Grand Plage Sea Water Temperature
A temperate beach on the Cantabrian Sea, warmest around August at about 19.8°C. Today's reading, 7-day forecast, and monthly averages below.
Grand Plage water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Grand Plage Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Grand Plage occurs inJune, July, August, September — peaking at19.8°C (67.6°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 | 7.4°C | 9.9°C | 12.3°C | Very Cold (< 16°C) |
| February | 8°C | 9.3°C | 10.9°C | Very Cold (< 16°C) |
| March | 7.7°C | 10.2°C | 12°C | Very Cold (< 16°C) |
| April | 10.8°C | 12.3°C | 15.1°C | Very Cold (< 16°C) |
| May | 12.1°C | 15°C | 18.9°C | Very Cold (< 16°C) |
| June | 14.2°C | 17.3°C | 19.3°C | Cool / Refreshing (16°C – 20°C) |
| July | 17°C | 19.3°C | 22.3°C | Cool / Refreshing (16°C – 20°C) |
| August | 18.1°C | 19.8°C | 24.2°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 15.5°C | 18.6°C | 20.7°C | Cool / Refreshing (16°C – 20°C) |
| October | 14.9°C | 17.2°C | 21°C | Cool / Refreshing (16°C – 20°C) |
| November | 11.8°C | 14.1°C | 17°C | Very Cold (< 16°C) |
| December | 9.6°C | 11.4°C | 13.5°C | Very Cold (< 16°C) |
Swimming FAQs for Grand Plage
Is the sea warm enough to swim in Grand Plage today?
Typical sea surface temperature in Grand Plage this time of year is 18.6°C (65.5°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 Grand Plage?
The highest water temperatures in Grand Plage typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Grand Plage in September?
Historically in September, water temperatures in Grand Plage average around18.6°C (65.5°F), fluctuating between a recorded minimum of 15.5°C and a maximum of 20.7°C.