Weather on September 18 in Dublin
Historical weather data for September 18 in Dublin, Ireland
Based on 55 years of data from DUBLIN PHOENIX PARK
About This Date
September 18th in Dublin, Ireland typically brings mild fall weather, with average highs around 17°C and lows near 8°C. Over 55 years of records, the warmest September 18th was in 2018 (18°C average), while the coldest was 1986 (8°C) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 45% of September 18th dates historically, with the wettest September 18th recording 2.36" 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 18th in Dublin? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 20°C (68°F) | 12°C (53°F) | 0.56" |
| 2024 | 20°C (68°F) | 8°C (46°F) | 0.01" |
| 2023 | 18°C (64°F) | 12°C (53°F) | 0.34" |
| 2022 | 19°C (66°F) | 7°C (45°F) | 0" |
| 2021 | 18°C (65°F) | 11°C (51°F) | 0" |
| 2020 | 16°C (60°F) | 9°C (48°F) | 0" |
| 2019 | 21°C (69°F) | 5°C (41°F) | 0" |
| 2018 | 22°C (71°F) | 14°C (58°F) | 0.04" |
| 2017 | 17°C (63°F) | 6°C (42°F) | 0" |
| 2016 | 17°C (62°F) | 9°C (48°F) | 0.3" |
| 2015 | 16°C (61°F) | 9°C (49°F) | 0" |
| 2014 | 18°C (65°F) | 12°C (53°F) | 0.03" |
| 2013 | 15°C (59°F) | 8°C (46°F) | 0.28" |
| 2012 | 14°C (57°F) | 7°C (44°F) | -- |
| 2011 | 15°C (59°F) | -- | 0.3" |
| 2010 | -- | 4°C (39°F) | 0.3" |
| 2009 | 16°C (60°F) | 6°C (43°F) | -- |
| 2008 | -- | 7°C (44°F) | -- |
| 2007 | 16°C (60°F) | 2°C (36°F) | 0" |
| 2006 | 17°C (63°F) | 10°C (50°F) | 0.61" |
| 2005 | 18°C (64°F) | 11°C (51°F) | 0" |
| 2004 | 17°C (62°F) | 11°C (51°F) | 0.15" |
| 2003 | 21°C (70°F) | 14°C (57°F) | 1.01" |
| 2002 | 18°C (64°F) | 13°C (55°F) | 0" |
| 2001 | 16°C (60°F) | 3°C (37°F) | 0" |
| 2000 | 16°C (61°F) | 7°C (44°F) | 0" |
| 1999 | 18°C (64°F) | 10°C (50°F) | 2.36" |
| 1998 | 21°C (70°F) | 9°C (48°F) | 0" |
| 1997 | 16°C (61°F) | 11°C (52°F) | 0" |
| 1996 | 17°C (62°F) | 12°C (53°F) | 0" |
| 1995 | 18°C (64°F) | 12°C (53°F) | 0" |
| 1994 | 14°C (57°F) | 4°C (40°F) | 1.21" |
| 1993 | 17°C (62°F) | 6°C (43°F) | 0.59" |
| 1992 | 19°C (66°F) | 13°C (56°F) | 0" |
| 1991 | 18°C (64°F) | 10°C (50°F) | 0" |
| 1990 | 17°C (63°F) | 10°C (50°F) | 0.47" |
| 1989 | 21°C (69°F) | 12°C (53°F) | 0.01" |
| 1988 | 13°C (55°F) | 5°C (41°F) | 0" |
| 1987 | 17°C (62°F) | 6°C (43°F) | 0" |
| 1986 | 14°C (57°F) | 2°C (35°F) | 0" |
| 1985 | 18°C (64°F) | 12°C (54°F) | 0.47" |
| 1984 | 17°C (62°F) | 7°C (44°F) | 0.01" |
| 1983 | 16°C (60°F) | 8°C (47°F) | 0.34" |
| 1982 | 18°C (64°F) | 11°C (52°F) | 0.13" |
| 1981 | 17°C (62°F) | 9°C (49°F) | 0.1" |
| 1980 | 17°C (63°F) | 12°C (53°F) | 0.42" |
| 1979 | 16°C (61°F) | 12°C (53°F) | 0" |
| 1978 | 15°C (59°F) | 6°C (43°F) | 0.05" |
| 1977 | 14°C (58°F) | 8°C (47°F) | 0" |
| 1976 | 17°C (62°F) | 7°C (44°F) | 0" |
| 1975 | 16°C (61°F) | 9°C (49°F) | 0" |
| 1974 | 16°C (60°F) | 3°C (38°F) | 0" |
| 1973 | 15°C (59°F) | 8°C (46°F) | 1.65" |
| 1972 | 13°C (56°F) | 4°C (39°F) | 0" |
| 1971 | 20°C (68°F) | 8°C (46°F) | 0" |