Swimming in Wales in june 2025 Sea temperature by city in june
Do you want to go to the beach in Wales in june 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 june in Wales by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Wales in june 2025
Here, find the average sea temperature in Wales in june in several coastal cities.
57°F
min: 54°F / max: 60°F
Conwy
56°F
min: 53°F / max: 59°F
Holyhead
55°F
min: 52°F / max: 57°F
57°F
min: 54°F / max: 59°F
Snowdonia National Park
56°F
min: 53°F / max: 59°F
57°F
min: 54°F / max: 60°F
Aberystwyth
56°F
min: 54°F / max: 58°F
Amlwch
56°F
min: 52°F / max: 59°F
56°F
min: 53°F / max: 58°F
Barry
57°F
min: 54°F / max: 60°F
Buckley
56°F
min: 53°F / max: 60°F
Fishguard
56°F
min: 54°F / max: 60°F
56°F
min: 53°F / max: 60°F
Llanelli
57°F
min: 54°F / max: 61°F
Porthcawl
58°F
min: 54°F / max: 61°F
Where should you go swimming in Wales in the month of june?
Swimming in Wales in june is freezing
In june in Wales swimming conditions are generally the same everywhere.
Forget about swimming in Cardiff, Conwy, Holyhead, Pembrokeshire, Snowdonia National Park, Swansea, Aberystwyth, Amlwch, Barmouth, Barry, Buckley, Fishguard, Llandudno, Llanelli and Porthcawl in june! The water temperature is freezing, reaching as low as 54°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 Wales in june: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in june
Cardiff
| June | |||
| Average sea temperature | 57°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 2.4in | ||
| Number of days of precipitation | 3 jour(s) (11%) | ||
| Cloud cover | 50% | ||
| Our opinion | freezing swimming |
More information on swimming in Cardiff in june
Conwy
| June | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 53°F | ||
| Maximum sea temperature | 59°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 3.8in | ||
| Number of days of precipitation | 6 jour(s) (20%) | ||
| Cloud cover | 51% | ||
| Our opinion | freezing swimming |
Holyhead
| June | |||
| Average sea temperature | 55°F | ||
| Minimum sea temperature | 52°F | ||
| Maximum sea temperature | 57°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 59°F | ||
| Minimum outside temperature | 56°F | ||
| Precipitation | 4in | ||
| Number of days of precipitation | 7 jour(s) (22%) | ||
| Cloud cover | 48% | ||
| Our opinion | freezing swimming |
Pembrokeshire
| June | |||
| Average sea temperature | 57°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 59°F | ||
| Average outside temperature | 59°F | ||
| Maximum outside temperature | 61°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 4.2in | ||
| Number of days of precipitation | 7 jour(s) (23%) | ||
| Cloud cover | 46% | ||
| Our opinion | freezing swimming |
More information on swimming in Pembrokeshire in june
Snowdonia National Park
| June | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 53°F | ||
| Maximum sea temperature | 59°F | ||
| Average outside temperature | 54°F | ||
| Maximum outside temperature | 59°F | ||
| Minimum outside temperature | 50°F | ||
| Precipitation | 5.7in | ||
| Number of days of precipitation | 9 jour(s) (28%) | ||
| Cloud cover | 56% | ||
| Our opinion | freezing swimming |
List of coastal cities in Wales
| Cardiff in june | freezing swimming |
| Conwy in june | freezing swimming |
| Holyhead in june | freezing swimming |
| Pembrokeshire in june | freezing swimming |
| Snowdonia National Park in june | freezing swimming |
| Swansea in june | freezing swimming |
| Aberystwyth in june | freezing swimming |
| Amlwch in june | freezing swimming |
| Barmouth in june | freezing swimming |
| Barry in june | freezing swimming |
| Buckley in june | freezing swimming |
| Fishguard in june | freezing swimming |
| Llandudno in june | freezing swimming |
| Llanelli in june | freezing swimming |
| Porthcawl in june | freezing swimming |