The Gannel 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.
The Gannel water temperature
Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.
7-Day Water Temperature Forecast
The Gannel Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in The Gannel 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 | 8.6°C | 10.4°C | 11.5°C | Very Cold (< 16°C) |
| February | 8.8°C | 9.7°C | 10.6°C | Very Cold (< 16°C) |
| March | 8.5°C | 9.5°C | 10.5°C | Very Cold (< 16°C) |
| April | 8.9°C | 10.4°C | 12°C | Very Cold (< 16°C) |
| May | 10.3°C | 12°C | 14.2°C | Very Cold (< 16°C) |
| June | 12.5°C | 14.5°C | 17°C | Very Cold (< 16°C) |
| July | 13.9°C | 16.2°C | 19.4°C | Cool / Refreshing (16°C – 20°C) |
| August | 15.6°C | 16.5°C | 18.1°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 14.3°C | 15.9°C | 18.1°C | Very Cold (< 16°C) |
| October | 13.3°C | 14.9°C | 16.2°C | Very Cold (< 16°C) |
| November | 10.7°C | 13.2°C | 14.7°C | Very Cold (< 16°C) |
| December | 10°C | 11.4°C | 12.7°C | Very Cold (< 16°C) |
Swimming FAQs for The Gannel
Is the sea warm enough to swim in The Gannel today?
Typical sea surface temperature in The Gannel this time of year is 15.9°C (60.6°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 The Gannel?
The highest water temperatures in The Gannel typically occur duringJuly, August, September, October, when monthly averages reach peak seasonal levels.
What is the typical water temperature in The Gannel in September?
Historically in September, water temperatures in The Gannel average around15.9°C (60.6°F), fluctuating between a recorded minimum of 14.3°C and a maximum of 18.1°C.