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Beauport to L'Isle-aux-Coudres

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 09 August 2026

Tonight and Monday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots diminishing to light this evening then becoming southwest 15 Monday morning. Wind diminishing to light Monday evening.

Scattered showers ending this evening. Showers Monday evening with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 AM EDT 09 August 2026
Tuesday Wind light increasing to west 10 to 20 knots in the morning.
Wednesday Wind southwest 10 to 15 knots.
Thursday 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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Beauport to L'Isle-aux-Coudres

Issued 3:00 PM EDT 09 August 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 9 August 2026 Tonight and Monday At 3:00 p.m. EDT today trough located from James Bay to Rimouski.
By 8:00 p.m. EDT Monday trough located from Ungava Bay to the
Quebec Lower North Shore.

At 3:00 p.m. EDT today ridge located on a line north-south over
Lake Ontario.
By 8:00 p.m. EDT Monday ridge located on a line north-south over
New Brunswick.

At 3:00 p.m. EDT today low 1012 mb located over the Midwestern
states.
By 8:00 p.m. EDT Monday low 1008 mb located near Montréal.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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