20°C | 9°C | 24°C 1995 | 3°C 1991 | 8% |
| Dec 30 | 20°C | 9°C | 24°C 1999 | 4°C 1991 | 10% |
| Dec 31 | 20°C | 9°C | 28°C 1999 | 5°C 1992 | 10% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- December 1
- sunrise 6:37 AM, sunset 4:53 PM
- December 31
- sunrise 6:55 AM, sunset 5:04 PM
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.