{"id":8931,"date":"2026-08-28T10:50:15","date_gmt":"2026-08-28T08:50:15","guid":{"rendered":"https:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-aout-2026-a-8h50-jusqua-100-mm-de-pluie-en-48h-pourquoi-la-secheresse-persiste-en-france\/"},"modified":"2026-08-28T10:50:15","modified_gmt":"2026-08-28T08:50:15","slug":"le-28-aout-2026-a-8h50-jusqua-100-mm-de-pluie-en-48h-pourquoi-la-secheresse-persiste-en-france","status":"publish","type":"post","link":"https:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-aout-2026-a-8h50-jusqua-100-mm-de-pluie-en-48h-pourquoi-la-secheresse-persiste-en-france\/","title":{"rendered":"le 28 ao\u00fbt 2026 \u00e0 8h50  Jusqu\u2019\u00e0 100 mm de pluie en 48h : pourquoi la s\u00e9cheresse persiste en France"},"content":{"rendered":"<p>M\u00e9t\u00e9o\u00a0 Republi\u00e9 via Innoreader <a href=\"https:\/\/www.meteo-paris.com\/actualites\/jusqu-a-100-mm-de-pluie-en-deux-jours-sur-certaines-regions\" target=\"_blank\" class=\"feedzy-rss-link-icon\">Lire la Suite<\/a><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/illustration%20pluie%20orage.jpg\" \/><\/p>\n<p><em><strong>La d\u00e9gradation orageuse virulente ayant engendr\u00e9 d&#8217;importants cumuls de pluie sur certaines r\u00e9gions pourra-t-elle am\u00e9liorer la s\u00e9cheresse de ces derniers mois ?\u00a0<\/strong><\/em><\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<h2>Malgr\u00e9 les violents orages et jusqu\u2019\u00e0 100 mm de pluie, la s\u00e9cheresse reste tr\u00e8s marqu\u00e9e<\/h2>\n<p>Cet \u00e9t\u00e9 2026 a \u00e9t\u00e9 marqu\u00e9 par une succession exceptionnelle de vagues de chaleur et de canicules parfois intenses mais \u00e9galement par un temps particuli\u00e8rement sec \u00e0 l&#8217;\u00e9chelle du pays.<\/p>\n<p>\u00a0<\/p>\n<p>Si l\u2019hiver 2025\/2026 a \u00e9t\u00e9 globalement proche des normales, malgr\u00e9 un mois de f\u00e9vrier particuli\u00e8rement humide ayant provoqu\u00e9 d\u2019importantes inondations dans le Sud-Ouest. Le printemps a ensuite \u00e9t\u00e9 marqu\u00e9 par un fort ass\u00e8chement des sols, notamment en avril, o\u00f9 les pr\u00e9cipitations ont \u00e9t\u00e9 d\u00e9ficitaires de 70 % \u00e0 l&#8217;\u00e9chelle de la France. Les pluies g\u00e9n\u00e9ralis\u00e9es de la premi\u00e8re quinzaine de mai ont toutefois permis une am\u00e9lioration tr\u00e8s temporaire de la situation.<\/p>\n<p>L\u2019\u00e9t\u00e9 a ensuite \u00e9t\u00e9 exceptionnellement sec et chaud. Les pr\u00e9cipitations ont \u00e9t\u00e9 d\u00e9ficitaires de 50 % en juin puis de pr\u00e8s de 70 % en juillet, faisant de ces deux mois des p\u00e9riodes parmi les plus s\u00e8ches jamais observ\u00e9es. Plusieurs longues p\u00e9riodes sans pluie significative ont ainsi favoris\u00e9 la d\u00e9gradation de la situation hydrologique, tandis que les fortes chaleurs et les \u00e9pisodes caniculaires se sont multipli\u00e9s. Juillet 2026 est ainsi devenu le mois le plus chaud jamais enregistr\u00e9 en France, tandis que juin a \u00e9tabli un nouveau record pour un mois de juin.<\/p>\n<p>Ainsi, l&#8217;extension de la s\u00e9cheresse sur le territoire fran\u00e7ais a \u00e9t\u00e9 particuli\u00e8rement rapide depuis le d\u00e9but du mois de juin. 4% du territoire \u00e9tait ainsi concern\u00e9 par une s\u00e9cheresse d&#8217;une fr\u00e9quence sup\u00e9rieure \u00e0 25 ans au 1er juin 2026, puis 30% au 1er juillet, 65% au 1er ao\u00fbt et 77% \u00e0 la mi-ao\u00fbt. Ainsi, la quasi totalit\u00e9 de la France est concern\u00e9e par des restrictions d&#8217;eau en cette fin ao\u00fbt 2026.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/vigieau%2028%20aout.png\" \/><\/p>\n<p><em><strong>Restrictions d&#8217;eau sur le territoire fran\u00e7ais ce 28 ao\u00fbt 2026 <\/strong><\/em>&#8211; Vigi Eau<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<h2>Le retour de la pluie et des orages<\/h2>\n<p>\u00a0<\/p>\n<p>Cette semaine, la situation a n\u00e9anmoins sensiblement \u00e9volu\u00e9 sur notre pays. En effet, l&#8217;arriv\u00e9e d&#8217;une zone d\u00e9pressionnaire par l&#8217;Atlantique a engendr\u00e9 une nette d\u00e9stabilisation de la masse d&#8217;air depuis le milieu de semaine avec une d\u00e9gradation orageuse parfois virulente balayant la France d&#8217;ouest en est entre mercredi et ce vendredi.\u00a0<\/p>\n<p>Des ph\u00e9nom\u00e8nes violents ont ainsi \u00e9t\u00e9 observ\u00e9s sur de nombreuses r\u00e9gions sous ces orages avec notamment de puissantes rafales de vent, d\u00e9passant parfois les 120\/130km\/h (jusqu&#8217;\u00e0 142km\/h \u00e0 Chevry (77) ce 27 ao\u00fbt), des chutes de gr\u00eale localement dommageables et des inondations locales.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/orages%20mercredi%20jeudi.jpg\" \/><\/p>\n<p><em><strong>Diff\u00e9rents d\u00e9g\u00e2ts observ\u00e9s sur la France suite aux orages de ces derni\u00e8res 48 heures <\/strong><\/em>&#8211; Via twitter\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>M\u00eame si la d\u00e9gradation a \u00e9t\u00e9 sensiblement moins virulente qu&#8217;initialement pr\u00e9vue, les orages se sont tout de m\u00eame accompagn\u00e9s de pluies intenses sur une large partie du pays avec des cumuls d\u00e9passant parfois les 70-80mm, localement 100mm sur les secteurs les plus touch\u00e9s depuis le milieu de semaine. On a par exemple pu relever :\u00a0<\/p>\n<ul>\n<li>79.7 mm \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=52123003\">Chevillon (52)<\/a><\/li>\n<li>71.8 mm \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=28196003\">Illiers-Combray (28)<\/a><\/li>\n<li>70.9 mm \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=85097001\">La Gaubreti\u00e8re (85)<\/a><\/li>\n<li>63.9 mm \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=7037\">Rouen (76)<\/a><\/li>\n<li>61.7 mm \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=50456001\">Saint-Cl\u00e9ment (50)<\/a>\u00a0et \u00e0 \u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=15014001\">Aurillac Ville (15)<\/a><\/li>\n<li>61.1 mm\u00a0\u00e0\u00a0<a href=\"https:\/\/www.meteociel.fr\/temps-reel\/obs_villes.php?code2=15162003\">Riom-Montagnes (15)<\/a><\/li>\n<li>60.8mm \u00e0 Ourouer (18)\u00a0<\/li>\n<\/ul>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/cumul%2072h%2028%20aout.png\" \/><\/p>\n<p><em><strong>Cumuls de pr\u00e9cipitations sur les derni\u00e8res 72h en France <\/strong><\/em>&#8211; Via infoclimat.fr\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>Ces pluies localement intenses et assez \u00e9tendues ont permis de sensiblement am\u00e9liorer la situation de s\u00e9cheresse en surface sur les r\u00e9gions les plus touch\u00e9es. N\u00e9anmoins, d\u00e8s les premi\u00e8res profondeur, la s\u00e9cheresse des sols reste encore marqu\u00e9e malgr\u00e9 ces cumuls parfois importants, le d\u00e9ficit accumul\u00e9 ces derni\u00e8res semaines \u00e9tant encore trop important pour \u00eatre v\u00e9ritablement att\u00e9nu\u00e9 par une d\u00e9gradation orageuse de fin d&#8217;\u00e9t\u00e9 sur la majorit\u00e9 du pays, aussi virulente et \u00e9tendue soit-elle.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>Seules les r\u00e9gions du sud-est et du centre-ouest observent des sols plus humides en cette fin d&#8217;\u00e9t\u00e9, gr\u00e2ce aux d\u00e9gradations successives de cette fin ao\u00fbt.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.meteo-paris.com\/uploads\/actu\/hr%20sol%20anomalie%2028%20aout.png\" \/><\/p>\n<p><em><strong>Anomalies d&#8217;humidit\u00e9 des sols sur la France au 28 ao\u00fbt 2026 <\/strong><\/em>&#8211; Via Windy<\/p>\n<p>\u00a0<\/p>\n<p>Si les pluies vont persister sur le centre-est ces prochaines heures avec des cumuls localement importants \u00e0 la clef, pouvant d\u00e9passer les 40-50mm entre les Alpes et le Jura, et que de nouveaux fronts pluvio-orageux sont attendus entre ce week-end et le d\u00e9but de semaine prochaine sur la France, la situation de s\u00e9cheresse marqu\u00e9e va perdurer sur notre pays. Seule la mise en place d&#8217;un courant oc\u00e9anique perturb\u00e9 durable pourrait permettre un retour progressif \u00e0 la normal, ce qui n&#8217;est pour le moment pas envisag\u00e9.\u00a0<\/p>\n<p>\u00a0<\/p>\n<p><strong>\u00c0 lire \u00e9galement <\/strong>:<\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-paris.com\/actualites\/tornade-dans-l-aude-pourquoi-le-rechauffement-climatique-n-explique-pas-tout\">Tornade dans l&#8217;Aude : non, le lien avec le r\u00e9chauffement climatique n\u2019est pas si simple<\/a><\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-paris.com\/actualites\/un-gigantesque-mur-d-eau-ravage-une-vallee-des-centaines-de-personnes-portees-disparues\">Un gigantesque mur d\u2019eau ravage une vall\u00e9e, des centaines de personnes port\u00e9es disparues<\/a><\/p>\n<p>&gt;&gt;&gt;\u00a0<a href=\"https:\/\/www.meteo-paris.com\/actualites\/ete-2026-le-record-de-2003-pulverise-de-pres-de-10c\">\u00c9t\u00e9 2026 : le record de 2003 pulv\u00e9ris\u00e9 de pr\u00e8s de 1\u00b0C<\/a><\/p>\n<p>&gt;&gt;&gt; <a href=\"https:\/\/www.meteo-paris.com\/chronique\">Notre chronique sur les \u00e9v\u00e8nements climatiques en France, depuis 1850<\/a><\/p>\n<p>&gt;&gt;&gt; <a href=\"https:\/\/www.meteo-villes.com\/france\/previsions\">Notre bulletin m\u00e9t\u00e9o r\u00e9actualis\u00e9 quotidiennement<\/a><\/p>\n<p>&gt;&gt;&gt; <a href=\"https:\/\/x.com\/Meteovilles\">Notre compte Twitter tr\u00e8s suivi et r\u00e9f\u00e9rence dans tous les m\u00e9dias !<\/a><\/p>\n<p>\u00a0<\/p>\n<p>Auteur : <a href=\"https:\/\/x.com\/BergenTristan\">Tristan Bergen<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>M\u00e9t\u00e9o\u00a0 Republi\u00e9 via Innoreader Lire la Suite La d\u00e9gradation orageuse virulente ayant engendr\u00e9 d&#8217;importants cumuls de pluie sur certaines r\u00e9gions pourra-t-elle am\u00e9liorer la s\u00e9cheresse de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8932,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-8931","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-externes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>le 28 ao\u00fbt 2026 \u00e0 8h50 Jusqu\u2019\u00e0 100 mm de pluie en 48h : pourquoi la s\u00e9cheresse persiste en France - Meteo Sain-Bel<\/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:\/\/meteo-sain-bel.fr\/wp\/blog\/le-28-aout-2026-a-8h50-jusqua-100-mm-de-pluie-en-48h-pourquoi-la-secheresse-persiste-en-france\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" 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