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Beauport to L'Isle-aux-Coudres

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 18 May 2026

Today Tonight and Tuesday.

Wind light becoming northeast 15 knots overnight then becoming southwest 10 to 15 Tuesday evening.

Showers overnight and Tuesday. Risk of thunderstorms overnight. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 PM EDT 17 May 2026
Tuesday Wind northeast 15 knots.
Wednesday Wind southwest 15 knots veering to northwest 10 to 20.
Thursday Wind northwest 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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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 18 May 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today ridge located from James Bay to Tadoussac.
By 8:00 p.m. EDT Tuesday ridge located on a line northwest-southeast
over the Strait of Belle Isle.

At 3:00 a.m. EDT today low 999 mb located over the Midwestern
states.
By 8:00 p.m. EDT Tuesday low 996 mb located west of Lake Saint-Jean.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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