Porth Ceiriad Sea Water Temperature
A cool beach on the Irish Sea, warmest around August at about 15.9°C. Today's reading, 7-day forecast, and monthly averages below.
Porth Ceiriad water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Porth Ceiriad Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Porth Ceiriad occurs inJuly, August, September, October — peaking at15.9°C (60.6°F) in August.
Year-Round Water Temperature Curve (°C / °F)
Hover a bar for detailsFull 12-month data table — min / avg / max & swimming comfort
| Month | Min Water Temp | Average Water Temp | Max Water Temp | Swimming Comfort |
|---|---|---|---|---|
| January | 7.8°C | 9.2°C | 10.9°C | Very Cold (< 16°C) |
| February | 7°C | 8.3°C | 9.4°C | Very Cold (< 16°C) |
| March | 6.8°C | 8°C | 9.4°C | Very Cold (< 16°C) |
| April | 8.1°C | 9.3°C | 10.3°C | Very Cold (< 16°C) |
| May | 8.9°C | 11°C | 12.4°C | Very Cold (< 16°C) |
| June | 11.9°C | 13.3°C | 14.5°C | Very Cold (< 16°C) |
| July | 12.3°C | 14.8°C | 16.4°C | Very Cold (< 16°C) |
| August | 15.3°C | 15.9°C | 17°C | Very Cold (< 16°C) |
| SeptemberCurrent | 14.3°C | 15.7°C | 17.1°C | Very Cold (< 16°C) |
| October | 13.1°C | 14.5°C | 16.1°C | Very Cold (< 16°C) |
| November | 10°C | 12.3°C | 14.1°C | Very Cold (< 16°C) |
| December | 9.7°C | 10.7°C | 12.1°C | Very Cold (< 16°C) |
Swimming FAQs for Porth Ceiriad
Is the sea warm enough to swim in Porth Ceiriad today?
Typical sea surface temperature in Porth Ceiriad this time of year is 15.7°C (60.3°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.
What are the warmest months for swimming in Porth Ceiriad?
The highest water temperatures in Porth Ceiriad typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Porth Ceiriad in September?
Historically in September, water temperatures in Porth Ceiriad average around15.7°C (60.3°F), fluctuating between a recorded minimum of 14.3°C and a maximum of 17.1°C.