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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 10:08 AM EDT 28 July 2026

Today Tonight and Wednesday.

Wind light increasing to northeast 10 to 20 knots early this afternoon then becoming light early Wednesday morning.

Scattered showers today and this evening with a risk of thunderstorms. Scattered showers Wednesday late in the day. Mist dissipating late this morning. Visibility as low as 1 mile in mist.

Waves

Issued 03:00 AM EDT 28 July 2026
Today Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EDT 28 July 2026
Thursday Wind northeast 10 to 15 knots.
Friday Wind northeast 10 to 15 knots diminishing to light late in the day.
Saturday Wind light.

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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 AM EDT 28 July 2026 Today Tonight and Wednesday At 3:00 a.m. EDT today trough located from Lake Michigan to
Labrador.
By 8:00 p.m. EDT Wednesday quasi-stationary trough located over
Montréal to Sept-Îles.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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