Glan Weather in December
Average highs run from 28°C on December 1 to 28°C on December 31, and lows from 23°C to 23°C. Normal precipitation for the month is 121 mm over about 19 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
- 28°C
- Average low
- 23°C
- Precipitation
- 121 mm
- Reanalysis high
- 33°CDec 8, 1997
- Reanalysis low
- 20°CDec 30, 1996
- Daylight
- 11 h 48 min to 11 h 48 min
- Cloud cover
- 69%
- Humidity
- 85%
- Dew point
- 22°C
- Wind
- 10.8 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 | 28°C | 23°C | 32°C 1991 | 22°C 1992 | 68% |
| Dec 2 | 28°C | 23°C | 32°C 1991 | 22°C 1992 | 66% |
| Dec 3 | 28°C | 23°C | 31°C 1991 | 21°C 2009 | 66% |
| Dec 4 | 28°C | 23°C | 31°C 1991 | 21°C 2001 | 66% |
| Dec 5 | 28°C | 23°C | 31°C 1991 | 21°C 2009 | 66% |
| Dec 6 | 28°C | 23°C | 32°C 1991 | 22°C 2002 | 65% |
| Dec 7 | 28°C | 23°C | 32°C 1997 | 21°C 2009 | 64% |
| Dec 8 | 28°C | 23°C | 33°C 1997 | 21°C 2009 | 65% |
| Dec 9 | 28°C | 23°C | 32°C 1997 | 22°C 2014 | 66% |
| Dec 10 | 28°C | 23°C | 31°C 1991 | 21°C 1992 | 66% |
| Dec 11 | 28°C | 23°C | 31°C 1997 | 21°C 2002 | 67% |
| Dec 12 | 28°C | 23°C | 31°C 1991 | 21°C 1992 | 67% |
| Dec 13 | 28°C | 23°C | 31°C 1991 | 21°C 2008 | 66% |
| Dec 14 | 28°C | 23°C | 31°C 1997 | 21°C 1992 | 67% |
| Dec 15 | 28°C | 23°C | 31°C 1997 | 22°C 2012 | 66% |
| Dec 16 | 28°C | 23°C | 32°C 1992 | 21°C 1994 | 66% |
| Dec 17 | 28°C | 23°C | 31°C 1991 | 22°C 2013 | 68% |
| Dec 18 | 28°C | 23°C | 33°C 1991 | 21°C 2001 | 68% |
| Dec 19 | 28°C | 23°C | 32°C 1991 | 22°C 2019 | 66% |
| Dec 20 | 28°C | 23°C | 32°C 1997 | 22°C 1997 | 66% |
| Dec 21 | 28°C | 23°C | 32°C 1997 | 21°C 2016 | 66% |
| Dec 22 | 28°C | 23°C | 32°C 1997 | 21°C 2011 | 66% |
| Dec 23 | 28°C | 23°C | 31°C 1991 | 21°C 1996 | 65% |
| Dec 24 | 28°C | 23°C | 32°C 1997 | 21°C 1996 | 64% |
| Dec 25 | 28°C | 23°C | 32°C 1997 | 21°C 1996 | 64% |
| Dec 26 | 28°C | 23°C | 32°C 1991 | 21°C 2015 | 63% |
| Dec 27 | 28°C | 23°C | 32°C 1991 | 21°C 2003 | 63% |
| Dec 28 | 28°C | 23°C | 31°C 1991 | 21°C 1996 | 62% |
| Dec 29 | 28°C | 23°C | 31°C 1991 | 20°C 1996 | 62% |
| Dec 30 | 28°C | 23°C | 31°C 1994 | 20°C 1996 | 61% |
| Dec 31 | 28°C | 23°C | 31°C 1994 | 21°C 1992 | 61% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+8).
- December 1
- sunrise 5:34 AM, sunset 5:22 PM
- December 31
- sunrise 5:48 AM, sunset 5:36 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.