Rosetta Weather in December
Average highs run from 21°C on December 1 to 18°C on December 31, and lows from 17°C to 14°C. Normal precipitation for the month is 31 mm over about 6 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
- 19°C
- Average low
- 15°C
- Precipitation
- 31 mm
- Reanalysis high
- 29°CDec 2, 2013
- Reanalysis low
- 10°CDec 29, 1991
- Daylight
- 10 h 16 min to 10 h 08 min
- Cloud cover
- 59%
- Humidity
- 68%
- Dew point
- 11°C
- Wind
- 18.4 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 | 21°C | 17°C | 25°C 2012 | 15°C 2020 | 19% |
| Dec 2 | 21°C | 17°C | 29°C 2013 | 13°C 1994 | 20% |
| Dec 3 | 21°C | 17°C | 26°C 2010 | 13°C 1994 | 20% |
| Dec 4 | 21°C | 17°C | 28°C 2008 | 13°C 1994 | 21% |
| Dec 5 | 21°C | 16°C | 25°C 2008 | 14°C 2002 | 22% |
| Dec 6 | 21°C | 16°C | 26°C 1998 | 13°C 2009 | 23% |
| Dec 7 | 20°C | 16°C | 25°C 1997 | 13°C 2001 | 23% |
| Dec 8 | 20°C | 16°C | 24°C 2002 | 13°C 1991 | 23% |
| Dec 9 | 20°C | 16°C | 22°C 1992 | 14°C 2013 | 23% |
| Dec 10 | 20°C | 16°C | 23°C 2010 | 13°C 1991 | 24% |
| Dec 11 | 20°C | 16°C | 24°C 2014 | 12°C 2013 | 24% |
| Dec 12 | 20°C | 15°C | 23°C 2008 | 11°C 2013 | 24% |
| Dec 13 | 20°C | 15°C | 24°C 2003 | 10°C 2013 | 23% |
| Dec 14 | 19°C | 15°C | 23°C 2005 | 11°C 2013 | 23% |
| Dec 15 | 19°C | 15°C | 22°C 2018 | 12°C 2013 | 22% |
| Dec 16 | 19°C | 15°C | 21°C 2018 | 12°C 1992 | 22% |
| Dec 17 | 19°C | 15°C | 23°C 2017 | 12°C 2001 | 22% |
| Dec 18 | 19°C | 15°C | 23°C 2008 | 12°C 2001 | 22% |
| Dec 19 | 19°C | 15°C | 24°C 2008 | 11°C 2006 | 22% |
| Dec 20 | 19°C | 15°C | 24°C 2009 | 11°C 1991 | 22% |
| Dec 21 | 19°C | 15°C | 22°C 1999 | 11°C 1991 | 20% |
| Dec 22 | 19°C | 14°C | 22°C 2017 | 12°C 1991 | 20% |
| Dec 23 | 19°C | 14°C | 21°C 2010 | 11°C 2011 | 19% |
| Dec 24 | 19°C | 14°C | 21°C 1996 | 11°C 2012 | 18% |
| Dec 25 | 19°C | 14°C | 22°C 1996 | 10°C 2003 | 17% |
| Dec 26 | 19°C | 14°C | 24°C 2010 | 11°C 1992 | 18% |
| Dec 27 | 19°C | 14°C | 24°C 2010 | 11°C 1992 | 18% |
| Dec 28 | 18°C | 14°C | 24°C 2010 | 11°C 1992 | 18% |
| Dec 29 | 18°C | 14°C | 21°C 2010 | 10°C 1991 | 19% |
| Dec 30 | 18°C | 14°C | 21°C 1993 | 10°C 1991 | 21% |
| Dec 31 | 18°C | 14°C | 22°C 1999 | 11°C 2014 | 23% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+2).
- December 1
- sunrise 6:39 AM, sunset 4:55 PM
- December 31
- sunrise 6:57 AM, sunset 5:05 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.