Fort Lapin sea temperature
Sea-surface temperature for Fort Lapin, France, with the 7-day outlook and what to wear.
What is the sea temperature at Fort Lapin today? (3 Sept)
The sea at Fort Lapin is 20.2 °C today. Most people want a shorty, especially once the wind picks up. The sea and the air are within a degree or so of each other.
Fort Lapin sea temperature — next 7 days
Sea temperature varies by under 0.9 °C across the week.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Thu 3 Septtoday | 20.2 °C | 20.2–20.2 °C | 2 mm shorty or spring suit |
| Fri 4 Sept | 20.2 °C | 20.1–20.2 °C | 2 mm shorty or spring suit |
| Sat 5 Sept | 20.2 °C | 20.1–20.2 °C | 2 mm shorty or spring suit |
| Sun 6 Sept | 20.3 °C | 20.1–20.5 °C | 2 mm shorty or spring suit |
| Mon 7 Sept | 20.2 °C | 20.1–20.3 °C | 2 mm shorty or spring suit |
| Tue 8 Sept | 20.1 °C | 19.9–20.2 °C | 2 mm shorty or spring suit |
| Wed 9 Sept | 19.8 °C | 19.6–19.9 °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 °CFort Lapin 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 Fort Lapin
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 Fort Lapin today?
The sea at Fort Lapin, France is 20.2 °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 Fort Lapin?
At 20.2 °C, 2 mm shorty or spring suit is the usual choice at Fort Lapin. 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 Fort Lapin?
At 20.2 °C the sea at Fort Lapin is comfortable for swimming without neoprene for most people.
How much does the sea temperature at Fort Lapin change over a week?
Over the next 7 days the sea at Fort Lapin stays between 19.6 °C and 20.5 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.

