Language selection

Government of Canada / Gouvernement du Canada

Search

Weather shortcuts

Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 08 August 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind south 15 knots veering to southwest 15 early this morning then to west 15 this afternoon. Wind increasing to northwest 20 this evening then diminishing to northwest 15 overnight. Wind diminishing to southwest 10 Sunday morning then increasing to southwest 15 Sunday afternoon.

Scattered showers ending this evening with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 08 August 2026
Today Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less near noon Sunday then building to 0.5 to 1 Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 08 August 2026
Monday Wind light becoming west 15 knots in the afternoon.
Tuesday Wind northwest 15 knots diminishing to light.
Wednesday Wind light.

Stay connected

ATOM

List of Official Text Forecasts
Resources

Weather Conditions

Skip Image

Zoom-in to make a selection

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

Warnings (In effect)

Squall warning in effect

Southern Georgian Bay

Issued 05:50 AM EDT 08 August 2026 Squalls with wind gusts up to 40 knots and frequent lightning are expected or occurring in the area.

Thunderstorms are moving east across the region this morning. Squalls with wind gusts up to 40 knots and small hail are expected.

Vessels without lightning protection should make their way to shore immediately. Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately. Consider delaying or postponing travel in areas under the squall warning.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Strong wind warning in effect

Georgian Bay

Issued 03:00 AM EDT 08 August 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 3:00 AM EDT 8 August 2026 Today Tonight and Sunday At 3:00 a.m. EDT today quasi-stationary high 1023 mb located over
the East Coast of the U.S.

At 3:00 a.m. EDT today cold front located on a line
northeast-southwest over Whitefish Bay.
By 3:00 a.m. EDT Sunday cold front located on a line north-south
over Montréal.

At 3:00 a.m. EDT today ridge from high located on a line
northwest-southeast over southern Minnesota.
By 3:00 a.m. EDT Sunday ridge from high located on a line
north-south over Lake Huron.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

Weather shortcuts


How to use
  • Add to shortcuts
    • Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
    • Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
    • Click on the "Save" button to add the link to the list
    • Click on the "X" button to close the panel
  • Delete a link
    • Click on the "Organize shortcuts" button
    • Select the link to delete
    • Click on the "Delete" button to remove the link from the list
    • Click on the "Close" button to save the change
  • Move a link up/down the list
    • Click on the "Organize shortcuts" button
    • Click and hold the link and move to new location in the list
    • Click on the "Close" button to save the change
  • Rename a link
    • Click on the "Organize shortcuts" button
    • Select the link to rename
    • Click on the "Rename" button and change the link name
    • Click the enter or tab key
    • Click on the "Close" button to save the change
  • Keyboard navigation
    • Use the Tab key to move to a button or link
    • Use the Enter key to click on buttons or links
    • Organize shortcuts navigation
      • Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
      • Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
      • Use the Page Up key to move a selection up in the list.
      • Use the Page Down key to move a selection down in the list.
  • Restore default list

    Warning: Clicking on the button below will remove all your customized links.

Customized Weather shortcuts

Save your customized list as a bookmark.

Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.

Features

Colour-coded weather alerts

Learn more about weather alerting in Canada

Thunderstorm Outlooks

Find the Thunderstorm Outlook for your area.

Feedbackabout this web site
Date modified: