SeasonMapIreland in January
January is one of Ireland's weaker months (rank 11 of 12): its 7 destinations average 56/100, led by Killarney at 66 — 9°C and 13 rainy days — while Dublin is cooler at 4°C and scores 58.
#11 of 12 months for Ireland · 7 destinations · updated September 2026 · climate normals from ERA5 reanalysis
Where in Ireland in January
| # | Place | Type | Feels-like high | Rain | Comfort | At its best |
|---|---|---|---|---|---|---|
| 1 | Killarney | Trekking hub | 9°C | 86 mm · 13 days | 66 tier C | — |
| 2 | Cork | City | 9°C | 52 mm · 10 days | 59 tier D | — |
| 3 | Clifden | Trekking hub | 9°C | 114 mm · 17 days | 58 tier D | — |
| 4 | Dublin | City | 4°C | 55 mm · 11 days | 58 tier D | — |
| 5 | Kilkenny | City | 8°C | 51 mm · 9 days | 57 tier D | — |
| 6 | Galway | City | 8°C | 81 mm · 13 days | 55 tier D | — |
| 7 | Dingle | Beach | 9°C | 89 mm · 15 days | 41 tier F | — |
Comfort is SeasonMap's 0–100 score; each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. "At its best" means January is one of that place's own top three months. Feels-like highs fold in humidity, wind and sun.