coefmaree.fr · Finistère
Tides in Finistère
The whole Finistère coast: 130 towns and 502 beaches, with times, coefficient and spring tides.
Finistère, Brittany's 'land's end', has strong tides : Brest is the historic reference port, with about 7 m of range at springs. Currents are powerful, notably in the Raz de Sein and Fromveur. From the Bay of Morlaix to the Glénan, low tide reveals coves, kelp beds and shellfish grounds.
Today's coefficient97
Next spring tideSaturday 29 August · coef. 97
Sea temperature~ 17 °C (August)
Spots to see
- Bresttidal reference port
- Roscoffbig range, seaweed
- Camaret-sur-MerCrozon peninsula
- Douarnenezbay and Port-Rhu
All towns
Côtes-d'Armor
Finistère
Morbihan
FAQ
Why is Brest the reference port?
The tide coefficient is historically based on Brest, where the amplitude defining the 20–120 scale is measured. Our coefficients are referenced to Brest, like the SHOM.
Are the currents dangerous in Finistère?
Some passages (Raz de Sein, Fromveur) have very strong tidal currents. For any boating or swimming, follow local guidance and official SHOM data.