Porthgwarra Sea Water Temperature
A temperate beach on the Celtic Sea, warmest around August at about 16.5°C. Today's reading, 7-day forecast, and monthly averages below.
Porthgwarra water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
Porthgwarra Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Porthgwarra occurs inJuly, August, September, October — peaking at16.5°C (61.7°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 | 9.4°C | 10.6°C | 11.8°C | Very Cold (< 16°C) |
| February | 9.1°C | 10°C | 10.7°C | Very Cold (< 16°C) |
| March | 8.7°C | 9.7°C | 10.5°C | Very Cold (< 16°C) |
| April | 9.5°C | 10.4°C | 11.8°C | Very Cold (< 16°C) |
| May | 10.3°C | 11.9°C | 14°C | Very Cold (< 16°C) |
| June | 12.4°C | 14.3°C | 16.2°C | Very Cold (< 16°C) |
| July | 13.7°C | 16.2°C | 19.5°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.3°C | 16.5°C | 18°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 14.3°C | 15.8°C | 18°C | Very Cold (< 16°C) |
| October | 12.8°C | 14.5°C | 15.9°C | Very Cold (< 16°C) |
| November | 10.8°C | 13°C | 14.4°C | Very Cold (< 16°C) |
| December | 10.4°C | 11.6°C | 12.9°C | Very Cold (< 16°C) |
Swimming FAQs for Porthgwarra
Is the sea warm enough to swim in Porthgwarra today?
Typical sea surface temperature in Porthgwarra this time of year is 15.8°C (60.4°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 Porthgwarra?
The highest water temperatures in Porthgwarra typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Porthgwarra in September?
Historically in September, water temperatures in Porthgwarra average around15.8°C (60.4°F), fluctuating between a recorded minimum of 14.3°C and a maximum of 18°C.