Grand Manan
Forecast
Marine Forecast
Issued 03:00 AM ADT 13 August 2026
Today Tonight and Friday.
Wind light becoming variable 15 knots near noon then diminishing to light early this evening. Wind becoming northwest 15 overnight. Wind northwest 15 Friday.
Scattered showers this afternoon and this evening with a risk of thunderstorms. Fog patches forming near noon and dissipating Friday morning.
Waves
Issued 05:00 AM ADT 13 August 2026
Today Tonight and Friday.
Seas 1 metre or less.
Extended Forecast
Issued 03:00 AM ADT 13 August 2026
Saturday
Wind northwest 15 knots backing to southwest
15 in the afternoon.
Sunday
Wind light becoming southwest 15
knots.
Monday
Wind light increasing to variable 15 to 20
knots.
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Weather Conditions
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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 3:00 AM ADT 13 August 2026 Today Tonight and Friday At 3:00 a.m. ADT today trough located over New England.By 8:00 p.m. ADT tonight trough located from the Gaspe Peninsula
to Cape Cod.
At 10:00 a.m. ADT Friday low located over Cabot Strait.
Atlantic - Maritimes Area
- Anticosti - northeastern half
- Anticosti - southwestern half
- Banquereau
- Bras d'Or Lakes
- Browns Bank
- Cabot Strait - northern half
- Cabot Strait - southern half
- Chaleur - Miscou
- Eastern Shore
- East Coast
- East Scotian Slope
- Fourchu
- Fundy
- Georges Bank
- Grand Manan
- Gulf - Magdalen - northeastern half
- Gulf - Magdalen - southwestern half
- Gulf - Port au Port
- Halifax Harbour and Approaches
- LaHave Bank
- Laurentian Fan
- Lurcher
- L'Isle-aux-Coudres to Tadoussac
- Northumberland Strait - eastern half
- Northumberland Strait - western half
- Pointe à Michel to Pointe-des-Monts
- Pointe-des-Monts to Anticosti - northern half
- Pointe-des-Monts to Anticosti - southern half
- Sable
- Southeastern Grand Banks
- Southwestern Grand Banks
- Southwestern Shore
- Southwest Coast
- South Coast
- Tadoussac to Pointe à Michel
- West Scotian Slope
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ATOM