Weather on September 20 in Dublin
Historical weather data for September 20 in Dublin, Ireland
Based on 55 years of data from DUBLIN PHOENIX PARK
About This Date
September 20th in Dublin, Ireland typically brings mild fall weather, with average highs around 17°C and lows near 9°C. Over 55 years of records, the warmest September 20th was in 2008 (17°C average), while the coldest was 1983 (10°C) — a 13°F range across recorded history. Rain or other precipitation has occurred on about 51% of September 20th dates historically, with the wettest September 20th recording 2.69" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 20th in Dublin? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 13°C (56°F) | 10°C (50°F) | 0.02" |
| 2024 | 16°C (61°F) | 9°C (48°F) | 0" |
| 2023 | 17°C (63°F) | 13°C (56°F) | 0.09" |
| 2022 | 20°C (68°F) | 9°C (49°F) | 0" |
| 2021 | 19°C (67°F) | 8°C (46°F) | 0" |
| 2020 | 16°C (60°F) | 12°C (54°F) | 0.01" |
| 2019 | 19°C (67°F) | 8°C (47°F) | 0" |
| 2018 | 12°C (54°F) | 8°C (46°F) | 1.53" |
| 2017 | 18°C (65°F) | 12°C (53°F) | 1.46" |
| 2016 | 17°C (62°F) | 8°C (46°F) | 0" |
| 2015 | 17°C (63°F) | 10°C (50°F) | 0.58" |
| 2014 | 18°C (64°F) | 13°C (56°F) | 0" |
| 2013 | 17°C (63°F) | 8°C (47°F) | 0" |
| 2012 | 15°C (59°F) | 10°C (50°F) | 0" |
| 2011 | 14°C (57°F) | 8°C (47°F) | 0.08" |
| 2010 | 19°C (67°F) | -- | 0" |
| 2009 | 17°C (62°F) | 4°C (40°F) | -- |
| 2008 | 21°C (70°F) | 13°C (56°F) | -- |
| 2007 | 18°C (64°F) | 12°C (53°F) | 0.15" |
| 2006 | -- | 14°C (58°F) | 0" |
| 2005 | 18°C (65°F) | 8°C (47°F) | 0" |
| 2004 | 16°C (60°F) | 11°C (52°F) | 0.02" |
| 2003 | 14°C (58°F) | 11°C (52°F) | 0.02" |
| 2002 | 17°C (63°F) | 5°C (41°F) | 0" |
| 2001 | 17°C (63°F) | 8°C (47°F) | 0" |
| 2000 | 15°C (59°F) | 8°C (46°F) | 0.04" |
| 1999 | 15°C (59°F) | 12°C (53°F) | 2.15" |
| 1998 | 24°C (75°F) | 8°C (46°F) | 0" |
| 1997 | 17°C (62°F) | 13°C (55°F) | 0" |
| 1996 | 16°C (61°F) | 11°C (51°F) | 0" |
| 1995 | 18°C (65°F) | 8°C (47°F) | 0" |
| 1994 | 14°C (58°F) | 7°C (45°F) | 0.13" |
| 1993 | 19°C (67°F) | 11°C (52°F) | 0" |
| 1992 | 16°C (61°F) | 8°C (47°F) | 0" |
| 1991 | 18°C (65°F) | 5°C (41°F) | 0" |
| 1990 | 15°C (59°F) | 8°C (46°F) | 0.03" |
| 1989 | 21°C (70°F) | 13°C (55°F) | 0.61" |
| 1988 | 17°C (62°F) | 9°C (49°F) | 0" |
| 1987 | 21°C (69°F) | 11°C (51°F) | 0.07" |
| 1986 | 15°C (59°F) | 8°C (46°F) | 0" |
| 1985 | 17°C (62°F) | 5°C (41°F) | 0.52" |
| 1984 | 16°C (61°F) | 3°C (38°F) | 0.34" |
| 1983 | 13°C (55°F) | 7°C (45°F) | 0.24" |
| 1982 | 18°C (64°F) | 10°C (50°F) | 0.23" |
| 1981 | 16°C (61°F) | 7°C (45°F) | 0.13" |
| 1980 | 18°C (65°F) | 9°C (49°F) | 2.69" |
| 1979 | 16°C (60°F) | 7°C (44°F) | 0.02" |
| 1978 | 18°C (65°F) | 9°C (49°F) | 0" |
| 1977 | 12°C (54°F) | 9°C (48°F) | 0" |
| 1976 | 19°C (67°F) | 7°C (45°F) | 0.94" |
| 1975 | 17°C (62°F) | 8°C (46°F) | 0.01" |
| 1974 | 16°C (60°F) | 7°C (44°F) | 0.05" |
| 1973 | 17°C (62°F) | 6°C (42°F) | 0.11" |
| 1972 | 17°C (63°F) | 5°C (41°F) | 0.09" |
| 1971 | 19°C (66°F) | 11°C (51°F) | 0" |