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Donnacona to Beauport

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 16 September 2026

Today Tonight and Thursday.

Wind light becoming southwest 10 to 15 knots this morning then becoming light early this evening. Wind becoming northeast 10 to 15 Thursday morning then becoming light Thursday afternoon.

Scattered showers ending this morning. Scattered showers this afternoon and this evening.

Extended Forecast

Issued 06:00 AM EDT 16 September 2026
Friday Wind light becoming northwest 15 knots in the morning.
Saturday Wind light.
Sunday 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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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 EDT 16 September 2026 Today Tonight and Thursday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Lake Huron.
By 8:00 a.m. EDT Thursday dissipating trough located on a line
northeast-southwest over Newfoundland.

At 3:00 a.m. EDT today high 1027 mb located over Manitoba.
By 8:00 p.m. EDT Thursday high 1020 mb located over the Gulf of
St. Lawrence.

At 8:00 p.m. EDT Thursday approaching trough located over James Bay.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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