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341                          <a href="https://www.dfo-mpo.gc.ca/otw-am/index-eng.htm">On the water </a>
342                      </li>
343                  <li >
344                          <a href="http://www.dfo-mpo.gc.ca/otw-am/navigation-conditions/index-eng.htm">Navigating</a>
345                      </li>
346                  <li >
347                          <a href="/en/tides-currents-and-water-levels">Tides, currents, and water levels</a>
348                      </li>
349              </ol>
350  </div>
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352
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359  <div class="container">
360    <div class="row">
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374                
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377                  
378                          <a id="main-content"></a>
379            <div class="region region-content">
380      <article data-history-node-id="242" class="node node--type-page node--view-mode-full clearfix">
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397  
398    
399
400      
401            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><h1>About tides, currents, and water levels
402</h1>
403</div>
404      
405  </section>
406
407    </div>
408  </div>
409
410  </section>
411</div>
412  </div>
413  
414  
415    <div class="col-sm-12 bs-region bs-region--middle">
416    <div class="block-region-middle"><section data-block-plugin-id="field_block:node:direction:body" class="block block-layout-builder block-field-blocknodedirectionbody clearfix">
417  
418    
419
420      
421            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><div class="row profile">
422<div class="col-md-6">
423<p class="pagetag">Learn about tides and currents in Canada and the history of tidal measurements.</p>
424
425<section class="followus">
426<h2>Follow us</h2>
427
428<ul>
429	<li><a class="facebook" href="https://www.facebook.com/FisheriesOceansCanada" rel="external"><span class="wb-inv">Facebook</span></a></li>
430	<li><a class="wb-lbx twitter" href="#twitter" rel="external"><span class="wb-inv">Twitter</span></a></li>
431	<li><a class="youtube" href="https://www.youtube.com/user/fisheriescanad
431a" rel="external"><span class="wb-inv">YouTube</span></a></li>
432	<li><a class="linkedin" href="https://www.linkedin.com/company/fisheries-and-oceans-canada/" rel="external"><span class="wb-inv">LinkedIn</span></a></li>
433	<li><a class="instagram" href="https://www.instagram.com/FisheriesOceansCAN/" rel="external"><span class="wb-inv">Instagram</span></a></li>
434</ul>
435</section>
436
437<section class="mfp-hide modal-dialog modal-content overlay-def" id="twitter">
438<header class="modal-header">
439<h2 class="modal-title">Twitter</h2>
440</header>
441
442<div class="modal-body">
443<ul class="list-unstyled lst-spcd">
444	<li><a href="https://twitter.com/FishOceansCAN">@FishOceansCAN</a> (Fisheries and Oceans Canada)</li>
445	<li><a href="https://twitter.com/DFO_MAR">@DFO_MAR</a> (Maritimes)</li>
446	<li><a href="https://twitter.com/DFO_NL">@DFO_NL</a> (Newfoundland and Labrador)</li>
447	<li><a href="https://twitter.com/DFO_Pacific">@DFO_Pacific</a> (Pacific)</li>
448</ul>
449</div>
450</section>
451</div>
452
453<div class="col-md-6 mrgn-tp-sm hidden-sm hidden-xs"><img alt="About tides, currents, and water levels" class="pull-right img-responsive thumbnail" src="/sites/tides/files/information_520x200.jpg" /></div>
454</div>
455
456<div class="row">
457<section class="col-md-12 mrgn-bttm-lg">
458<h2>Services and information</h2>
459
460<div class="row">
461<div class="col-md-6 col-lg-4">
462<section class="gc-drmt">
463<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b1959340-0c4f-434b-a876-5e9b6827063d" href="/en/about-tides-and-currents" title="About tides and currents">Tides and currents in Canada</a></h3>
464
465<p>About tides and currents, including their causes and how we use their data.</p>
466</section>
467</div>
468
469<div class="col-md-6 col-lg-4">
470<section class="gc-drmt">
471<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="bd55bb74-2bd9-4a43-a670-a04974aa4153" href="/en/notices-and-important-messages" title="Notices and important messages">Notices and important messages</a></h3>
472
473<p>Notices on digital services and water level gauges.</p>
474</section>
475</div>
476
477<div class="clearfix visible-md"> </div>
478
479<div class="col-md-6 col-lg-4">
480<section class="gc-drmt">
481<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="a27b758d-1884-4e6e-b70a-c28dd65a5c4a" href="/en/definitions-content-tides-and-currents" title="Definitions for content on tides and currents">Definitions</a></h3>
482
483<p>List of tidal terms and expressions, and acronym meanings.</p>
484</section>
485</div>
486
487<div class="clearfix visible-lg"> </div>
488
489<div class="col-md-6 col-lg-4">
490<section class="gc-drmt">
491<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3112ed1a-fd04-4f78-96bb-c5f55c51eee4" href="/en/vertical-datum-chart-references" title="Vertical datum chart references">Vertical datum chart references</a></h3>
492
493<p>About the vertical datum reference on navigational charts.</p>
494</section>
495</div>
496
497<div class="clearfix visible-md"> </div>
498
499<div class="col-md-6 col-lg-4">
500<section class="gc-drmt">
501<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3035cfce-f113-49f7-adc7-7fe085ad649d" href="/en/tidal-phenomena" title="Tidal phenomena">Tidal phenomena</a></h3>
502
503<p>Tides and tidal streams, shallow water effects and non-tidal influences.</p>
504</section>
505</div>
506
507<div class="col-md-6 col-lg-4">
508<section class="gc-drmt">
509<h3 class="h5"><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="71e8604b-5c1f-4e9a-b6d1-36ccdd6a43e2" href="/en/history-tidal-measurements-canada" title="History of tidal measurements in Canada">History of tidal measurements</a></h3>
510
511<p>Background on tidal, current and water level surveying.</p>
512</section>
513</div>
514
515<div class="clearfix"> </div>
516</div>
517</section>
518</div>
519
520<section class="whtwedo">
521<h2>What we are doing</h2>
522
523<div class="row wb-eqht">
524<section class="col-lg-4 col-md-6">
525<h3>Publications</h3>
526
527<ul class="lst-spcd">
528	<li><a href="https://charts.gc.ca/publications/atlas-eng.html">Atlas of Tidal Currents</a></li>
529	<li><a href="https://charts.gc.ca/publications/tables-eng.html">Canadian Tide and Current Tables</a></li>
530	<li><a href="https://charts.gc.ca/publications/sailingdirections-instructionsnautiques-eng.html">Sailing Directions</a></li>
531	<li><a href="https://charts.gc.ca/publications/catalogues-eng.html">Chart Catalogues</a></li>
532</ul>
533
534<p><strong><a href="https://charts.gc.ca/publications/index-eng.html">All related publications</a></strong></p>
535</section>
536
537<section class="col-lg-4 col-md-6">
538<h3>Open data</h3>
539
540<ul class="lst-spcd lnkbx">
541	<li>
541<a href="https://open.canada.ca/data/en/dataset/d3881c4c-650d-4070-bf9b-1e00aabf0a1d">Canadian Hydrographic Service Non-Navigational (NONNA) Bathymetric Data</a></li>
542	<li><a href="https://charts.gc.ca/charts-cartes/chart-index-carte-eng.html">Chart Index</a></li>
543	<li><a href="https://charts.gc.ca/data-gestion/resourcemaps-cartesressources-eng.html">Natural Resource Maps</a></li>
544</ul>
545
546<p><strong><a href="https://open.canada.ca/data/en/dataset?keywords=Hydrography">All related open data</a></strong></p>
547</section>
548
549<section class="col-lg-4 col-md-6">
550<h3>Videos</h3>
551
552<ul class="lst-spcd lnkbx">
553	<li><a href="https://dfo-mpo.gc.ca/videos/s-100-eng.html">S-100 services for safe and optimized e-navigation</a></li>
554	<li><a href="https://dfo-mpo.gc.ca/videos/ahsv-vhsa-eng.html">Automated Hydrographic Surface Vehicles</a></li>
555	<li><a href="https://dfo-mpo.gc.ca/videos/cssv-nhsc-eng.html">Channel Survey and Sounding Vessels</a></li>
556	<li><a href="https://dfo-mpo.gc.ca/videos/hydrography-science-hydrographie-eng.html">The Science of Hydrography</a></li>
557</ul>
558
559<p><strong><a href="https://dfo-mpo.gc.ca/videos/index-eng.html?table=hydrography">All related videos</a></strong></p>
560</section>
561</div>
562</section>
563</div>
564      
565  </section>
566</div>
567  </div>
568  
569  <div class="wxt-eqht">
570    
571      </div>
572
573  
574    <div class="col-sm-12 bs-region bs-region--bottom">
575    <div class="block-region-bottom"><section data-block-plugin-id="block_content:3e0e9fcd-752c-4a0d-89cc-8a43f237bc0d" class="block block-block-content block-block-content3e0e9fcd-752c-4a0d-89cc-8a43f237bc0d clearfix">
576  
577    
578
579        <div class="layout layout--onecol">
580    <div  class="layout__region layout__region--content">
581      <section data-block-plugin-id="field_block:block_content:basic:body" class="block block-layout-builder block-field-blockblock-contentbasicbody clearfix">
582  
583    
584
585      
586            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item"><h2 class="mrgn-bttm-lg">Features</h2>
587
588<div class="form-group">
589<div class="col-sm-4">
590<div><a href="https://charts.gc.ca/transformation/index-eng.html" target="_blank"><img alt="CHS Digital Transformation Initiative" class="img-responsive" src="https://charts.gc.ca/images/inclu/features/index/digital-transformation.jpg" typeof="Image" /> </a>
591
592<p><a href="https://charts.gc.ca/transformation/index-eng.html" target="_blank">CHS Digital Transformation Initiative</a></p>
593
594<p>At the Canadian Hydrographic Service, innovation is a guiding principle for the bold digital transformation initiative now underway.</p>
595</div>
596</div>
597
598<div class="col-sm-4">
599<div><a href="https://charts.gc.ca/publications/tables-eng.html" target="_blank"><img alt="2026 Tide Tables Available Now" class="img-responsive" src="https://charts.gc.ca/images/inclu/features/index/tides-feature.jpg" typeof="Image" /> </a>
600
601<p><a href="https://charts.gc.ca/publications/tables-eng.html" target="_blank">2026 Tide Tables Available Now</a></p>
602
603<p>Download your 2026 Canadian Tide and Current Tables now to help navigate safely through Canadian waters.</p>
604</div>
605</div>
606
607<div class="col-sm-4">
608<div><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="680635c9-5fd3-4638-9d77-8bc173ab11c4" href="/en/water-level-application-optimized-mobile-devices" target="_blank" title="Water level application – Optimized for mobile devices"><img alt="CHS Water Levels mobile app" class="img-responsive" src="/sites/tides/files/2025-03-05_chs-tidal-services-feature_option1.jpg" typeof="Image" /> </a>
609
610<p><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="680635c9-5fd3-4638-9d77-8bc173ab11c4" href="/en/water-level-application-optimized-mobile-devices" target="_blank" title="Water level application – Optimized for mobile devices">CHS Water Levels mobile app</a></p>
611
612<p>
612The more you know, the better prepared you’ll be when you head out onto the water. Tidal water levels are available here via our mobile application.</p>
613</div>
614</div>
615</div>
616</div>
617      
618  </section>
619
620    </div>
621  </div>
622
623  </section>
624</div>
625  </div>
626  
627</div>
628
629  </div>
630</article>
631
632
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634
635            <div class="pagedetails region region-content-footer container">
636    <div class="row">
637      <section id="block-dfo-sharewidgetblock" class="col-md-11 mrgn-tp-lg block block-wxt-library block-share-widget-block clearfix" data-block-plugin-id="share_widget_block">
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643<section id="block-dfo-datemodifiedblock" class="col-md-11 block block-wxt-library block-date-modified-block clearfix" data-block-plugin-id="date_modified_block">
644  
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646
647      <div class="datemod mrgn-bttm-lg"><dl id="wb-dtmd">
648<dt>Date modified:</dt>
649<dd><time property="dateModified">2022-06-28</time></dd></dl></div>
650  </section>
651
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653  </div>
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