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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 12 April 2026

Today Tonight and Monday.

Wind light increasing to southwest 20 to 30 knots Monday morning.

Rain overnight and Monday.

Extended Forecast

Issued 06:00 PM EDT 11 April 2026
Monday Wind southeast 10 to 15 knots increasing to southwest 20 to 30 in the morning.
Tuesday Wind northeast 15 knots.
Wednesday Wind northeast 10 to 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 12 April 2026 Today Tonight and Monday At 3:00 a.m. EDT today departing low 1001 mb located over
Newfoundland.

At 3:00 a.m. EDT today ridge located from New England to the
Ungava Peninsula.
By 8:00 p.m. EDT Monday ridge located from Newfoundland to
Labrador Sea.

At 8:00 p.m. EDT tonight low 994 mb located west of Lake Superior.
By 8:00 p.m. EDT Monday low 1002 mb located near Pointe-des-Monts.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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