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L'Isle-aux-Coudres to Tadoussac

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Marine Forecast

Issued 03:00 AM EST 13 December 2025

Today Tonight and Sunday.

Wind southwest 15 knots diminishing to light early this evening then becoming southwest 10 to 15 near noon Sunday. Wind veering to northwest 15 Sunday evening.

Flurries overnight and Sunday. Visibility as low as 1 mile in flurries.

Temperatures near minus 5.

Waves

Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday. Over open water seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EST 13 December 2025
Monday Wind southwest 15 to 20 knots.
Tuesday Wind southwest 15 to 20 knots.
Wednesday Wind southwest 15 to 25 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts 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 Miscou Island Kouchibouguac La Pocatière
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buoy Buoy
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 EST 13 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today ridge located over Montréal.
By 7:00 p.m. EST tonight dissipating ridge located over Matane.

At 3:00 a.m. EST today low 1004 mb located over western Ontario.
By 3:00 a.m. EST Sunday dissipating low 1013 mb located over
Québec city.

At 7:00 a.m. EST Sunday ridge located from the Midwestern states
to Hudson Bay.
By 7:00 p.m. EST Sunday ridge located from the Great Lakes to
Ungava Bay.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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