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Grand Manan

Forecast

Marine Forecast

Issued 08:00 PM ADT 12 September 2026

Tonight and Sunday.

Wind southwesterly 10 to 15 knots increasing to southerly 15 to 20 near noon Sunday.

Rain and fog patches Sunday evening.

Waves

Issued 05:00 PM ADT 12 September 2026
Tonight and Sunday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 12 September 2026
Monday Wind westerly 15 knots increasing to northwest 25 in the afternoon.
Tuesday Wind northerly 15 knots diminishing to light.
Wednesday Wind southwest 15 knots.

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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

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 12 September 2026 Tonight and Sunday At 8:00 p.m. ADT tonight ridge located over the southern Marine
District.
By 3:00 a.m. ADT Sunday departing ridge located over the eastern
Marine District.

At 3:00 a.m. ADT Sunday trough located from Quebec to the Great
Lakes.
By 8:00 p.m. ADT Sunday trough located from Labrador to Cape Cod.

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