Dublin Weather in August
In August, Dublin averages a high of 20°C (68°F) and a low of 11°C (52°F), from 55 years of daily records (1971–2026).
20°C
Average high
68°F
11°C
Average low
52°F
31°C
Record high
87°F · August 2, 1990
2°C
Record low
36°F · August 31, 2010
What August Is Like in Dublin
- August 2026 was the 4th warmest August in 55 years of records, 1.4°C (2.5°F) above the long-run average.
- The August heat record, 31°C (87°F) on August 2, 1990, has stood for 36 years.
- August in Dublin has become 1.1°C (2.1°F) warmer on average: the 2012–2026 average against 1970–1989.
- The warmest August in the record was 1995; the coldest was 1986.
At least 1 mm of rain falls on 38% of August days, and the month averages 68 mm in total.
Warmest: 1995 (23.7°C)Latest: 2026 (21.4°C)10-year averageLong-run average (19.8°C)
Look Up a Day in August
See the weather in Dublin on any August date, year by year.
Source: NOAA GHCN-Daily, Dublin Phoenix Park (1971–2026). Averages cover 1971–2026. How we compute this