Festival Weather Odds

Dublin Marathon: race-day weather at past editions

Dublin Marathon: at 9:00 on race day the temperature averaged 10 °C over 33 editions from 1991 to 2025 (from 4 °C to 16 °C); rain fell during race hours (08:00–14:00) in 6 editions (18%). Source: ERA5 reanalysis (Copernicus), data to 2025.

Data updated: 2 November 2026 · Sources, licences and data

Calculated 3 November 2026 · weather: ERA5 1991–2025 · edition dates checked 2 November 2026

10 °Caverage at 9:00 on race day
6 / 33editions with rain 08–14 h
0 / 33editions with ≥ 20 °C by 14:00
16 °C (2014)warmest race morning–midday

Climate, not a forecast: these are statistics of past weather, not a forecast for the next edition.

Climate of the usual dates

Weather around the usual race date (28 October, ± 3 days) in 1991–2025:

Average daily maximum on these dates: 12.3 °C in 1991–2005, 13.2 °C in 2011–2025.

Weather at past editions

YearDate9:00Max 08–14Rain 08–14
202526 October8 °C11 °C1.0 mm
202427 October8 °C11 °C0.3 mm
202329 October9 °C12 °C2.2 mm
202230 October14 °C15 °C0.4 mm
201927 October5 °C10 °C0.0 mm
201828 October6 °C10 °C0.0 mm
201729 October12 °C13 °C0.0 mm
201630 October11 °C15 °C0.2 mm
201526 October13 °C14 °C0.1 mm
201427 October16 °C16 °C0.0 mm
201328 October10 °C12 °C0.0 mm
201229 October6 °C10 °C0.0 mm
201131 October15 °C15 °C0.1 mm
201025 October4 °C11 °C0.0 mm
200926 October11 °C14 °C0.0 mm
200827 October5 °C9 °C0.0 mm
200729 October8 °C12 °C0.2 mm
200630 October14 °C15 °C0.0 mm
200531 October13 °C14 °C3.5 mm
200425 October10 °C12 °C0.0 mm
200327 October6 °C12 °C0.0 mm
200228 October7 °C11 °C0.0 mm
200129 October10 °C15 °C0.0 mm
200030 October6 °C10 °C3.7 mm
199925 October10 °C14 °C0.0 mm
199826 October8 °C11 °C0.0 mm
199727 October10 °C12 °C0.0 mm
199628 October13 °C14 °C0.9 mm
199530 October14 °C16 °C0.0 mm
199431 October12 °C12 °C0.3 mm
199325 October8 °C10 °C0.0 mm
199226 October4 °C8 °C0.8 mm
199128 October11 °C12 °C0.0 mm

How to read these numbers

Dates and sources

Coordinates: 53.350, -6.260; ERA5 cell centred at 53.25, -6.25 (average ground height of the cell 159 m).