La Grande Plage des Sables d'Olonne sea temperature
Sea-surface temperature for La Grande Plage des Sables d'Olonne, France, with the 7-day outlook and what to wear.
What is the sea temperature at La Grande Plage des Sables d'Olonne today? (3 Sept)
The sea at La Grande Plage des Sables d'Olonne is 21.4 °C today. Most people want a shorty, especially once the wind picks up. The sea is about 2 °C warmer than the air, so it will feel mild going in.
La Grande Plage des Sables d'Olonne sea temperature — next 7 days
Sea temperature is cooling across the week, by about 0.5 °C from start to end.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Thu 3 Septtoday | 21.6 °C | 21.3–21.9 °C | 2 mm shorty or spring suit |
| Fri 4 Sept | 21.7 °C | 21.4–21.9 °C | 2 mm shorty or spring suit |
| Sat 5 Sept | 22.0 °C | 21.5–22.6 °C | 2 mm shorty or spring suit |
| Sun 6 Sept | 21.9 °C | 21.7–22.0 °C | 2 mm shorty or spring suit |
| Mon 7 Sept | 21.9 °C | 21.8–22.1 °C | 2 mm shorty or spring suit |
| Tue 8 Sept | 21.8 °C | 21.7–21.9 °C | 2 mm shorty or spring suit |
| Wed 9 Sept | 21.1 °C | 20.7–21.6 °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 °C | Rash vest or 1 mm top | — |
| 19–22 °CLa Grande Plage des Sables d'Olonne today | 2 mm shorty or spring suit | — |
| 17–19 °C | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suit | boots on longer sessions |
| 11–14 °C | 5/4 mm full suit | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suit | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suit | thick boots and gloves |
Conditions at La Grande Plage des Sables d'Olonne
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Frequently asked questions.
What is the sea temperature at La Grande Plage des Sables d'Olonne today?
The sea at La Grande Plage des Sables d'Olonne, France is 21.4 °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 La Grande Plage des Sables d'Olonne?
At 21.4 °C, 2 mm shorty or spring suit is the usual choice at La Grande Plage des Sables d'Olonne. Most people want a shorty, especially once the wind picks up. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at La Grande Plage des Sables d'Olonne?
At 21.4 °C the sea at La Grande Plage des Sables d'Olonne is comfortable for swimming without neoprene for most people.
How much does the sea temperature at La Grande Plage des Sables d'Olonne change over a week?
Over the next 7 days the sea at La Grande Plage des Sables d'Olonne stays between 20.7 °C and 22.6 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.
