{"id":2567,"date":"2025-11-09T21:22:20","date_gmt":"2025-11-09T20:22:20","guid":{"rendered":"https:\/\/acriv.org\/WP\/?page_id=2567"},"modified":"2025-11-09T21:22:20","modified_gmt":"2025-11-09T20:22:20","slug":"%e2%9b%88%ef%b8%8fmto-les-vents","status":"publish","type":"page","link":"https:\/\/acriv.org\/WP\/%e2%9b%88%ef%b8%8fmto-les-vents\/","title":{"rendered":"\u26c8\ufe0fMTO : LES VENTS"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\ud83c\udf2c\ufe0f Les vents en France et les brises locales<\/h1>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udded 1. Les grands vents dominants en France<\/h2>\n\n\n\n<p>Le vent en France est fortement influenc\u00e9 par :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>la <strong>position g\u00e9ographique<\/strong> (Atlantique, M\u00e9diterran\u00e9e, montagnes),<\/li>\n\n\n\n<li>la <strong>circulation g\u00e9n\u00e9rale d\u2019Ouest<\/strong> (flux d\u2019ouest dominant en Europe),<\/li>\n\n\n\n<li>et le <strong>relief<\/strong>, qui canalise ou renforce certains vents.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"608\" height=\"667\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/vents-de-france.jpg\" alt=\"\" class=\"wp-image-2571\" style=\"width:298px;height:auto\" srcset=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/vents-de-france.jpg 608w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/vents-de-france-273x300.jpg 273w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/vents-de-france-283x310.jpg 283w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/vents-de-france-96x105.jpg 96w\" sizes=\"auto, (max-width: 608px) 100vw, 608px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udf2a\ufe0f Les principaux vents r\u00e9gionaux<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Nom du vent<\/th><th>R\u00e9gion principale<\/th><th>Direction<\/th><th>Nature \/ Caract\u00e9ristiques<\/th><\/tr><\/thead><tbody><tr><td><strong>Mistral<\/strong><\/td><td>Vall\u00e9e du Rh\u00f4ne, Provence<\/td><td>Nord \/ Nord-Ouest<\/td><td>Froid, sec, violent, souffle apr\u00e8s un passage d\u00e9pressionnaire en M\u00e9diterran\u00e9e. Ciel tr\u00e8s d\u00e9gag\u00e9.<\/td><\/tr><tr><td><strong>Tramontane<\/strong><\/td><td>Languedoc-Roussillon<\/td><td>Nord \/ Nord-Ouest<\/td><td>Froid, sec, souvent fort, venant du Massif Central vers la M\u00e9diterran\u00e9e.<\/td><\/tr><tr><td><strong>Vent d\u2019Autan<\/strong><\/td><td>Sud-Ouest (Toulouse, Tarn, Lauragais)<\/td><td>Sud-Est<\/td><td>Chaud, humide et parfois violent avant un \u00e9pisode pluvieux.<\/td><\/tr><tr><td><strong>Marin<\/strong><\/td><td>Golfe du Lion, Languedoc<\/td><td>Sud-Est<\/td><td>Chaud, humide, souvent accompagn\u00e9 de nuages et pluie.<\/td><\/tr><tr><td><strong>Sirocco<\/strong><\/td><td>Sud de la M\u00e9diterran\u00e9e (Corse, C\u00f4te d\u2019Azur)<\/td><td>Sud \/ Sud-Est<\/td><td>Chaud, sec, charg\u00e9 de sable saharien.<\/td><\/tr><tr><td><strong>Vent d\u2019Ouest (ou flux d\u2019Ouest)<\/strong><\/td><td>Atlantique et grande partie de la France<\/td><td>Ouest<\/td><td>Doux et humide, vents dominants en France m\u00e9tropolitaine.<\/td><\/tr><tr><td><strong>Bise<\/strong><\/td><td>Est et Nord-Est de la France<\/td><td>Nord-Est<\/td><td>Froid et sec, en hiver, souvent li\u00e9 \u00e0 un anticyclone sur le Nord de l\u2019Europe.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf0a 2. La <strong>brise de mer<\/strong> et la <strong>brise de terre<\/strong><\/h2>\n\n\n\n<p>Ce sont des <strong>vents locaux thermiques<\/strong>, dus aux diff\u00e9rences de temp\u00e9rature entre la <strong>terre<\/strong> et la <strong>mer<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"437\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-1024x437.png\" alt=\"\" class=\"wp-image-2570\" style=\"width:780px;height:auto\" srcset=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-1024x437.png 1024w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-300x128.png 300w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-768x328.png 768w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-800x342.png 800w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-650x278.png 650w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-310x132.png 310w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11-150x64.png 150w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-11.png 1503w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\u2600\ufe0f <strong>Brise de mer (jour)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quand :<\/strong> En journ\u00e9e, g\u00e9n\u00e9ralement de la fin de matin\u00e9e jusqu\u2019au soir.<\/li>\n\n\n\n<li><strong>Cause :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Le <strong>sol se r\u00e9chauffe plus vite<\/strong> que la mer \u2192 l\u2019air au-dessus de la terre devient chaud et monte (basse pression locale).<\/li>\n\n\n\n<li>L\u2019air plus frais de la mer se d\u00e9place vers la c\u00f4te \u2192 <strong>vent de la mer vers la terre<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Effets :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Rafra\u00eechit les zones c\u00f4ti\u00e8res l\u2019apr\u00e8s-midi.<\/li>\n\n\n\n<li>Intensit\u00e9 : 10 \u00e0 20 n\u0153uds typiquement.<\/li>\n\n\n\n<li>Visible sur les cartes m\u00e9t\u00e9o (petite rotation locale du vent).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>En aviation :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Modifie l\u2019orientation de la piste \u00e0 privil\u00e9gier.<\/li>\n\n\n\n<li>Peut cr\u00e9er de la <strong>turbulence<\/strong> \u00e0 la limite terre\/mer.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udf19 <strong>Brise de terre (nuit)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quand :<\/strong> La nuit, surtout par ciel clair et vent faible.<\/li>\n\n\n\n<li><strong>Cause :<\/strong>\n<ul class=\"wp-block-list\">\n<li>La <strong>terre se refroidit plus vite<\/strong> que la mer \u2192 l\u2019air au-dessus de la terre devient plus dense et descend.<\/li>\n\n\n\n<li>Il s\u2019\u00e9coule alors vers la mer \u2192 <strong>vent de la terre vers la mer<\/strong>.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Effets :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Vent plus faible (souvent 5\u201310 n\u0153uds).<\/li>\n\n\n\n<li>Sens inverse de la brise de mer.<\/li>\n\n\n\n<li>Souvent ressenti sur les c\u00f4tes en d\u00e9but de nuit, dispara\u00eet avant le lever du soleil.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udfd4\ufe0f 3. La <strong>brise de vall\u00e9e<\/strong> et la <strong>brise de montagne<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"345\" height=\"128\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-9.png\" alt=\"\" class=\"wp-image-2568\" style=\"width:574px;height:auto\" srcset=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-9.png 345w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-9-300x111.png 300w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-9-310x115.png 310w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-9-150x56.png 150w\" sizes=\"auto, (max-width: 345px) 100vw, 345px\" \/><\/figure>\n<\/div>\n\n\n<p>Ces vents thermiques apparaissent dans les r\u00e9gions montagneuses et sont dus \u00e0 la diff\u00e9rence d\u2019\u00e9chauffement entre les <strong>versants<\/strong> et l\u2019<strong>altitude<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"466\" src=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-1024x466.png\" alt=\"\" class=\"wp-image-2569\" style=\"width:739px;height:auto\" srcset=\"https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-1024x466.png 1024w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-300x137.png 300w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-768x350.png 768w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-800x364.png 800w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-650x296.png 650w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-310x141.png 310w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10-150x68.png 150w, https:\/\/acriv.org\/WP\/wp-content\/uploads\/2025\/11\/image-10.png 1495w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udf1e <strong>Brise de vall\u00e9e (jour)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quand :<\/strong> En journ\u00e9e, surtout en \u00e9t\u00e9 par ciel d\u00e9gag\u00e9.<\/li>\n\n\n\n<li><strong>Cause :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Les pentes et fonds de vall\u00e9es se <strong>r\u00e9chauffent<\/strong>, l\u2019air s\u2019\u00e9l\u00e8ve et cr\u00e9e une aspiration d\u2019air venant du bas de la vall\u00e9e.<br>\u2192 <strong>Vent montant<\/strong> : de la plaine vers les sommets.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Effets :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Favorise les <strong>ascendances thermiques<\/strong> utiles au vol \u00e0 voile.<\/li>\n\n\n\n<li>Peut \u00eatre renforc\u00e9e par l\u2019orientation du relief.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udf1c <strong>Brise de montagne (nuit)<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quand :<\/strong> La nuit, lorsque les pentes se refroidissent rapidement.<\/li>\n\n\n\n<li><strong>Cause :<\/strong>\n<ul class=\"wp-block-list\">\n<li>L\u2019air froid descend le long des versants vers la vall\u00e9e.<br>\u2192 <strong>Vent descendant<\/strong> : des sommets vers le bas.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Effets :<\/strong>\n<ul class=\"wp-block-list\">\n<li>Air plus froid et stable dans le fond de la vall\u00e9e.<\/li>\n\n\n\n<li>Risque de brouillard et d\u2019inversions thermiques au petit matin.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\uddd3\ufe0f 4. Quand et o\u00f9 soufflent ces brises<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Type de brise<\/th><th>Moment<\/th><th>Direction<\/th><th>Conditions favorables<\/th><\/tr><\/thead><tbody><tr><td>Brise de mer<\/td><td>Jour<\/td><td>Mer \u2192 Terre<\/td><td>Beau temps, ciel clair, vent g\u00e9n\u00e9ral faible<\/td><\/tr><tr><td>Brise de terre<\/td><td>Nuit<\/td><td>Terre \u2192 Mer<\/td><td>Nuit claire, vent calme<\/td><\/tr><tr><td>Brise de vall\u00e9e<\/td><td>Jour<\/td><td>Bas \u2192 Haut<\/td><td>Fort ensoleillement, air sec<\/td><\/tr><tr><td>Brise de montagne<\/td><td>Nuit<\/td><td>Haut \u2192 Bas<\/td><td>Refroidissement nocturne rapide<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83e\udde0 En r\u00e9sum\u00e9<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Type de vent<\/th><th>Origine<\/th><th>Direction<\/th><th>Effet notable<\/th><\/tr><\/thead><tbody><tr><td>Mistral \/ Tramontane<\/td><td>M\u00e9t\u00e9o \/ Pression<\/td><td>Nord\/NW<\/td><td>Froid, sec, fort<\/td><\/tr><tr><td>Marin \/ Autan<\/td><td>M\u00e9t\u00e9o \/ D\u00e9pression m\u00e9diterran\u00e9enne<\/td><td>Sud\/SE<\/td><td>Chaud, humide<\/td><\/tr><tr><td>Brise de mer<\/td><td>Diff. thermique jour<\/td><td>Mer \u2192 Terre<\/td><td>Rafra\u00eechit, turbulence c\u00f4ti\u00e8re<\/td><\/tr><tr><td>Brise de terre<\/td><td>Diff. thermique nuit<\/td><td>Terre \u2192 Mer<\/td><td>Faible, nocturne<\/td><\/tr><tr><td>Brise de vall\u00e9e<\/td><td>Chauffage solaire<\/td><td>Bas \u2192 Haut<\/td><td>Ascendances, convection<\/td><\/tr><tr><td>Brise de montagne<\/td><td>Refroidissement<\/td><td>Haut \u2192 Bas<\/td><td>Air froid, stable, inversions<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\ud83c\udf2c\ufe0f Les vents en France et les brises locales \ud83e\udded 1. Les grands vents dominants en France Le vent en France est fortement influenc\u00e9 par : \ud83c\udf2a\ufe0f Les principaux vents r\u00e9gionaux Nom du vent R\u00e9gion principale Direction Nature \/ Caract\u00e9ristiques Mistral Vall\u00e9e du Rh\u00f4ne, Provence Nord \/ Nord-Ouest Froid, sec, violent, souffle apr\u00e8s un passage d\u00e9pressionnaire en M\u00e9diterran\u00e9e. Ciel tr\u00e8s<\/p>\n<p><a class=\"more-link\" href=\"https:\/\/acriv.org\/WP\/%e2%9b%88%ef%b8%8fmto-les-vents\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2567","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2567","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/comments?post=2567"}],"version-history":[{"count":1,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2567\/revisions"}],"predecessor-version":[{"id":2572,"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/pages\/2567\/revisions\/2572"}],"wp:attachment":[{"href":"https:\/\/acriv.org\/WP\/wp-json\/wp\/v2\/media?parent=2567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}