Swimming in Ireland in july 2025 Sea temperature by city in july
Do you want to go to the beach in Ireland in july 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in july in Ireland by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Ireland in july 2025
Here, find the average sea temperature in Ireland in july in several coastal cities.
Leinster in july
58°F
min: 56°F / max: 61°F
57°F
min: 55°F / max: 60°F
Dalkey Island
58°F
min: 55°F / max: 60°F
Rosslare
59°F
min: 56°F / max: 61°F
59°F
min: 56°F / max: 62°F
Arklow
58°F
min: 56°F / max: 61°F
Munster in july
61°F
min: 57°F / max: 65°F
59°F
min: 55°F / max: 63°F
Ardmore
61°F
min: 56°F / max: 65°F
Castletownbere
60°F
min: 56°F / max: 65°F
59°F
min: 55°F / max: 63°F
Kilkee
59°F
min: 55°F / max: 63°F
Connacht in july
59°F
min: 55°F / max: 63°F
59°F
min: 54°F / max: 63°F
59°F
min: 55°F / max: 63°F
59°F
min: 54°F / max: 63°F
Aran Islands
59°F
min: 55°F / max: 63°F
Ballycastle
58°F
min: 55°F / max: 61°F
North East Ireland (Ulster) in july
58°F
min: 55°F / max: 61°F
58°F
min: 55°F / max: 61°F
58°F
min: 55°F / max: 61°F
Bundoran
58°F
min: 55°F / max: 61°F
Derrybeg
58°F
min: 55°F / max: 61°F
58°F
min: 55°F / max: 61°F
Where should you go swimming in Ireland in the month of july?
Swimming in Ireland in july is cold (in the best case scenario)
In july in Ireland swimming conditions vary by city. Details below:
Swimming in july in Cork, Ardmore, Castletownbere, Cliffs of Moher, Shannon, Tramore, Waterford, Clonakilty, Cobh, Crosshaven, Dungarvan, Kenmare, Kinsale and Youghal is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 61°F (min: 57°F/max: 65°F).
Forget about swimming in Dublin, Galway, Belmullet, Connemara National Park, Dingle, Dundalk, Dungloe, Killybegs, Letterkenny, Achill Island, Aran Islands, Ballycastle, Bundoran, Dalkey Island, Derrybeg, Donegal, Dunfanaghy, Gleann Cholm Cille, Kilkee, Malin Head, Rosslare, Skellig Islands, Streedagh Point, Valentia, Wexford, Arklow, Balbriggan, Ballina, Ballyshannon, Bray, Buncrana, Dún Laoghaire, Greystones, Killorglin, Laytown, Malahide, Moville, Skerries, Sligo, Tralee, Westport and Wicklow in july! The water temperature is freezing, reaching as low as 56°F (and only 61°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Ireland in july: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in july
Dublin
| July | |||
| Average sea temperature | 58°F | ||
| Minimum sea temperature | 56°F | ||
| Maximum sea temperature | 61°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 3.1in | ||
| Number of days of precipitation | 5 jour(s) (15%) | ||
| Cloud cover | 55% | ||
| Our opinion | freezing swimming |
More information on swimming in Dublin in july
Cork
| July | |||
| Average sea temperature | 61°F | ||
| Minimum sea temperature | 57°F | ||
| Maximum sea temperature | 65°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 4.5in | ||
| Number of days of precipitation | 6 jour(s) (21%) | ||
| Cloud cover | 56% | ||
| Our opinion | cold swimming |
More information on swimming in Cork in july
Galway
| July | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 55°F | ||
| Maximum sea temperature | 63°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 4.8in | ||
| Number of days of precipitation | 8 jour(s) (26%) | ||
| Cloud cover | 65% | ||
| Our opinion | freezing swimming |
More information on swimming in Galway in july
Belmullet
| July | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 63°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 5.9in | ||
| Number of days of precipitation | 10 jour(s) (33%) | ||
| Cloud cover | 62% | ||
| Our opinion | freezing swimming |
More information on swimming in Belmullet in july
Connemara National Park
| July | |||
| Average sea temperature | 59°F | ||
| Minimum sea temperature | 55°F | ||
| Maximum sea temperature | 63°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 54°F | ||
| Precipitation | 4.2in | ||
| Number of days of precipitation | 7 jour(s) (24%) | ||
| Cloud cover | 65% | ||
| Our opinion | freezing swimming |
More information on swimming in Connemara National Park in july
List of coastal cities in Ireland
| Dublin in july | freezing swimming |
| Cork in july | cold swimming |
| Galway in july | freezing swimming |
| Belmullet in july | freezing swimming |
| Connemara National Park in july | freezing swimming |
| Dingle in july | freezing swimming |
| Dundalk in july | freezing swimming |
| Dungloe in july | freezing swimming |
| Killybegs in july | freezing swimming |
| Letterkenny in july | freezing swimming |
| Achill Island in july | freezing swimming |
| Aran Islands in july | freezing swimming |
| Ardmore in july | cold swimming |
| Ballycastle in july | freezing swimming |
| Bundoran in july | freezing swimming |
| Castletownbere in july | cold swimming |
| Dalkey Island in july | freezing swimming |
| Derrybeg in july | freezing swimming |
| Donegal in july | freezing swimming |
| Dunfanaghy in july | freezing swimming |
| Cliffs of Moher in july | cold swimming |
| Gleann Cholm Cille in july | freezing swimming |
| Kilkee in july | freezing swimming |
| Malin Head in july | freezing swimming |
| Rosslare in july | freezing swimming |
| Shannon in july | cold swimming |
| Skellig Islands in july | freezing swimming |
| Streedagh Point in july | freezing swimming |
| Tramore in july | cold swimming |
| Valentia in july | freezing swimming |
| Waterford in july | cold swimming |
| Wexford in july | freezing swimming |
| Arklow in july | freezing swimming |
| Balbriggan in july | freezing swimming |
| Ballina in july | freezing swimming |
| Ballyshannon in july | freezing swimming |
| Bray in july | freezing swimming |
| Buncrana in july | freezing swimming |
| Clonakilty in july | cold swimming |
| Cobh in july | cold swimming |
| Crosshaven in july | cold swimming |
| Dún Laoghaire in july | freezing swimming |
| Dungarvan in july | cold swimming |
| Greystones in july | freezing swimming |
| Kenmare in july | cold swimming |
| Killorglin in july | freezing swimming |
| Kinsale in july | cold swimming |
| Laytown in july | freezing swimming |
| Malahide in july | freezing swimming |
| Moville in july | freezing swimming |
| Skerries in july | freezing swimming |
| Sligo in july | freezing swimming |
| Tralee in july | freezing swimming |
| Westport in july | freezing swimming |
| Wicklow in july | freezing swimming |
| Youghal in july | cold swimming |