The best time to visit Ireland
The best time to visit Ireland for warm, sunny weather is June to September, when its destinations average a Sunshine Score of 54/100 with daytime highs around 17°C / 63°F.
Ireland by month, averaged across 4 destinations from long-term climate normals — the best stretch is highlighted.
| Month | Sunshine Score | Avg day high | Rain | Sea | For a trip |
|---|---|---|---|---|---|
| January | 0 | 7° / 45°F | 108 mm | 8° | Poor |
| February | 2 | 8° / 46°F | 84 mm | 9° | Poor |
| March | 6 | 9° / 48°F | 81 mm | 9° | Poor |
| April | 23 | 12° / 54°F | 71 mm | 10° | Poor |
| May | 38 | 14° / 57°F | 80 mm | 14° | Mixed |
| June | 52 | 17° / 63°F | 87 mm | 15° | Good |
| July | 58 | 18° / 64°F | 95 mm | 15° | Very good |
| August | 57 | 18° / 64°F | 102 mm | 15° | Very good |
| September | 48 | 16° / 61°F | 87 mm | 16° | Good |
| October | 28 | 13° / 55°F | 111 mm | 14° | Mixed |
| November | 11 | 10° / 50°F | 120 mm | 13° | Poor |
| December | 2 | 8° / 46°F | 116 mm | 10° | Poor |
When to go — and when to think twice
Best overall: June to September — Ireland's warmest, most reliable stretch (Sunshine Score 54/100, ~17°C / 63°F days). Hottest: July, ~18°C / 64°F. Wettest: November (120 mm) — pack for showers.
Where to base yourself for sunshine: Cork (1,693 h/yr), Dublin (1,488 h/yr), Shannon (1,468 h/yr). See where it's sunniest in Ireland month by month, the hottest places in Ireland, or every Ireland destination with a full climate card.