Plage de Saint-Marc Sea Water Temperature
A temperate beach on the Cantabrian Sea, warmest around August at about 18.6°C. Today's reading, 7-day forecast, and monthly averages below.
Plage de Saint-Marc water temperature
Invigorating and crisp. Tolerable for active swimming, but chilly for prolonged casual bathing.
7-Day Water Temperature Forecast
Plage de Saint-Marc Monthly Water Temperature Averages
Historical monthly climatology. The warmest water in Plage de Saint-Marc occurs inJune, July, August, September — peaking at18.6°C (65.5°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 | 7.3°C | 9.7°C | 12.1°C | Very Cold (< 16°C) |
| February | 7.5°C | 9.1°C | 10.7°C | Very Cold (< 16°C) |
| March | 7.6°C | 9.8°C | 11.5°C | Very Cold (< 16°C) |
| April | 10.2°C | 12°C | 15.2°C | Very Cold (< 16°C) |
| May | 11.5°C | 14.5°C | 18°C | Very Cold (< 16°C) |
| June | 14.9°C | 16.7°C | 18.3°C | Cool / Refreshing (16°C – 20°C) |
| July | 15.1°C | 18.3°C | 21.5°C | Cool / Refreshing (16°C – 20°C) |
| August | 16.8°C | 18.6°C | 22.2°C | Cool / Refreshing (16°C – 20°C) |
| SeptemberCurrent | 15.5°C | 17.6°C | 19.7°C | Cool / Refreshing (16°C – 20°C) |
| October | 14.6°C | 16.3°C | 19.7°C | Cool / Refreshing (16°C – 20°C) |
| November | 11.5°C | 13.8°C | 16.3°C | Very Cold (< 16°C) |
| December | 9.6°C | 11.2°C | 12.9°C | Very Cold (< 16°C) |
Swimming FAQs for Plage de Saint-Marc
Is the sea warm enough to swim in Plage de Saint-Marc today?
Typical sea surface temperature in Plage de Saint-Marc this time of year is 17.6°C (63.7°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 Plage de Saint-Marc?
The highest water temperatures in Plage de Saint-Marc typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.
What is the typical water temperature in Plage de Saint-Marc in September?
Historically in September, water temperatures in Plage de Saint-Marc average around17.6°C (63.7°F), fluctuating between a recorded minimum of 15.5°C and a maximum of 19.7°C.