Weather on May 21 in Dublin
Historical weather data for May 21 in Dublin, Ireland
Based on 56 years of data from DUBLIN PHOENIX PARK
About This Date
May 21st in Dublin, Ireland typically brings mild spring weather, with average highs around 16°C and lows near 7°C. Over 56 years of records, the warmest May 21st was in 1989 (17°C average), while the coldest was 1979 (8°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 41% of May 21st dates historically, with the wettest May 21st recording 0.79" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for May 21st in Dublin? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 19°C (67°F) | 13°C (55°F) | -- |
| 2025 | 22°C (72°F) | 8°C (46°F) | 0 mm |
| 2024 | 18°C (65°F) | 9°C (49°F) | 1 mm |
| 2023 | 18°C (64°F) | 9°C (49°F) | 0 mm |
| 2022 | 18°C (65°F) | 10°C (50°F) | 0 mm |
| 2021 | 12°C (53°F) | 8°C (47°F) | 4 mm |
| 2020 | 18°C (65°F) | 11°C (51°F) | 2 mm |
| 2019 | 17°C (63°F) | 3°C (38°F) | 0 mm |
| 2018 | 18°C (64°F) | 11°C (51°F) | 0 mm |
| 2017 | 17°C (62°F) | 9°C (48°F) | 0 mm |
| 2016 | 18°C (64°F) | 12°C (53°F) | 12 mm |
| 2015 | 18°C (64°F) | 5°C (41°F) | 0 mm |
| 2014 | 18°C (65°F) | 6°C (43°F) | 0 mm |
| 2013 | 18°C (64°F) | 8°C (47°F) | 0 mm |
| 2012 | 16°C (61°F) | -- | -- |
| 2011 | -- | 4°C (39°F) | -- |
| 2010 | 22°C (71°F) | 9°C (49°F) | 0 mm |
| 2009 | 17°C (62°F) | 6°C (42°F) | 1 mm |
| 2008 | 16°C (60°F) | -- | -- |
| 2007 | -- | 3°C (37°F) | -- |
| 2006 | -- | 6°C (43°F) | 20 mm |
| 2005 | 16°C (60°F) | 5°C (41°F) | 0 mm |
| 2004 | 14°C (58°F) | 2°C (36°F) | 0 mm |
| 2003 | 15°C (59°F) | 7°C (44°F) | 8 mm |
| 2002 | 13°C (56°F) | 7°C (44°F) | 8 mm |
| 2001 | 19°C (67°F) | 7°C (45°F) | 0 mm |
| 2000 | 17°C (63°F) | 6°C (43°F) | 0 mm |
| 1999 | 16°C (61°F) | 12°C (53°F) | 0 mm |
| 1998 | 17°C (62°F) | 11°C (51°F) | 0 mm |
| 1997 | 13°C (55°F) | 9°C (49°F) | 0 mm |
| 1996 | 16°C (60°F) | 4°C (39°F) | 2 mm |
| 1995 | 14°C (58°F) | 7°C (44°F) | 2 mm |
| 1994 | 12°C (53°F) | 8°C (46°F) | 0 mm |
| 1993 | 18°C (64°F) | 2°C (35°F) | 5 mm |
| 1992 | 16°C (61°F) | 4°C (40°F) | 0 mm |
| 1991 | 21°C (70°F) | 11°C (51°F) | 0 mm |
| 1990 | 17°C (62°F) | 6°C (42°F) | 0 mm |
| 1989 | 22°C (71°F) | 12°C (53°F) | 0 mm |
| 1988 | 16°C (60°F) | 6°C (43°F) | 0 mm |
| 1987 | 18°C (64°F) | 4°C (39°F) | 0 mm |
| 1986 | 13°C (55°F) | 8°C (46°F) | 7 mm |
| 1985 | 14°C (58°F) | 8°C (46°F) | 0 mm |
| 1984 | 15°C (59°F) | 2°C (36°F) | 0 mm |
| 1983 | 12°C (53°F) | 6°C (42°F) | 9 mm |
| 1982 | 14°C (58°F) | 7°C (45°F) | 2 mm |
| 1981 | 14°C (58°F) | 7°C (44°F) | 1 mm |
| 1980 | 14°C (57°F) | 9°C (48°F) | 0 mm |
| 1979 | 12°C (53°F) | 4°C (39°F) | 6 mm |
| 1978 | 16°C (61°F) | 5°C (41°F) | 0 mm |
| 1977 | 18°C (64°F) | 7°C (44°F) | 0 mm |
| 1976 | 15°C (59°F) | 4°C (39°F) | 1 mm |
| 1975 | 17°C (62°F) | 4°C (40°F) | 0 mm |
| 1974 | 17°C (63°F) | 8°C (47°F) | 1 mm |
| 1973 | 18°C (64°F) | 9°C (49°F) | 0 mm |
| 1972 | 14°C (57°F) | 6°C (43°F) | 2 mm |
| 1971 | 16°C (60°F) | 4°C (39°F) | 0 mm |