Hafnarfjörður climate

Hafnarfjörður Weather in December

NASA POWER reanalysis for the half-degree grid cell around Hafnarfjörður, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 2°C on December 1 to 2°C on December 31, and lows from -1°C to -2°C. Normal precipitation for the month is 171 mm over about 22 wet days.

December day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Hafnarfjörður, in °C, with the record for each date.-15-10-50510151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

December at a glance

Average high
2°C
Average low
-2°C
Precipitation
171 mm
Reanalysis high
10°CDec 15, 1997
Reanalysis low
-12°CDec 21, 1993
Daylight
5 h 03 min to 4 h 23 min
Cloud cover
72%
Humidity
91%
Dew point
-1°C
Wind
24.1 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Dec 12°C-1°C7°C 2013-7°C 200968%
Dec 22°C-1°C9°C 2019-6°C 200970%
Dec 32°C-1°C7°C 2019-8°C 201871%
Dec 42°C-1°C8°C 1995-8°C 201372%
Dec 52°C-1°C9°C 2002-12°C 201373%
Dec 62°C-1°C8°C 1998-11°C 201373%
Dec 72°C-1°C8°C 1998-11°C 201172%
Dec 82°C-1°C6°C 1998-9°C 199371%
Dec 92°C-1°C7°C 2001-11°C 201170%
Dec 102°C-1°C8°C 2001-10°C 201170%
Dec 112°C-1°C8°C 2009-9°C 201770%
Dec 122°C-1°C8°C 2009-10°C 199670%
Dec 132°C-1°C8°C 2009-8°C 201970%
Dec 142°C-1°C9°C 1997-11°C 201969%
Dec 152°C-1°C10°C 1997-12°C 201470%
Dec 162°C-1°C7°C 1997-12°C 201469%
Dec 172°C-2°C9°C 2007-9°C 199968%
Dec 182°C-2°C8°C 2007-12°C 199968%
Dec 192°C-2°C8°C 2007-10°C 199268%
Dec 202°C-2°C9°C 2006-9°C 199167%
Dec 212°C-2°C8°C 1997-12°C 199366%
Dec 222°C-2°C8°C 2006-12°C 199366%
Dec 232°C-2°C7°C 2006-11°C 200467%
Dec 242°C-2°C8°C 2006-8°C 200468%
Dec 252°C-2°C8°C 2005-11°C 201567%
Dec 262°C-2°C7°C 2010-7°C 199468%
Dec 272°C-2°C8°C 2016-9°C 200167%
Dec 282°C-2°C7°C 2006-9°C 200066%
Dec 292°C-2°C6°C 2006-11°C 201766%
Dec 301°C-2°C7°C 1991-11°C 200066%
Dec 312°C-2°C6°C 1999-9°C 200067%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Hafnarfjörður, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT).

December 1
sunrise 10:45 AM, sunset 3:48 PM
December 31
sunrise 11:19 AM, sunset 3:42 PM

Every day of December: sun and moon

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.