As of Monday, June 18, 2018, water level measurements will stop being broadcast on

You can now view and download the tide gauge observations on the website

La diffusion des données marégraphiques REFMAR est transférée sur le site, le portail de l'information géographique maritime et littorale de références.

Les équipes REFMAR et se tiennent à votre disposition pour vous aider à assurer au mieux ce basculement et pour répondre à l'ensemble de vos questions.

You can create account

Welcome to REFMAR

marégraphe radar installé au port de Saint-Pierre - Archipel français de Saint-Pierre et Miquelon (crédits SHOM - Noé Poffa, juin 2012)

Bringing together the existing networks and monitoring the integration of emerging networks at territorial scale for practical distribution through a single portal is one of the SHOM's objectives, through tide gauge observation reference networks (French designation REFMAR) included in the Prime Ministerial instruction relating to the observation of the sea level and the management and distribution of the resulting data.

REFMAR notably pays particular attention to the distribution of sea level measurements from the networks currently deployed by ensuring the general conditions of use.

The current data are not the only ones proposed on REFMAR. For certain stations, the sets of measurements are supplemented by historical observations (20th century and previous centuries).

Do not hesitate to contact us in order to add other tide gauge stations. If you so request, we can provide you with a standard agreement.

Producers tidal data partners REFMAR

Partenaires REFMAR - producteurs de données marégraphiques - mis à jour le 16/01/2019