Swimming in Ireland in october 2025 Sea temperature by city in october

Do you want to go to the beach in Ireland in october 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 october in Ireland by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Ireland in october 2025

Here, find the average sea temperature in Ireland in october in several coastal cities.

Leinster in october

on average:

58°F

min: 56°F / max: 60°F

on average:

58°F

min: 56°F / max: 59°F

Dalkey Island

on average:

58°F

min: 56°F / max: 59°F

Rosslare

on average:

58°F

min: 57°F / max: 61°F

on average:

58°F

min: 56°F / max: 60°F

Arklow

on average:

58°F

min: 56°F / max: 60°F

Munster in october

on average:

58°F

min: 55°F / max: 61°F

on average:

58°F

min: 54°F / max: 60°F

Ardmore

on average:

58°F

min: 55°F / max: 61°F

Castletownbere

on average:

58°F

min: 55°F / max: 61°F

on average:

58°F

min: 54°F / max: 60°F

Kilkee

on average:

58°F

min: 54°F / max: 60°F

Connacht in october

on average:

57°F

min: 55°F / max: 60°F

on average:

57°F

min: 54°F / max: 60°F

on average:

57°F

min: 54°F / max: 60°F

on average:

57°F

min: 54°F / max: 60°F

Aran Islands

on average:

57°F

min: 54°F / max: 60°F

Ballycastle

on average:

56°F

min: 54°F / max: 58°F

North East Ireland (Ulster) in october

on average:

56°F

min: 54°F / max: 59°F

on average:

56°F

min: 54°F / max: 59°F

on average:

56°F

min: 54°F / max: 59°F

Bundoran

on average:

57°F

min: 54°F / max: 59°F

Derrybeg

on average:

56°F

min: 54°F / max: 58°F

on average:

56°F

min: 54°F / max: 58°F

Where should you go swimming in Ireland in the month of october?

Swimming in Ireland in october is freezing

In october in Ireland swimming conditions are generally the same everywhere.

Forget about swimming in Dublin, Cork, Galway, Belmullet, Connemara National Park, Dingle, Dundalk, Dungloe, Killybegs, Letterkenny, Achill Island, Aran Islands, Ardmore, Ballycastle, Bundoran, Castletownbere, Dalkey Island, Derrybeg, Donegal, Dunfanaghy, Cliffs of Moher, Gleann Cholm Cille, Kilkee, Malin Head, Rosslare, Shannon, Skellig Islands, Streedagh Point, Tramore, Valentia, Waterford, Wexford, Arklow, Balbriggan, Ballina, Ballyshannon, Bray, Buncrana, Clonakilty, Cobh, Crosshaven, Dún Laoghaire, Dungarvan, Greystones, Kenmare, Killorglin, Kinsale, Laytown, Malahide, Moville, Skerries, Sligo, Tralee, Westport, Wicklow and Youghal in october! The water temperature is freezing, reaching as low as 56°F (and only 60°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 october: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in october

Dublin

October
Average sea temperature 58°F
Minimum sea temperature 56°F
Maximum sea temperature 60°F
Average outside temperature 54°F
Maximum outside temperature 58°F
Minimum outside temperature 50°F
Precipitation 3.6in
Number of days of precipitation 5 jour(s)
(16%)
Cloud cover 55%
Our opinion freezing swimming

More information on swimming in Dublin in october

Cork

October
Average sea temperature 58°F
Minimum sea temperature 55°F
Maximum sea temperature 61°F
Average outside temperature 54°F
Maximum outside temperature 58°F
Minimum outside temperature 50°F
Precipitation 4.8in
Number of days of precipitation 7 jour(s)
(24%)
Cloud cover 56%
Our opinion freezing swimming

More information on swimming in Cork in october

Galway

October
Average sea temperature 57°F
Minimum sea temperature 55°F
Maximum sea temperature 60°F
Average outside temperature 54°F
Maximum outside temperature 58°F
Minimum outside temperature 50°F
Precipitation 4.8in
Number of days of precipitation 8 jour(s)
(25%)
Cloud cover 62%
Our opinion freezing swimming

More information on swimming in Galway in october

Belmullet

October
Average sea temperature 57°F
Minimum sea temperature 54°F
Maximum sea temperature 60°F
Average outside temperature 56°F
Maximum outside temperature 58°F
Minimum outside temperature 54°F
Precipitation 8.7in
Number of days of precipitation 13 jour(s)
(43%)
Cloud cover 61%
Our opinion freezing swimming

More information on swimming in Belmullet in october

Connemara National Park

October
Average sea temperature 57°F
Minimum sea temperature 54°F
Maximum sea temperature 60°F
Average outside temperature 52°F
Maximum outside temperature 54°F
Minimum outside temperature 49°F
Precipitation 4.7in
Number of days of precipitation 8 jour(s)
(25%)
Cloud cover 63%
Our opinion freezing swimming

More information on swimming in Connemara National Park in october

List of coastal cities in Ireland

Dublin in octoberfreezing swimming
Cork in octoberfreezing swimming
Galway in octoberfreezing swimming
Belmullet in octoberfreezing swimming
Connemara National Park in octoberfreezing swimming
Dingle in octoberfreezing swimming
Dundalk in octoberfreezing swimming
Dungloe in octoberfreezing swimming
Killybegs in octoberfreezing swimming
Letterkenny in octoberfreezing swimming
Achill Island in octoberfreezing swimming
Aran Islands in octoberfreezing swimming
Ardmore in octoberfreezing swimming
Ballycastle in octoberfreezing swimming
Bundoran in octoberfreezing swimming
Castletownbere in octoberfreezing swimming
Dalkey Island in octoberfreezing swimming
Derrybeg in octoberfreezing swimming
Donegal in octoberfreezing swimming
Dunfanaghy in octoberfreezing swimming
Cliffs of Moher in octoberfreezing swimming
Gleann Cholm Cille in octoberfreezing swimming
Kilkee in octoberfreezing swimming
Malin Head in octoberfreezing swimming
Rosslare in octoberfreezing swimming
Shannon in octoberfreezing swimming
Skellig Islands in octoberfreezing swimming
Streedagh Point in octoberfreezing swimming
Tramore in octoberfreezing swimming
Valentia in octoberfreezing swimming
Waterford in octoberfreezing swimming
Wexford in octoberfreezing swimming
Arklow in octoberfreezing swimming
Balbriggan in octoberfreezing swimming
Ballina in octoberfreezing swimming
Ballyshannon in octoberfreezing swimming
Bray in octoberfreezing swimming
Buncrana in octoberfreezing swimming
Clonakilty in octoberfreezing swimming
Cobh in octoberfreezing swimming
Crosshaven in octoberfreezing swimming
Dún Laoghaire in octoberfreezing swimming
Dungarvan in octoberfreezing swimming
Greystones in octoberfreezing swimming
Kenmare in octoberfreezing swimming
Killorglin in octoberfreezing swimming
Kinsale in octoberfreezing swimming
Laytown in octoberfreezing swimming
Malahide in octoberfreezing swimming
Moville in octoberfreezing swimming
Skerries in octoberfreezing swimming
Sligo in octoberfreezing swimming
Tralee in octoberfreezing swimming
Westport in octoberfreezing swimming
Wicklow in octoberfreezing swimming
Youghal in octoberfreezing swimming
Change units