Gwen Trez Sea Water Temperature
A temperate beach on the Celtic Sea, warmest around August at about 15.7°C. Today's reading, 7-day forecast, and monthly averages below.
Gwen Trez water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Gwen Trez Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Gwen Trez occurs inJuly, August, September, October — peaking at15.7°C (60.3°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 | 10.3°C | 11.3°C | 12.6°C | Very Cold (< 16°C) |
| February | 9.3°C | 10.7°C | 11.5°C | Very Cold (< 16°C) |
| March | 9.3°C | 10.5°C | 11.7°C | Very Cold (< 16°C) |
| April | 9.9°C | 11°C | 12.3°C | Very Cold (< 16°C) |
| May | 11°C | 12.3°C | 13.8°C | Very Cold (< 16°C) |
| June | 12.5°C | 13.9°C | 15.3°C | Very Cold (< 16°C) |
| July | 13.2°C | 15.2°C | 17.7°C | Very Cold (< 16°C) |
| August | 14°C | 15.7°C | 17.5°C | Very Cold (< 16°C) |
| SeptemberCurrent | 13.4°C | 15°C | 16.7°C | Very Cold (< 16°C) |
| October | 13.3°C | 14.3°C | 16.4°C | Very Cold (< 16°C) |
| November | 11.9°C | 13.5°C | 14.8°C | Very Cold (< 16°C) |
| December | 11.3°C | 12.4°C | 13.8°C | Very Cold (< 16°C) |
Swimming FAQs for Gwen Trez
Is the sea warm enough to swim in Gwen Trez today?
Typical sea surface temperature in Gwen Trez this time of year is 15°C (59°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 Gwen Trez?
The highest water temperatures in Gwen Trez typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Gwen Trez in September?
Historically in September, water temperatures in Gwen Trez average around15°C (59.0°F), fluctuating between a recorded minimum of 13.4°C and a maximum of 16.7°C.