Weather on December 21 in Dublin
Historical weather data for December 21 in Dublin, Ireland
Based on 55 years of data from DUBLIN PHOENIX PARK
About This Date
December 21st in Dublin, Ireland typically brings chilly winter weather, with average highs around 9°C and lows near 3°C. Over 55 years of records, the warmest December 21st was in 1974 (12°C average), while the coldest was 1978 (-1°C) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 76% of December 21st dates historically, with the wettest December 21st recording 5.21" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.
Planning for December 21st in Dublin? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2025 | 11°C (51°F) | 3°C (37°F) | -- |
| 2024 | 11°C (52°F) | 6°C (43°F) | 3 mm |
| 2023 | 12°C (53°F) | 9°C (49°F) | 5 mm |
| 2022 | 8°C (47°F) | 5°C (41°F) | 7 mm |
| 2021 | 7°C (44°F) | 6°C (43°F) | 12 mm |
| 2020 | 9°C (49°F) | 3°C (37°F) | 5 mm |
| 2019 | 6°C (42°F) | 1°C (33°F) | 0 mm |
| 2018 | 9°C (49°F) | 6°C (43°F) | 2 mm |
| 2017 | 12°C (54°F) | 10°C (50°F) | 5 mm |
| 2016 | 7°C (45°F) | -2°C (28°F) | 1 mm |
| 2015 | 14°C (57°F) | 5°C (41°F) | 12 mm |
| 2014 | 13°C (56°F) | 4°C (40°F) | 1 mm |
| 2013 | 9°C (49°F) | 7°C (44°F) | 23 mm |
| 2012 | 8°C (47°F) | -- | 1 mm |
| 2011 | -- | 7°C (44°F) | -- |
| 2010 | -- | -11°C (13°F) | 132 mm |
| 2009 | 2°C (36°F) | -1°C (30°F) | 0 mm |
| 2008 | 12°C (54°F) | 10°C (50°F) | 3 mm |
| 2007 | 9°C (49°F) | -5°C (23°F) | 0 mm |
| 2006 | -- | 1°C (33°F) | 0 mm |
| 2005 | 10°C (50°F) | 6°C (42°F) | 1 mm |
| 2004 | 11°C (51°F) | 1°C (33°F) | 19 mm |
| 2003 | 5°C (41°F) | 2°C (35°F) | 0 mm |
| 2002 | 11°C (51°F) | 7°C (44°F) | 11 mm |
| 2001 | 8°C (47°F) | 1°C (33°F) | 1 mm |
| 2000 | 9°C (48°F) | 6°C (43°F) | 0 mm |
| 1999 | 12°C (53°F) | 2°C (35°F) | 3 mm |
| 1998 | 7°C (44°F) | -4°C (25°F) | 3 mm |
| 1997 | 9°C (49°F) | 3°C (37°F) | 7 mm |
| 1996 | 6°C (43°F) | 3°C (37°F) | 0 mm |
| 1995 | 10°C (50°F) | 2°C (35°F) | 37 mm |
| 1994 | 6°C (43°F) | 1°C (33°F) | 0 mm |
| 1993 | 6°C (43°F) | -2°C (28°F) | 13 mm |
| 1992 | 6°C (43°F) | -3°C (26°F) | 20 mm |
| 1991 | 13°C (56°F) | 1°C (33°F) | 5 mm |
| 1990 | 12°C (54°F) | 7°C (44°F) | 1 mm |
| 1989 | 9°C (49°F) | 6°C (43°F) | 1 mm |
| 1988 | 11°C (52°F) | 8°C (46°F) | 2 mm |
| 1987 | 13°C (55°F) | 4°C (39°F) | 0 mm |
| 1986 | 4°C (40°F) | -2°C (28°F) | 0 mm |
| 1985 | 9°C (48°F) | 7°C (45°F) | 0 mm |
| 1984 | 11°C (51°F) | 1°C (33°F) | 1 mm |
| 1983 | 8°C (46°F) | 4°C (39°F) | 9 mm |
| 1982 | 4°C (40°F) | 2°C (36°F) | 1 mm |
| 1981 | 5°C (41°F) | 1°C (33°F) | 55 mm |
| 1980 | 9°C (48°F) | 3°C (37°F) | 1 mm |
| 1979 | 4°C (40°F) | 0°C (32°F) | 3 mm |
| 1978 | 5°C (41°F) | -6°C (22°F) | 11 mm |
| 1977 | 9°C (49°F) | 5°C (41°F) | 11 mm |
| 1976 | 6°C (43°F) | 1°C (33°F) | 3 mm |
| 1975 | 9°C (48°F) | 6°C (42°F) | 0 mm |
| 1974 | 12°C (54°F) | 11°C (52°F) | 2 mm |
| 1973 | 7°C (44°F) | 5°C (41°F) | 5 mm |
| 1972 | 9°C (48°F) | -1°C (31°F) | 0 mm |
| 1971 | 9°C (49°F) | 9°C (48°F) | 0 mm |