Language selection

Weather shortcuts

Grand Manan

Forecast

Marine Forecast

Issued 08:00 PM ADT 05 October 2026

Tonight and Tuesday.

Strong wind warning in effect.

Wind west 20 to 25 knots veering to northwest 30 late this evening. Wind northwest 30 Tuesday.

Waves

Issued 05:00 PM ADT 05 October 2026
Tonight and Tuesday. Seas 1 to 2 metres building to 2 to 3 early Tuesday morning.

Extended Forecast

Issued 03:30 PM ADT 05 October 2026
Wednesday Wind northwest 15 knots backing to southwest 15 to 20 in the afternoon.
Thursday Wind southwest 20 knots.
Friday Wind westerly 15 to 20 knots.

Stay connected

ATOM

Weather Conditions

Skip Image

Zoom-in to make a selection

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
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

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

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 9:06 PM ADT 05 October 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 5 October 2026 Tonight and Tuesday At 8:00 p.m. ADT tonight low located over the Gulf of St. Lawrence.
By 10:00 a.m. ADT Tuesday intensifying low located over the Quebec
Lower North Shore.

Marine Weather Statement

Issued 7:50 PM ADT 5 October 2026 A low pressure system will continue to intensify tonight as it moves
into the Lower North Shore of Quebec. Strong to gale force
southeasterlies are expected ahead of this system. Strong to gale
force westerlies are expected across the district on Tuesday in the
wake of this low, with winds possibly reaching near storm force over
Gulf of St. Lawrence waters.

Marine interests are advised that gale warnings are in effect for
Fundy, eastern shore, Sable, Fourchu, Banquereau, Cabot Strait, and
all Gulf of St. Lawrence waters.

St. Lawrence - St. Lawrence River Area

Another Region

Date modified: