Best time to visit Dublin
The best months to visit Dublin are July, August and June, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
July, August and June score best for Dublin weather:
- June18° / 9°CJune has long evenings, Bloomsday on June 16, and good light for coastal DART trips.
- July19° / 11°CJuly is mild summer, strong for Howth cliffs, Phoenix Park, and outdoor pub terraces with a rain shell.
- August19° / 11°CAugust stays mild but wetter, so keep Kilmainham Gaol and museums ready around showers.
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By TripSapien Research · Updated May 20, 2026
Dublin weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight | Sea |
|---|---|---|---|---|---|---|
| January | 8° | 2° | 65 | 13 | 8h | 7° |
| February | 9° | 2° | 50 | 10 | 10h | 7° |
| March | 10° | 3° | 55 | 11 | 12h | 9° |
| April | 12° | 4° | 55 | 11 | 14h | 11° |
| May | 15° | 6° | 60 | 11 | 16h | 16° |
| JuneBest weather | 18° | 9° | 65 | 10 | 17h | 17° |
| JulyBest weather | 19° | 11° | 55 | 11 | 16h | 18° |
| AugustBest weather | 19° | 11° | 75 | 12 | 15h | 19° |
| September | 17° | 9° | 60 | 10 | 12h | 15° |
| October | 14° | 7° | 80 | 12 | 10h | 14° |
| November | 10° | 4° | 75 | 12 | 8h | 11° |
| December | 9° | 3° | 75 | 13 | 7h | 10° |
Temperatures in °C. Long-term monthly averages.
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Dublin month by month
January
Dublin in January: 8.2°C high, 2.3°C low, 65mm rain over 13 days, 7.8h daylight. Mild but rainy — flexible plans pay off.
February
Dublin in February: 8.6°C high, 2.1°C low, 50mm rain over 10 days, 9.5h daylight. Mild and dry — shoulder-season sweet spot.
March
Dublin in March: 10.2°C high, 2.7°C low, 55mm rain over 11 days, 11.5h daylight. Mild and dry — shoulder-season sweet spot.
April
Dublin in April: 12.3°C high, 3.9°C low, 55mm rain over 11 days, 13.7h daylight. Mild and dry — shoulder-season sweet spot.
May
Dublin in May: 15°C high, 6.4°C low, 60mm rain over 11 days, 15.6h daylight. Mild and dry — shoulder-season sweet spot.
JuneBest weather
Dublin in June: 17.7°C high, 9°C low, 65mm rain over 10 days, 16.7h daylight. Mild and dry — shoulder-season sweet spot.
JulyBest weather
Dublin in July: 19.4°C high, 11°C low, 55mm rain over 11 days, 16.3h daylight. Mild and dry — shoulder-season sweet spot.
AugustBest weather
Dublin in August: 19.1°C high, 10.9°C low, 75mm rain over 12 days, 14.6h daylight. Mild and dry — shoulder-season sweet spot.
September
Dublin in September: 17°C high, 9.1°C low, 60mm rain over 10 days, 12.4h daylight. Mild and dry — shoulder-season sweet spot.
October
Dublin in October: 13.7°C high, 6.7°C low, 80mm rain over 12 days, 10.2h daylight. Mild and dry — shoulder-season sweet spot.
November
Dublin in November: 10.4°C high, 4.3°C low, 75mm rain over 12 days, 8.3h daylight. Mild and dry — shoulder-season sweet spot.
December
Dublin in December: 8.5°C high, 2.6°C low, 75mm rain over 13 days, 7.3h daylight. Mild but rainy — flexible plans pay off.
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