{"id":350460,"date":"2026-08-02T07:00:00","date_gmt":"2026-08-02T05:00:00","guid":{"rendered":"https:\/\/legrandcontinent.eu\/fr\/?p=350460"},"modified":"2026-08-03T17:25:42","modified_gmt":"2026-08-03T15:25:42","slug":"la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau","status":"publish","type":"post","link":"https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/","title":{"rendered":"La s\u00e9cheresse a fait baisser le cours des fleuves europ\u00e9ens \u00e0 leur niveau le plus bas"},"content":{"rendered":"\n<p>Selon les pr\u00e9visions de l&rsquo;Administration f\u00e9d\u00e9rale allemande des voies navigables et de la navigation, le Rhin devrait atteindre son niveau d&rsquo;eau le plus faible jamais mesur\u00e9 \u00e0 la station de Kaub, pr\u00e8s de Coblence, aux alentours du mardi 4 ao\u00fbt. Il se situait \u00e0 seulement 26 cm vendredi 31 juillet et devrait tomber \u00e0 24 cm en d\u00e9but de semaine prochaine.<\/p>\n\n\n\n<p>Le Rhin n\u2019est pas le seul grand fleuve europ\u00e9en \u00e0 \u00eatre touch\u00e9 par la s\u00e9cheresse.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le d\u00e9bit moyen du Danube, qui traverse les territoires de 10 pays, du sud de l&rsquo;Allemagne \u00e0 la mer Noire, est tomb\u00e9 mercredi 29 \u00e0 1 600 m\u00e8tres cubes par seconde \u00e0 son entr\u00e9e sur le territoire roumain, soit trois fois moins que sa moyenne mesur\u00e9e sur le mois de juillet (4 700 m\u00e8tres cubes par seconde).<\/li>\n\n\n\n<li>En France, les d\u00e9bits du Rh\u00f4ne et de la Sa\u00f4ne se situent eux aussi \u00e0 des niveaux historiquement bas. Sur le Rh\u00f4ne, les coefficients d&rsquo;hydraulicit\u00e9 mensuels de juin, compris entre 0,46 et 0,65, traduisent une situation tr\u00e8s d\u00e9ficitaire sur l&rsquo;ensemble du fleuve&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-1-350460' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote note-digits-1'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/#easy-footnote-bottom-1-350460' title='&lt;a href=&quot;https:\/\/www.rhone-mediterranee.eaufrance.fr\/sobriete-des-usages-et-partage-de-la-ressourcesituation-hydrologique-sur-le-bassin-rhone\/juin-2026&quot;&gt;Juin 2026&amp;#160;: un d\u00e9but d&amp;rsquo;\u00e9t\u00e9 extr\u00eamement sec et chaud sur l&amp;rsquo;ensemble du bassin&lt;\/a&gt;, Eaufrance, 29 juillet 2026.'><sup>1<\/sup><\/a><\/span><\/span>.<\/li>\n\n\n\n<li>En Italie, le d\u00e9bit du P\u00f4 est quatre fois inf\u00e9rieur \u00e0 sa normale de saison, ce qui favorise la p\u00e9n\u00e9tration d&rsquo;eau de mer dans le fleuve jusqu&rsquo;\u00e0 20 kilom\u00e8tres en amont \u2013 deux fois plus que lors des \u00e9pisodes de s\u00e9cheresse des ann\u00e9es 1980.<\/li>\n<\/ul>\n\n\n\n<div class=\"iframe-container wp-block-image wp-block-image-medium  iframe-dw\">\n\t<div>\n\t\t<iframe class=\"absolute w-full h-full pin-t pin-l\" title=\"titolo\" aria-label=\"Interactive line chart\" src=\"\/\/datawrapper.dwcdn.net\/YmjXG\/\" scrolling=\"no\" frameborder=\"0\"><\/iframe>\n\t<\/div>\n<\/div>\n\n\n\n<p>Ces faibles niveaux relev\u00e9s \u00e0 l\u2019\u00e9chelle continentale limitent consid\u00e9rablement la navigation fluviale, qui joue un r\u00f4le important pour les industries chimiques, les raffineries de p\u00e9trole, les fonderies d&rsquo;acier ou les centrales \u00e0 charbon&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-2-350460' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote note-digits-1'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/#easy-footnote-bottom-2-350460' title='Javier Blas, \u00ab&amp;#160;&lt;a href=&quot;https:\/\/www.bloomberg.com\/opinion\/articles\/2026-07-29\/the-rhine-is-the-latest-critical-oil-waterway-in-danger-of-closing?utm_source=semafor&quot;&gt;Another Critical Oil Waterway Is About to Close&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;Bloomberg&lt;\/em&gt;, 29 juillet 2026.'><sup>2<\/sup><\/a><\/span><\/span>. Le Rhin connecte \u00e9galement des sites de production situ\u00e9s en Allemagne, en Suisse et en France aux ports n\u00e9erlandais, dont Rotterdam, le premier port europ\u00e9en en termes de marchandises trait\u00e9es.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sur le Rhin, la navigation est impossible lorsque le niveau d\u2019eau passe en-dessous des 40 cm \u00e0 la station de Kaub.<\/li>\n\n\n\n<li>Si le niveau d&rsquo;eau baisse, les navires r\u00e9duisent la quantit\u00e9 de marchandises transport\u00e9es, ce qui entra\u00eene g\u00e9n\u00e9ralement une hausse des co\u00fbts.<\/li>\n\n\n\n<li>Le prix pour transporter des marchandises par p\u00e9niche depuis Rotterdam vers des sites au Sud de Kaub a bondi cette semaine \u00e0 145 euros par tonne, soit cinq fois plus qu\u2019\u00e0 cette m\u00eame p\u00e9riode de l\u2019ann\u00e9e l\u2019an dernier (29 euros).<\/li>\n<\/ul>\n\n\n\n<div class=\"iframe-container wp-block-image wp-block-image-medium  iframe-dw\">\n\t<div>\n\t\t<iframe class=\"absolute w-full h-full pin-t pin-l\" title=\"titolo\" aria-label=\"Interactive line chart\" src=\"\/\/datawrapper.dwcdn.net\/mAfMY\/\" scrolling=\"no\" frameborder=\"0\"><\/iframe>\n\t<\/div>\n<\/div>\n\n\n\n<p>Suite aux pr\u00e9c\u00e9dents \u00e9pisodes de s\u00e9cheresse, notamment en 2018, lorsque plusieurs sites industriels situ\u00e9s le long du Rhin avaient \u00e9t\u00e9 contraints de suspendre leurs activit\u00e9s, de nombreuses entreprises allemandes ont r\u00e9organis\u00e9 leurs cha\u00eenes d&rsquo;approvisionnement en privil\u00e9giant d\u2019autres modes de transport, comme le fret routier, ce qui pourrait limiter l\u2019impact \u00e9conomique de la baisse des niveaux d\u2019eau&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-3-350460' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote note-digits-1'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/#easy-footnote-bottom-3-350460' title='\u00ab&amp;#160;&lt;a href=&quot;https:\/\/www.zeit.de\/wissenschaft\/umwelt\/2026-07\/rhein-pegel-kaub-niedrigwasser-binnenschifffahrt&quot;&gt;Am Rhein droht niedrigster je gemessener Wasserstand&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;Die Zeit&lt;\/em&gt;, 29 juillet 2026.'><sup>3<\/sup><\/a><\/span><\/span>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Selon l&rsquo;Institut de Kiel pour l&rsquo;\u00e9conomie mondiale, la baisse des niveaux d\u2019eau en Allemagne pourrait entra\u00eener une baisse du PIB de 0,1 \u00e0 0,2&#160;% au troisi\u00e8me trimestre&nbsp;<span class='whitespace-nowrap'><span id='easy-footnote-4-350460' class='easy-footnote-margin-adjust'><\/span><span class='easy-footnote note-digits-1'><a href='https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/#easy-footnote-bottom-4-350460' title='Maria Martinez, \u00ab&amp;#160;&lt;a href=&quot;https:\/\/www.reuters.com\/world\/europe\/german-economy-grows-by-02-q2-preliminary-data-shows-2026-07-30\/&quot;&gt;German inflation rises in July, economy grows more than expected in Q2&lt;\/a&gt;&amp;#160;\u00bb, &lt;em&gt;Reuters&lt;\/em&gt;, 30 juillet 2026.'><sup>4<\/sup><\/a><\/span><\/span>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>En Allemagne, la chute des d\u00e9bits du Rhin pourrait co\u00fbter jusqu\u2019\u00e0 0,2&#160;% du PIB au troisi\u00e8me trimestre.<\/p>\n","protected":false},"author":40,"featured_media":350463,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"templates\/post-briefings.php","format":"standard","meta":{"_acf_changed":true,"_trash_the_other_posts":false,"_yoast_wpseo_estimated-reading-time-minutes":3,"_lgc_tts_voice":"","_lgc_tts_publish":false,"_lgc_tts_history_item_id":"","_lgc_tts_generated_at":"","_lgc_tts_status":"","_lgc_tts_error":"","footnotes":""},"categories":[3468],"tags":[],"staff":[],"editorial_format":[4942],"serie":[],"audience":[],"geo":[1917],"class_list":["post-350460","post","type-post","status-publish","format-standard","hentry","category-donnees-qui-changent-la-donne","editorial_format-actu-breves","geo-europe"],"acf":{"open_in_webview":false,"accent":"default","_thumbnail_id":350463,"excerpt":"En Allemagne, la chute des d\u00e9bits du Rhin pourrait co\u00fbter jusqu\u2019\u00e0 0,2 % du PIB au troisi\u00e8me trimestre.","display_date":"","new_abstract":true},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>La s\u00e9cheresse a fait baisser le niveau des fleuves europ\u00e9ens \u00e0 leur plus bas niveau<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/legrandcontinent.eu\/fr\/2026\/08\/02\/la-secheresse-a-fait-baisser-le-niveau-des-fleuves-europeens-a-leur-plus-bas-niveau\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La s\u00e9cheresse a fait baisser le niveau des fleuves europ\u00e9ens \u00e0 leur plus bas niveau\" \/>\n<meta property=\"og:description\" content=\"En Allemagne, la chute des d\u00e9bits du Rhin pourrait co\u00fbter jusqu\u2019\u00e0 0,2&#160;% du PIB au troisi\u00e8me 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