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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 31 October 2026

Today Tonight and Sunday.

Wind northwest 15 knots diminishing to northwest 10 early this morning then backing to west 10 near noon. Wind increasing to southwest 15 early this evening then diminishing to southwest 10 near noon Sunday.

Waves

Issued 03:00 AM EDT 31 October 2026
Today Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning then building to 0.5 to 1 this evening. Waves subsiding to 0.5 or less Sunday afternoon.

Extended Forecast

Issued 03:00 AM EDT 31 October 2026
Monday Wind light.
Tuesday Wind light becoming south 15 knots.
Wednesday Wind light increasing to southeast 20 knots late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Sarnia Chris Hadfield Airport Peterborough Municipal Airport Toronto City Centre Airport Hamilton Munro Int'l Airport Goderich Southeast Shoal Western Islands St. Catharines / Niagara District Airport CFB Trenton Port Weller Wiarton Airport Lake Simcoe Regional Airport Vineland Station Tobermory Point Pelee Welland-Pelham Point Petre Cobourg Windsor Airport Harrow AAFC Erieau Long Point Port Colborne Oshawa Executive Airport Burlington Lift Bridge Greater Sudbury Airport Port Colborne - 45142 South Georgian Bay - 45143 Grimsby - 45139 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Georgian Bay - 45137 North Bay Airport Gore Bay-Manitoulin Airport Prince Edward Point - 45135 Brockville Grenadier Island Kingston Airport Port Stanley - 45132 Collingwood Lagoon City Muskoka Airport Parry Sound Harbour
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 31 October 2026 Today Tonight and Sunday At 3:00 a.m. EDT today high 1031 mb located over Michigan.
By 3:00 a.m. EST Sunday high 1035 mb located over New York State.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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