Climate
Weather in Ireland, month by month
Best time to visit
For mild temperatures and less rain, June, July, August are usually the most comfortable months in Ireland (based on recent 2025 averages near Dublin).
Average weather by month
Daytime high / overnight low (Celsius and Fahrenheit), with average monthly rainfall, near Dublin. Tap a month for details.
| Jan | 8.1°C (47°F) / 3.5°C (38°F) · 71 mm |
|---|---|
| Feb | 9.8°C (50°F) / 5.1°C (41°F) · 69 mm |
| Mar | 10.8°C (51°F) / 5.3°C (42°F) · 79 mm |
| Apr | 12°C (54°F) / 6°C (43°F) · 81 mm |
| May | 15.3°C (60°F) / 9°C (48°F) · 67 mm |
| Jun | 18°C (64°F) / 11.6°C (53°F) · 71 mm |
| Jul | 19.5°C (67°F) / 13.3°C (56°F) · 92 mm |
| Aug | 19.5°C (67°F) / 13.2°C (56°F) · 72 mm |
| Sep | 17.1°C (63°F) / 11.6°C (53°F) · 107 mm |
| Oct | 14.8°C (59°F) / 9.9°C (50°F) · 121 mm |
| Nov | 11.2°C (52°F) / 6.9°C (44°F) · 81 mm |
| Dec | 9.5°C (49°F) / 5.5°C (42°F) · 89 mm |
Updated climate normals, 2025
Climate extremes in Ireland
| Warmest month | July · avg high 19.5°C (67°F) |
|---|---|
| Coolest month | January · avg low 3.5°C (38°F) |
| Wettest month | October · ~121 mm |
| Driest month | May · ~67 mm |
Common questions
When is the best time to visit Ireland?
For a balance of comfortable temperatures and lower rainfall, June, July, August tend to be the most pleasant months in Ireland.
What is the hottest month in Ireland?
July is the warmest month in Ireland, with average daytime highs around 19.5°C (67°F).
What is the coldest month in Ireland?
January is the coolest, with average overnight lows near 3.5°C (38°F).
Which month has the most rain in Ireland?
October is typically the wettest month (around 121 mm on average), while May is usually the driest.