Porth Iago 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 Iago water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Porth Iago Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Porth Iago 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 Iago
Is the sea warm enough to swim in Porth Iago today?
Typical sea surface temperature in Porth Iago 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 Iago?
The highest water temperatures in Porth Iago typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Porth Iago in September?
Historically in September, water temperatures in Porth Iago average around15.7°C (60.3°F), fluctuating between a recorded minimum of 14.3°C and a maximum of 17.1°C.