Beach Water Testing in Niagara

Check before swimming

We test the water of beaches in Niagara every year during the summer. Make sure the water is safe before you swim.

Beach water testing results

Beach Municipality Water Temperature Updated
Open Bay Beach (Crystal)
Open for swimming
Fort Erie 23°C   /  73.4°F
July 10, 2025
Open Bernard Avenue Beach
Open for swimming
Fort Erie 23.5°C   /  74.3°F
July 8, 2025
Posted Crescent Beach
Unsafe to swim due to ecoli
Fort Erie 24°C   /  75.2°F
July 8, 2025
Posted Waverly Beach
Unsafe to swim due to ecoli
Fort Erie 24°C   /  75.2°F
July 8, 2025
Open Casablanca Beach
Open for swimming
Grimsby 19.4°C   /  66.92°F
July 8, 2025
Open Fifty Point Conservation Beach
Open for swimming
Grimsby 18.7°C   /  65.66°F
July 8, 2025
Open Nelles Beach
Open for swimming
Grimsby 19°C   /  66.2°F
July 8, 2025
Open Charles Daley Park
Open for swimming
Lincoln 21.8°C   /  71.24°F
July 8, 2025
Posted Queen's Royal Beach
Unsafe to swim due to ecoli
Niagara-on-the-Lake 24°C   /  75.2°F
July 9, 2025
Open Centennial Cedar Bay Beach
Open for swimming
Port Colborne 25°C   /  77°F
July 9, 2025
Open Nickel Beach
Open for swimming
Port Colborne 24.5°C   /  76.1°F
July 9, 2025
Open Sherkston Elco
Open for swimming
Port Colborne 23°C   /  73.4°F
July 10, 2025
Open Sherkston Quarry Beach
Open for swimming
Port Colborne 27°C   /  80.6°F
July 10, 2025
Open Sherkston Wyldewood Beach
Open for swimming
Port Colborne 23.5°C   /  74.3°F
July 10, 2025
Open Lakeside Beach
Open for swimming
St. Catharines 22.5°C   /  72.5°F
July 8, 2025
Open Sunset Beach
Open for swimming
St. Catharines 22.2°C   /  71.96°F
July 8, 2025
Open Long Beach
Open for swimming
Wainfleet 23.5°C   /  74.3°F
July 9, 2025
Open Reebs Bay
Open for swimming
Wainfleet 23°C   /  73.4°F
July 4, 2025
Open Wainfleet Lake Erie Public Access Beach
Open for swimming
Wainfleet 23.5°C   /  74.3°F
July 9, 2025

Beach water testing

Every year between May (Victoria Day) and September (Labour Day), we test over 19 public beaches for levels of E. Coli bacteria. Beach water testing results may not always be accurate as conditions can change due to:

  • Large number of swimmers
  • Wind and high waves
  • Large number of birds
  • Recent heavy rainfall
  • Cloudy water

Test results are intended as general guidance. Residents are encouraged to consider the current weather before deciding to enter the water.

Posted / closed beaches

Beaches are posted unsafe / closed when water tests show unacceptable levels of E. Coli bacteria.

The beach might also be unsafe because of floating debris, oil, excessive weed growth, bad odours and general turbidity.

Swimming in these waters could cause infections of the ear, eye, nose, throat and skin, as well as cause diarrhea if the water is ingested.

Weather Forecast: Lake Ontario · Lake Erie

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