Language selection

My Weather Profile Weather Topics  | 

Georgian Bay


Marine Forecast

Issued 10:30 AM EST 05 December 2021

Today Tonight and Monday.

Gale warning in effect.

Wind east 15 knots veering to southeast 15 near noon then increasing to southeast 30 this afternoon. Wind diminishing to south 20 late overnight then veering to southwest 20 early Monday morning. Wind increasing to southwest 30 late Monday morning and to southwest 35 near noon Monday. Wind veering to west 40 Monday afternoon then to northwest 35 Monday evening.

Scattered flurries changing to snow this afternoon then to rain or snow this evening. Scattered showers Monday morning and ending Monday morning. Flurries Monday afternoon and evening. Visibility 1 mile or less in precipitation.


Issued 10:30 AM EST 05 December 2021
Today Tonight and Monday. Waves 0.5 to 1 metre building to 2 to 3 early this evening then subsiding to 1.5 early Monday morning. Waves building to 2 to 3 near noon Monday and to 3 to 4 Monday evening.

Extended Forecast

Issued 03:00 AM EST 05 December 2021
Tuesday Wind northwest 25 knots diminishing to west 15 in the morning.
Wednesday Wind west 15 knots diminishing to light.
Thursday Wind south 15 knots increasing to south 25 late in the day.

Ice Forecast*

Issued 12:00 PM EST 5 December 2021 Today Tonight and Monday Ice free.

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


[ Canadian Ice Service ]

Stay connected


Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Great Lakes - Lake Huron marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 5 December 2021 Today Tonight and Monday

Ice Coverage

Ice free.


Warnings (In effect)

Gale warning in effect

Georgian Bay

Issued 10:30 AM EST 05 December 2021

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.


Technical Marine Synopsis

Issued 10:30 AM EST 5 December 2021 Today Tonight and Monday At 10:30 a.m. EST today departing ridge located on a line
north-south over Ottawa.

At 10:30 a.m. EST today deepening low 1001 mb located over eastern
North Dakota.
By 10:30 a.m. EST Monday deepening low 991 mb located north of
Lake Nipissing.

Great Lakes - Lake Huron Area

Another Region

What we are doing


Hello Weather

Hello Weather: our upgraded telephone weather service is here. 1-833-794-3556 or 1-833-79HELLO.

Date modified: