Plage de Saint-Clair sea temperature
Sea-surface temperature for Plage de Saint-Clair, France, with the 7-day outlook and what to wear.
What is the sea temperature at Plage de Saint-Clair today? (20 Oct)
The sea at Plage de Saint-Clair is 22.2 °C today. Comfortable without a wetsuit, though a top helps on a long session or a windy day. The sea and the air are within a degree or so of each other.
Plage de Saint-Clair sea temperature — next 7 days
Sea temperature is cooling across the week, by about 2.2 °C from start to end.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Tue 20 Octtoday | 22.2 °C22.1–22.2 °C | 22.1–22.2 °C | Rash vest or 1 mm top |
| Wed 21 Oct | 22.0 °C21.8–22.1 °C | 21.8–22.1 °C | 2 mm shorty or spring suit |
| Thu 22 Oct | 21.6 °C21.3–21.8 °C | 21.3–21.8 °C | 2 mm shorty or spring suit |
| Fri 23 Oct | 21.2 °C21.1–21.3 °C | 21.1–21.3 °C | 2 mm shorty or spring suit |
| Sat 24 Oct | 20.7 °C20.5–21.0 °C | 20.5–21.0 °C | 2 mm shorty or spring suit |
| Sun 25 Oct | 20.2 °C20.0–20.5 °C | 20.0–20.5 °C | 2 mm shorty or spring suit |
| Mon 26 Oct | 19.9 °C19.8–20.0 °C | 19.8–20.0 °C | 2 mm shorty or spring suit |
Figures are modelled sea-surface temperature, not readings from a buoy or a thermometer in the shallows — expect a degree either way, and more in a shallow bay on a hot afternoon. Wetsuit suggestions are general guidance: cold tolerance varies a lot between people, and wind, session length and air temperature matter as much as the water does.
What wetsuit for what sea temperature?
| Sea temperature | Wetsuit | Extras |
|---|---|---|
| 24 °C and above | Boardshorts or swimsuit | — |
| 22–24 °CPlage de Saint-Clair today | Rash vest or 1 mm top | — |
| 19–22 °C | 2 mm shorty or spring suit | — |
| 17–19 °C | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suitboots on longer sessions | boots on longer sessions |
| 11–14 °C | 5/4 mm full suitboots and gloves | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suitboots and gloves | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suitthick boots and gloves | thick boots and gloves |
Conditions at Plage de Saint-Clair
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Sea temperature near Plage de Saint-Clair
Frequently asked questions.
What is the sea temperature at Plage de Saint-Clair today?
The sea at Plage de Saint-Clair, France is 22.2 °C today. This is modelled sea-surface temperature rather than a buoy reading, so allow a degree either way.
What wetsuit do I need at Plage de Saint-Clair?
At 22.2 °C, rash vest or 1 mm top is the usual choice at Plage de Saint-Clair. Comfortable without a wetsuit, though a top helps on a long session or a windy day. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Plage de Saint-Clair?
At 22.2 °C the sea at Plage de Saint-Clair is comfortable for swimming without neoprene for most people.
How much does the sea temperature at Plage de Saint-Clair change over a week?
Over the next 7 days the sea at Plage de Saint-Clair stays between 19.8 °C and 22.2 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.

