TORONTO, ONTARIO · CANADA · NORTHWESTERN LAKE ONTARIO

Toronto.

The city meets the lake.

Toronto waterfront weather, offshore Lake Ontario conditions, seven-day forecasts and resources for the harbour, islands and shoreline.

Check conditions ↓ Explore Toronto ↓

THE SHORE AT A GLANCE

Toronto-area conditions

Weather-model estimates for downtown Toronto and offshore marine-model estimates south of the waterfront, not live measurements inside Toronto Harbour.

For official marine warnings, check Environment Canada marine warnings ↗

AIR TEMPERATURE

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WIND

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WAVE HEIGHT

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WATER TEMPERATURE

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Offshore modeled waves do not represent sheltered Toronto Harbour or the Islands. Marine temperature is shown only when the model provides it. Check official Canadian warnings before boating.

THE WEEK AHEAD

7-day Toronto forecast

Open-Meteo land forecast, not an official marine forecast.

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Environment Canada Toronto forecast ↗

WATCH THE SKY

Toronto and Lake Ontario radar

Open / close weather radar

KNOW THE SOURCE

Buoys & nearby reporting

Canadian offshore buoy observations can be seasonal. Check each station’s last reported timestamp; these are not Toronto Harbour readings.

OFFSHORE · WESTERN LAKE ONTARIO

45159 · Northwest Lake Ontario

Regional offshore buoy near Ajax, east of Toronto. Check current reporting and available wave or water-temperature sensors.

NOAA / Canadian buoy 45159 ↗

OFFSHORE · WESTERN LAKE ONTARIO

45139 · Western Lake Ontario

Regional Canadian buoy near Grimsby, across the lake from Toronto. Offshore readings are not harbour conditions.

NOAA / Canadian buoy 45139 ↗

OFFICIAL · CANADIAN FORECAST

Lake Ontario marine forecast

Environment and Climate Change Canada’s marine forecast and warnings for Lake Ontario.

Canadian marine forecasts ↗

BEFORE YOU HEAD OUT

Plan for the open lake.

MARINE WEATHER & SAFETY

Canadian marine warnings

Check official winds, waves, watches and warnings before leaving sheltered harbour waters.

Environment Canada marine weather ↗

BOATING & ACCESS

Toronto waterfront & ferries

Check official information about Toronto Island ferry services, schedules and access.

City of Toronto ferry information ↗

A LITTLE LOCAL KNOW-HOW

Around Toronto

01 / COMMUNITY

Toronto waterfront

Explore the city waterfront, public spaces and shoreline communities.

Waterfront Toronto ↗

02 / FISHING & BOATING

Toronto Harbour boating

Find local waterfront and harbour information for boaters and visitors.

PortsToronto ↗

03 / NATURE & BIRDS

Toronto birdwatching

Discover local birding observations and hotspots in Toronto, including the lakefront and islands.

Toronto sightings on eBird ↗

THE BIG PICTURE

Explore Lake Ontario.

Find more shoreline destinations and lakewide conditions.

Return to Lake Ontario Dashboard ↗