When is the best time to visit Ireland?

May to July. Across Ireland's 7 destinations, July averages 87/100 for climate comfort with mean highs of 19°C and 76 mm of rain.

What is the worst month to visit Ireland?

December, averaging 53/100 — mean highs of 9.6°C and 106 mm of rain across the country's destinations.

What is the hottest month in Ireland?

July, with mean daily highs of 19°C averaged across 7 destinations.

What is the wettest month in Ireland?

October, averaging 113 mm of rain.

Best time to visit Ireland

The best time to visit Ireland is May to July, when its 7 destinations average 87/100 for climate comfort — December is the weakest month, at 53/100.

Updated September 2026 · averaged over 7 Ireland destinations · climate normals from ERA5 reanalysis

🇮🇪 Ireland, month by month

best July

Average comfort out of 100 · open a month for where to go in it

Ireland climate comfort by month

Month	Comfort	Avg high	Rain	Pick of the month
January	55	8.7°C	87 mm	Killarney 64
February	59	9.4°C	99 mm	Killarney 66
March	66	10.5°C	92 mm	Killarney 73
April	77	12.8°C	69 mm	Clifden 82
May	84	15.9°C	63 mm	Killarney 90
June	86	17.8°C	71 mm	Cork 89
July	87	19°C	76 mm	Cork 91
August	83	18.9°C	90 mm	Dublin 89
September	77	16.9°C	93 mm	Killarney 81
October	67	14°C	113 mm	Killarney 74
November	60	10.9°C	99 mm	Killarney 68
December	53	9.6°C	106 mm	Killarney 61

Comfort is SeasonMap's 0–100 score, averaged across every Ireland destination in the dataset. Each place is judged through the lens that suits it — beaches on beach weather, ski resorts on snow. Averages from ERA5 reanalysis normals, not forecasts.

All 7 destinations in Ireland

Ireland — FAQ

When is the best time to visit Ireland?: May to July. Across Ireland's 7 destinations, July averages 87/100 for climate comfort with mean highs of 19°C and 76 mm of rain.
What is the worst month to visit Ireland?: December, averaging 53/100 — mean highs of 9.6°C and 106 mm of rain across the country's destinations.
What is the hottest month in Ireland?: July, with mean daily highs of 19°C averaged across 7 destinations.
What is the wettest month in Ireland?: October, averaging 113 mm of rain.