Sérignan-Plage sea temperature
Sea-surface temperature for Sérignan-Plage, France, with the 7-day outlook and what to wear.
What is the sea temperature at Sérignan-Plage today? (20 Oct)
The sea at Sérignan-Plage is 20.8 °C today. Most people want a shorty, especially once the wind picks up. The sea is about 9 °C warmer than the air, so it will feel mild going in.
Sérignan-Plage sea temperature — next 7 days
Sea temperature varies by under 1.0 °C across the week.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Tue 20 Octtoday | 20.8 °C20.7–20.9 °C | 20.7–20.9 °C | 2 mm shorty or spring suit |
| Wed 21 Oct | 20.6 °C20.6–20.7 °C | 20.6–20.7 °C | 2 mm shorty or spring suit |
| Thu 22 Oct | 20.6 °C20.5–20.6 °C | 20.5–20.6 °C | 2 mm shorty or spring suit |
| Fri 23 Oct | 20.4 °C20.2–20.5 °C | 20.2–20.5 °C | 2 mm shorty or spring suit |
| Sat 24 Oct | 20.1 °C20.1–20.2 °C | 20.1–20.2 °C | 2 mm shorty or spring suit |
| Sun 25 Oct | 20.0 °C19.9–20.1 °C | 19.9–20.1 °C | 2 mm shorty or spring suit |
| Mon 26 Oct | 19.9 °C19.9–19.9 °C | 19.9–19.9 °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 °CSérignan-Plage today | 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 Sérignan-Plage
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 Sérignan-Plage
Frequently asked questions.
What is the sea temperature at Sérignan-Plage today?
The sea at Sérignan-Plage, France is 20.8 °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 Sérignan-Plage?
At 20.8 °C, 2 mm shorty or spring suit is the usual choice at Sérignan-Plage. 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 Sérignan-Plage?
At 20.8 °C the sea at Sérignan-Plage is comfortable for swimming without neoprene for most people.
How much does the sea temperature at Sérignan-Plage change over a week?
Over the next 7 days the sea at Sérignan-Plage stays between 19.9 °C and 20.9 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.

