Weather on December 21 in Reykjavik
Historical weather data for December 21 in Reykjavik, Iceland
Avg High2°C (36°F)
Avg Low-3°C (27°F)
Warmest19978°C
Coldest1981-8°C
Based on 55 years of data from REYKJAVIK
About This Date
December 21st in Reykjavik, Iceland typically brings cold winter weather, with average highs around 2°C and lows near -3°C. Over 55 years of records, the warmest December 21st was in 1997 (8°C average), while the coldest was 1981 (-8°C). Rain or other precipitation has occurred on about 36% of December 21st dates historically.
The last decade has been 3.6°F cooler on this date compared to 20-30 years ago.
Planning for December 21st in Reykjavik? Bundle up with warm layers and protect extremities from the cold. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 9°C (48°F) | 4°C (40°F) | 0.23" |
| 2024 | 1°C (34°F) | -4°C (24°F) | -- |
| 2023 | -1°C (31°F) | -6°C (22°F) | -- |
| 2022 | 0°C (32°F) | -3°C (27°F) | -- |
| 2021 | 3°C (38°F) | -1°C (31°F) | -- |
| 2020 | 3°C (37°F) | -2°C (29°F) | -- |
| 2019 | 4°C (40°F) | 0°C (32°F) | -- |
| 2018 | 2°C (36°F) | -2°C (28°F) | -- |
| 2017 | 3°C (37°F) | 1°C (34°F) | -- |
| 2016 | 1°C (34°F) | -4°C (24°F) | -- |
| 2015 | 2°C (35°F) | 1°C (33°F) | -- |
| 2014 | 3°C (38°F) | -4°C (24°F) | -- |
| 2013 | 3°C (38°F) | 2°C (35°F) | -- |
| 2012 | -- | 5°C (41°F) | -- |
| 2011 | 6°C (43°F) | -2°C (28°F) | -- |
| 2010 | -6°C (22°F) | -9°C (16°F) | -- |
| 2009 | -1°C (30°F) | -3°C (26°F) | -- |
| 2008 | 2°C (36°F) | -2°C (29°F) | -- |
| 2007 | 8°C (47°F) | 3°C (38°F) | -- |
| 2006 | 7°C (44°F) | -1°C (31°F) | -- |
| 2005 | 3°C (38°F) | -1°C (31°F) | 0.41" |
| 2004 | 4°C (39°F) | 1°C (34°F) | 0.13" |
| 2003 | -4°C (24°F) | -11°C (13°F) | 0" |
| 2002 | 6°C (42°F) | 2°C (35°F) | 0" |
| 2001 | 7°C (44°F) | -1°C (30°F) | 1.18" |
| 2000 | 6°C (42°F) | 2°C (36°F) | 0" |
| 1999 | 6°C (43°F) | 3°C (37°F) | 0.19" |
| 1998 | 5°C (41°F) | 0°C (32°F) | 1.51" |
| 1997 | 9°C (49°F) | 7°C (44°F) | 0" |
| 1996 | 4°C (39°F) | 2°C (36°F) | 0" |
| 1995 | -3°C (26°F) | -12°C (11°F) | 0.39" |
| 1994 | 8°C (46°F) | -1°C (30°F) | 0.03" |
| 1993 | -5°C (23°F) | -10°C (14°F) | 0.01" |
| 1992 | 3°C (38°F) | -1°C (31°F) | 0.47" |
| 1991 | -4°C (24°F) | -11°C (12°F) | 0" |
| 1990 | 6°C (42°F) | -6°C (21°F) | 1.2" |
| 1989 | -3°C (27°F) | -11°C (12°F) | 0" |
| 1988 | 3°C (37°F) | -2°C (29°F) | 0.38" |
| 1987 | 5°C (41°F) | 1°C (34°F) | 0.27" |
| 1986 | 2°C (35°F) | -3°C (27°F) | 0.07" |
| 1985 | 2°C (35°F) | -3°C (26°F) | 0" |
| 1984 | 1°C (33°F) | -3°C (27°F) | 0.58" |
| 1983 | 2°C (35°F) | -4°C (24°F) | 0" |
| 1982 | -3°C (26°F) | -11°C (13°F) | 0" |
| 1981 | -5°C (23°F) | -12°C (11°F) | 0" |
| 1980 | 1°C (34°F) | -4°C (25°F) | 0" |
| 1979 | 3°C (37°F) | -2°C (28°F) | 0.52" |
| 1978 | -3°C (26°F) | -9°C (16°F) | 0" |
| 1977 | 7°C (45°F) | 1°C (34°F) | 0.06" |
| 1976 | 4°C (40°F) | 2°C (35°F) | 0" |
| 1975 | 4°C (39°F) | 0°C (32°F) | 0.81" |
| 1974 | -6°C (22°F) | -9°C (15°F) | 0" |
| 1973 | -6°C (22°F) | -8°C (17°F) | 0" |
| 1972 | 3°C (38°F) | 1°C (33°F) | 0.65" |
| 1971 | 2°C (35°F) | -2°C (29°F) | 0.45" |