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
Posted Bay Beach (Crystal)
Unsafe to swim due to ecoli 		Fort Erie 23.2°C   /  73.76°F
 September 4, 2026
Open Bernard Avenue Beach
Open for swimming 		Fort Erie 14°C   /  57.2°F
 August 25, 2026
Open Crescent Beach
Open for swimming 		Fort Erie 14°C   /  57.2°F
 August 25, 2026
Posted Waverly Beach
Unsafe to swim due to ecoli 		Fort Erie 14.4°C   /  57.92°F
 August 25, 2026
Open Casablanca Beach
Open for swimming 		Grimsby 16°C   /  60.8°F
 August 28, 2026
Open Fifty Point Conservation Beach
Open for swimming 		Grimsby 17°C   /  62.6°F
 August 25, 2026
Posted Nelles Beach
Unsafe to swim due to safety 		Grimsby August 24, 2026
Open Charles Daley Park
Open for swimming 		Lincoln 19°C   /  66.2°F
 August 28, 2026
Open Queen's Royal Beach
Open for swimming 		Niagara-on-the-Lake 23°C   /  73.4°F
 August 28, 2026
Posted Centennial Cedar Bay Beach
Unsafe to swim due to ecoli 		Port Colborne 21°C   /  69.8°F
 August 28, 2026
Posted Nickel Beach
Unsafe to swim due to ecoli 		Port Colborne 23.3°C   /  73.94°F
 September 4, 2026
Posted Sherkston Elco
Unsafe to swim due to safety 		Port Colborne August 31, 2026
Posted Sherkston Quarry Beach
Unsafe to swim due to ecoli 		Port Colborne 23°C   /  73.4°F
 August 27, 2026
Open Sherkston Wyldewood Beach
Open for swimming 		Port Colborne 22.9°C   /  73.22°F
 September 4, 2026
Open Lakeside Beach
Open for swimming 		St. Catharines 18°C   /  64.4°F
 August 28, 2026
Open Sunset Beach
Open for swimming 		St. Catharines 18°C   /  64.4°F
 August 28, 2026
Posted Long Beach
Unsafe to swim due to ecoli 		Wainfleet 21°C   /  69.8°F
 August 28, 2026
Posted Reebs Bay
Unsafe to swim due to ecoli 		Wainfleet 21°C   /  69.8°F
 August 28, 2026
Posted Wainfleet Lake Erie Public Access Beach
Unsafe to swim due to ecoli 		Wainfleet 21°C   /  69.8°F
 August 28, 2026

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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