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
Bay Beach (Crystal) Unsafe to swim due to ecoli	Fort Erie	14°C / 57.2°F	August 25, 2026
Bernard Avenue Beach Open for swimming	Fort Erie	14°C / 57.2°F	August 25, 2026
Crescent Beach Open for swimming	Fort Erie	14°C / 57.2°F	August 25, 2026
Waverly Beach Unsafe to swim due to ecoli	Fort Erie	14.4°C / 57.92°F	August 25, 2026
Casablanca Beach Open for swimming	Grimsby	17°C / 62.6°F	August 25, 2026
Fifty Point Conservation Beach Open for swimming	Grimsby	17°C / 62.6°F	August 25, 2026
Nelles Beach Unsafe to swim due to safety	Grimsby		August 24, 2026
Charles Daley Park Open for swimming	Lincoln	18°C / 64.4°F	August 21, 2026
Queen's Royal Beach Open for swimming	Niagara-on-the-Lake	21°C / 69.8°F	August 26, 2026
Centennial Cedar Bay Beach Open for swimming	Port Colborne	16.5°C / 61.7°F	August 26, 2026
Nickel Beach Open for swimming	Port Colborne	17°C / 62.6°F	August 26, 2026
Sherkston Elco Open for swimming	Port Colborne	13°C / 55.4°F	August 25, 2026
Sherkston Quarry Beach Open for swimming	Port Colborne	22°C / 71.6°F	August 25, 2026
Sherkston Wyldewood Beach Unsafe to swim due to ecoli	Port Colborne	13°C / 55.4°F	August 25, 2026
Lakeside Beach Unsafe to swim due to ecoli	St. Catharines	21°C / 69.8°F	August 25, 2026
Sunset Beach Unsafe to swim due to ecoli	St. Catharines	16°C / 60.8°F	August 25, 2026
Long Beach Open for swimming	Wainfleet	17°C / 62.6°F	August 26, 2026
Reebs Bay Open for swimming	Wainfleet	22°C / 71.6°F	August 21, 2026
Wainfleet Lake Erie Public Access Beach Open for swimming	Wainfleet	17.5°C / 63.5°F	August 26, 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