Pentreath Sea Water Temperature
A temperate beach on the Celtic Sea, warmest around August at about 17°C. Today's reading, 7-day forecast, and monthly averages below.
Pentreath water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Pentreath Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Pentreath occurs inJune, July, August, September — peaking at17°C (62.6°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 | 9.9°C | 10.9°C | 12.1°C | Very Cold (< 16°C) |
| February | 9.3°C | 10.2°C | 11.1°C | Very Cold (< 16°C) |
| March | 8.8°C | 9.9°C | 10.8°C | Very Cold (< 16°C) |
| April | 9.6°C | 10.6°C | 12.7°C | Very Cold (< 16°C) |
| May | 10.3°C | 12.2°C | 14.5°C | Very Cold (< 16°C) |
| June | 12.4°C | 14.8°C | 16.9°C | Very Cold (< 16°C) |
| July | 13.8°C | 16.6°C | 20°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.4°C | 17°C | 18.9°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 14.6°C | 16.1°C | 17.7°C | Cool / Refreshing (16°C – 20°C) |
| October | 13.1°C | 14.6°C | 15.9°C | Very Cold (< 16°C) |
| November | 10.9°C | 13.2°C | 14.6°C | Very Cold (< 16°C) |
| December | 10.7°C | 11.8°C | 12.9°C | Very Cold (< 16°C) |
Swimming FAQs for Pentreath
Is the sea warm enough to swim in Pentreath today?
Typical sea surface temperature in Pentreath this time of year is 16.1°C (61°F) — classified as Cool / Refreshing (16°C – 20°C). Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing. Live readings load automatically.
What are the warmest months for swimming in Pentreath?
The highest water temperatures in Pentreath typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Pentreath in September?
Historically in September, water temperatures in Pentreath average around16.1°C (61.0°F), fluctuating between a recorded minimum of 14.6°C and a maximum of 17.7°C.