The cleanest beaches for swimming in Toronto is essential knowledge for anyone hoping to take a dip to cool off on sticky summer days in the city.

While the summer may be winding down, there are still plenty of sunny days on the horizon that you can spend in the sun on one of Toronto's many beaches — but you'll want to keep track of which ones have the cleanest water if you're hoping to take a plunge.

The City of Toronto monitors water quality at all ten of the city's swimmable beaches every 24 hours, so you can have the most up-to-date news on the best spots for a swim.

At the time of publication, there are eight beaches in the city that have gotten the go-ahead for swimming, while one is a definite no-go.

If you have an island day planned, you'll be good to go for a dip at Hanlan's Point, Gibraltar Point and Wards Island Beaches, but be wary when it comes to Centre Island Beach — there's currently no data available on the water quality, so steer clear if you're concerned.

When it comes to mainland beaches, Sunnyside, Cherry, Woodbine, Kew Balmy and Bluffer's Beaches have all gotten the green flag for safe swimming.

Water quality advisory for Aug 12.

Marie Curtis Beach is the only beach in the city that's been flagged unsafe for swimming, noting that E. coli levels found in the water are higher than the city's established safe level.

Conditions at all beaches change quickly, and can be impacted by all sorts of factors like rain levels and the temperature, so be sure to keep an eye on the City of Toronto's water quality report for the most up-to-date information.