Koesan Weather in December
Average highs run from 5°C on December 1 to 0°C on December 31, and lows from -4°C to -10°C. Normal precipitation for the month is 25 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
- 2°C
- Average low
- -8°C
- Precipitation
- 25 mm
- Reanalysis high
- 14°CDec 3, 2018
- Reanalysis low
- -21°CDec 18, 2014
- Daylight
- 9 h 51 min to 9 h 41 min
- Cloud cover
- 50%
- Humidity
- 82%
- Dew point
- -6°C
- Wind
- 12.6 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 | 5°C | -4°C | 12°C 1994 | -16°C 1996 | 24% |
| Dec 2 | 4°C | -5°C | 11°C 2004 | -14°C 1996 | 22% |
| Dec 3 | 4°C | -5°C | 14°C 2018 | -16°C 1997 | 22% |
| Dec 4 | 4°C | -5°C | 12°C 2002 | -12°C 1993 | 21% |
| Dec 5 | 4°C | -5°C | 10°C 1992 | -15°C 1996 | 20% |
| Dec 6 | 3°C | -6°C | 11°C 1992 | -20°C 1996 | 19% |
| Dec 7 | 3°C | -6°C | 12°C 1992 | -13°C 1996 | 18% |
| Dec 8 | 3°C | -6°C | 9°C 1994 | -16°C 2012 | 18% |
| Dec 9 | 2°C | -7°C | 9°C 2008 | -19°C 2012 | 18% |
| Dec 10 | 2°C | -7°C | 9°C 2008 | -18°C 2012 | 19% |
| Dec 11 | 2°C | -7°C | 11°C 1994 | -17°C 2012 | 18% |
| Dec 12 | 2°C | -7°C | 8°C 2001 | -17°C 2017 | 17% |
| Dec 13 | 2°C | -7°C | 9°C 2015 | -19°C 2005 | 17% |
| Dec 14 | 2°C | -7°C | 7°C 2015 | -17°C 2005 | 17% |
| Dec 15 | 2°C | -7°C | 8°C 1996 | -16°C 2010 | 16% |
| Dec 16 | 2°C | -8°C | 10°C 2019 | -16°C 1994 | 14% |
| Dec 17 | 2°C | -8°C | 8°C 1998 | -19°C 2005 | 14% |
| Dec 18 | 1°C | -8°C | 8°C 1998 | -21°C 2014 | 14% |
| Dec 19 | 1°C | -8°C | 8°C 2004 | -17°C 2012 | 14% |
| Dec 20 | 1°C | -8°C | 10°C 1997 | -16°C 1999 | 14% |
| Dec 21 | 1°C | -8°C | 10°C 2016 | -17°C 1999 | 14% |
| Dec 22 | 1°C | -8°C | 13°C 2016 | -18°C 2005 | 14% |
| Dec 23 | 1°C | -9°C | 7°C 1991 | -17°C 2011 | 14% |
| Dec 24 | 1°C | -9°C | 8°C 1994 | -18°C 2012 | 14% |
| Dec 25 | 1°C | -9°C | 9°C 2006 | -20°C 2010 | 13% |
| Dec 26 | 1°C | -9°C | 11°C 2006 | -20°C 2012 | 13% |
| Dec 27 | 1°C | -9°C | 6°C 2007 | -17°C 2017 | 14% |
| Dec 28 | 1°C | -9°C | 8°C 2007 | -19°C 2018 | 13% |
| Dec 29 | 0°C | -9°C | 6°C 2020 | -21°C 1991 | 13% |
| Dec 30 | 0°C | -10°C | 6°C 2019 | -18°C 1991 | 14% |
| Dec 31 | 0°C | -10°C | 6°C 1996 | -18°C 2012 | 15% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+9).
- December 1
- sunrise 7:22 AM, sunset 5:13 PM
- December 31
- sunrise 7:41 AM, sunset 5:22 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.