Fetching this spot's conditions…
Tip of the moment
Fetching this spot's conditions…
Tip of the moment
Kerlouan · Bretagne
Today's take
Window: 10:00–19:00, with caution — read the safety panel before you go.
Water temperature
16.3 °C
Verdict
Glassy
Underwater visibility
~8.8 m
satellite reading from 3 days ago
When to go
Good from 10:00 to 19:00.
Pin colours:swimmablecautionnot advisedconditions not loaded yet
Forecasts come from ~8 km resolution models: very local effects (a sheltering pier, a lagoon pass) are not captured.
Sea-state data comes from a marine model cell about 7.3 km from this point — local nearshore conditions can differ.
The sea state is read as close to the beach as the model allows, without our having verified that this water is the water at the shore (indented coast, ria, head of a bay). Take it as an order of magnitude: what comes in from open sea may not reach this far.
Wave heights are significant heights: individual waves up to 2× this height still occur.
Four wave models are compared for this point: EWAM, GWAM, Météo-France WAM and ECMWF WAM.
Tide times derived from modelled sea level (± a few tens of minutes) — not official tide tables.
Missing data is shown as missing — never silently estimated.
Beach locations from OpenStreetMap — © OpenStreetMap contributors (ODbL).
Weather and marine data: Open-Meteo.com (CC BY 4.0), wave models from the Deutscher Wetterdienst (CC BY 4.0). Forecasts are not guarantees. · Data fetched at 22:18 UTC
Water clarity generated using E.U. Copernicus Marine Service Information.
Windows, comfort score and verdicts are computed by oswim from this data — modified values, not the institutes' raw figures.
min 3 · max 24 km/h · north sector · gusts 42 km/h
Post-rain pollution · 1.7 – 11.7 mm over 24 h
Heavy recent rain: the water washes roads, fields and car parks, overflows the sewer network, and all of it reaches the sea loaded with bacteria. Avoid swimming for 24–48 h, especially near river mouths.
Official sampling is weekly at best; between two samples, recent rain is the recognized warning signal (EEA)
Thunderstorm · None forecast
No thunderstorms forecast.
World Triathlon: stop on lightning
Visibility · 5 – 37 km
Good visibility.
Loss of bearings and collision risk
Jellyfish: no recent info. If you're there, tell us what you see — even “none” helps the next swimmer.
In all cases: bright swim cap and tow float so boats can see you.
Consolidated ladder: World Aquatics / World Triathlon / FFTri rules + manufacturer thermal guides
Spot profile pending on-site verification.