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L'Isle-aux-Coudres to Tadoussac

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Forecast

Marine Forecast

Issued 03:00 PM EDT 13 August 2026

Tonight and Friday.

Wind southwest 10 to 15 knots with gusts to 30 near thunderstorms. Wind becoming light this evening then becoming westerly 10 to 15 Friday morning.

Scattered showers ending near midnight with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 13 August 2026
Tonight and Friday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 13 August 2026
Saturday Wind light becoming southwest 10 to 15 knots in the afternoon.
Sunday Wind light becoming southwest 10 to 15 knots.
Monday Wind light becoming northeast 10 to 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport La Pocatière Miscou Island Mont-Joli Airport
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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 13 August 2026 Tonight and Friday At 3:00 p.m. EDT today trough located from the Strait of Belle
Isle to New England.
By 8:00 p.m. EDT Friday trough located from Labrador to Cabot
Strait.

At 8:00 p.m. EDT Friday approaching high 1024 mb located over
northeastern Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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