Nettuno Weather in December
Average highs run from 15°C on December 1 to 13°C on December 31, and lows from 12°C to 9°C. Normal precipitation for the month is 102 mm over about 12 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
- 14°C
- Average low
- 10°C
- Precipitation
- 102 mm
- Reanalysis high
- 19°CDec 1, 2014
- Reanalysis low
- 1°CDec 27, 1996
- Daylight
- 9 h 24 min to 9 h 13 min
- Cloud cover
- 57%
- Humidity
- 76%
- Dew point
- 8°C
- Wind
- 17.6 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 | 15°C | 12°C | 19°C 2014 | 7°C 1996 | 46% |
| Dec 2 | 15°C | 12°C | 18°C 2004 | 6°C 1996 | 46% |
| Dec 3 | 15°C | 12°C | 18°C 1993 | 7°C 1996 | 48% |
| Dec 4 | 15°C | 11°C | 18°C 2003 | 7°C 1995 | 48% |
| Dec 5 | 15°C | 11°C | 18°C 2006 | 6°C 2010 | 47% |
| Dec 6 | 15°C | 11°C | 18°C 2006 | 5°C 1991 | 46% |
| Dec 7 | 15°C | 11°C | 18°C 2004 | 5°C 1991 | 45% |
| Dec 8 | 15°C | 11°C | 18°C 2006 | 5°C 1998 | 45% |
| Dec 9 | 15°C | 11°C | 17°C 2004 | 3°C 1991 | 46% |
| Dec 10 | 14°C | 11°C | 17°C 2004 | 4°C 1991 | 45% |
| Dec 11 | 14°C | 11°C | 17°C 2004 | 6°C 1991 | 44% |
| Dec 12 | 14°C | 10°C | 17°C 2003 | 6°C 1991 | 43% |
| Dec 13 | 14°C | 10°C | 17°C 2003 | 7°C 2001 | 44% |
| Dec 14 | 14°C | 10°C | 17°C 2011 | 5°C 2010 | 43% |
| Dec 15 | 14°C | 10°C | 17°C 2006 | 4°C 2007 | 41% |
| Dec 16 | 14°C | 10°C | 17°C 2019 | 2°C 2010 | 40% |
| Dec 17 | 14°C | 10°C | 18°C 2019 | 2°C 2010 | 40% |
| Dec 18 | 14°C | 10°C | 18°C 2019 | 4°C 2001 | 38% |
| Dec 19 | 14°C | 10°C | 16°C 1997 | 5°C 2005 | 38% |
| Dec 20 | 14°C | 10°C | 16°C 1997 | 4°C 2009 | 38% |
| Dec 21 | 14°C | 10°C | 18°C 2019 | 5°C 1999 | 38% |
| Dec 22 | 13°C | 10°C | 17°C 2019 | 4°C 1999 | 38% |
| Dec 23 | 13°C | 10°C | 17°C 2010 | 5°C 1998 | 37% |
| Dec 24 | 13°C | 10°C | 16°C 2009 | 4°C 2001 | 36% |
| Dec 25 | 13°C | 9°C | 16°C 2009 | 3°C 2001 | 35% |
| Dec 26 | 13°C | 9°C | 16°C 1995 | 2°C 1996 | 36% |
| Dec 27 | 13°C | 9°C | 15°C 2000 | 1°C 1996 | 36% |
| Dec 28 | 13°C | 9°C | 15°C 2012 | 2°C 1996 | 36% |
| Dec 29 | 13°C | 9°C | 15°C 1994 | 5°C 1992 | 35% |
| Dec 30 | 13°C | 9°C | 16°C 2009 | 3°C 2014 | 36% |
| Dec 31 | 13°C | 9°C | 16°C 1994 | 2°C 2014 | 35% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- December 1
- sunrise 7:16 AM, sunset 4:40 PM
- December 31
- sunrise 7:36 AM, sunset 4:49 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.