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Donnacona to Beauport

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Forecast

Marine Forecast

Issued 03:00 AM EST 11 December 2025

Today Tonight and Friday.

Wind northeast 20 knots diminishing to light early this morning then increasing to west 15 to 25 late this morning. Wind becoming west 20 to 30 Friday morning then diminishing to west 15 Friday evening.

Snow ending overnight. Visibility 1 mile or less in snow.

Temperatures near minus 6.

Extended Forecast

Issued 06:00 AM EST 11 December 2025
Saturday Wind southerly 10 to 15 knots.
Sunday Wind west 15 knots.
Monday Wind light becoming southwest 10 to 15 knots late in the day.

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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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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 11 December 2025 Today Tonight and Friday At 3:00 a.m. EST today low 989 mb located near Trois-Rivières.
By 7:00 p.m. EST Friday low 972 mb located over Labrador Sea.

At 7:00 a.m. EST Friday ridge located on a line north-south over
Lake Superior.
By 7:00 p.m. EST Friday ridge located on a line north-south over
Lake Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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