Tromsø Weather in December
Average highs run from -3°C on December 1 to -5°C on December 31, and lows from -7°C to -10°C. Normal precipitation for the month is 130 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
- -3°C
- Average low
- -8°C
- Precipitation
- 130 mm
- Reanalysis high
- 6°CDec 1, 1998
- Reanalysis low
- -23°CDec 23, 2009
- Daylight
- 0 h 00 min to 0 h 00 min
- Cloud cover
- 85%
- Humidity
- 96%
- Dew point
- -7°C
- Wind
- 14.4 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 | -3°C | -7°C | 6°C 1998 | -18°C 2012 | 62% |
| Dec 2 | -3°C | -7°C | 3°C 2003 | -18°C 2012 | 62% |
| Dec 3 | -3°C | -7°C | 3°C 2003 | -16°C 2004 | 62% |
| Dec 4 | -3°C | -7°C | 3°C 2003 | -14°C 2002 | 63% |
| Dec 5 | -3°C | -7°C | 3°C 2014 | -17°C 2005 | 64% |
| Dec 6 | -3°C | -7°C | 2°C 2000 | -18°C 2013 | 64% |
| Dec 7 | -3°C | -7°C | 2°C 1991 | -19°C 1999 | 64% |
| Dec 8 | -3°C | -7°C | 2°C 1991 | -18°C 1999 | 63% |
| Dec 9 | -3°C | -7°C | 2°C 1998 | -20°C 2013 | 64% |
| Dec 10 | -3°C | -8°C | 4°C 1998 | -18°C 1999 | 63% |
| Dec 11 | -3°C | -8°C | 4°C 1998 | -16°C 1996 | 65% |
| Dec 12 | -3°C | -8°C | 4°C 2001 | -18°C 1996 | 65% |
| Dec 13 | -3°C | -8°C | 2°C 2006 | -17°C 1996 | 65% |
| Dec 14 | -3°C | -8°C | 3°C 2001 | -17°C 2009 | 66% |
| Dec 15 | -3°C | -8°C | 5°C 2001 | -19°C 2009 | 66% |
| Dec 16 | -3°C | -8°C | 5°C 1997 | -17°C 1993 | 66% |
| Dec 17 | -3°C | -8°C | 5°C 2007 | -21°C 1999 | 66% |
| Dec 18 | -3°C | -8°C | 4°C 2007 | -21°C 2010 | 67% |
| Dec 19 | -4°C | -8°C | 4°C 2007 | -21°C 2010 | 66% |
| Dec 20 | -4°C | -9°C | 2°C 2016 | -21°C 2010 | 66% |
| Dec 21 | -4°C | -9°C | 4°C 2006 | -18°C 2010 | 65% |
| Dec 22 | -4°C | -9°C | 4°C 2006 | -22°C 1995 | 65% |
| Dec 23 | -4°C | -9°C | 1°C 2007 | -23°C 2009 | 65% |
| Dec 24 | -4°C | -9°C | 3°C 2007 | -21°C 2009 | 64% |
| Dec 25 | -4°C | -10°C | 2°C 2006 | -21°C 2009 | 64% |
| Dec 26 | -4°C | -10°C | 2°C 2006 | -20°C 2009 | 62% |
| Dec 27 | -4°C | -10°C | 2°C 2007 | -22°C 2000 | 62% |
| Dec 28 | -4°C | -10°C | 2°C 2007 | -21°C 2000 | 61% |
| Dec 29 | -5°C | -10°C | 2°C 2008 | -22°C 2009 | 59% |
| Dec 30 | -5°C | -10°C | 2°C 2008 | -22°C 1995 | 59% |
| Dec 31 | -5°C | -10°C | 1°C 1992 | -20°C 2002 | 59% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (GMT+1).
- December 1
- sunrise , sunset
- December 31
- sunrise , sunset
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.