Legal Notice

Last updated: March 2026

1. Website Publisher

TidesAtlas.com is an international online tide times service.
Website: https://tidesatlas.com
Contact: support@tidesatlas.com

2. Hosting

OVH SAS
2 rue Kellermann — 59100 Roubaix, France
Phone : +33 9 72 10 10 07
www.ovhcloud.com

3. Intellectual Property

All content on TidesAtlas.com (text, images, graphics, logo, database, structure) is protected by copyright and international intellectual property law. Any reproduction, even partial, is prohibited without prior written consent.

Tide data is calculated from complementary harmonic sources: TICON-4 (CC-BY 4.0), NOAA CO-OPS (public domain), FES2022 (© CNES/AVISO/LEGOS, used with attribution) and constants refitted on Copernicus Marine Service observations ("Generated using E.U. Copernicus Marine Service Information", doi:10.17882/93670). South Korea: harmonic constants and tidal bench marks of the Korea Hydrographic and Oceanographic Agency (KHOA, Korea Open Government License Type 1). Hong Kong: tide predictions of the Hong Kong Observatory (HKO), via DATA.GOV.HK. Taiwan: official tide forecasts and tide-gauge measurements of the Central Weather Administration (CWA, Ministry of Transportation and Communications), released under the Open Government Data License, version 1.0 (data.gov.tw/license). Canada: official predictions of the Canadian Hydrographic Service (Fisheries and Oceans Canada); contains information licensed under the Open Government Licence – Canada. England: contains Environment Agency data licensed under the Open Government Licence v3.0 (estuary tide gauges). French secondary ports are corrected using the Shom « Références Altimétriques Maritimes » (Shom, 2025, doi:10.17183/MAREE_COURANTS_RAM, Licence Ouverte 2.0). Water-level observations come from the Shom REFMAR network (Licence Ouverte 2.0), Hub'Eau hydrometric stations (Etalab Open Licence 2.0) and the University of Hawaii Sea Level Center archives (UHSLC, doi:10.7289/V5V40S7W). Predictions are not intended for navigation.

4. Personal Data & GDPR

In compliance with the GDPR (EU 2016/679), we are committed to protecting your personal data.

Data collected: browsing the site does not require registration or personal data. Anonymous navigation data may be collected for statistical purposes.

Cookies: only technical and anonymised analytical cookies are used. No advertising or tracking cookies are placed.

Your rights: access, rectification, erasure, restriction, portability, and objection. Contact: support@tidesatlas.com. Response time: 30 days.

5. Limitation of Liability

Information provided on TidesAtlas.com is for informational purposes only. The publisher accepts no liability for any direct or indirect damage resulting from the use of the data presented. For any maritime activity, consult the competent maritime authorities in your country.

6. Governing Law

This legal notice is governed by French law. In the event of a dispute, jurisdiction is granted to the French courts.