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) Open for swimming	Fort Erie	25°C / 77°F	July 31, 2025
Bernard Avenue Beach Open for swimming	Fort Erie	24.5°C / 76.1°F	July 29, 2025
Crescent Beach Open for swimming	Fort Erie	25°C / 77°F	July 29, 2025
Waverly Beach Unsafe to swim due to algae	Fort Erie		July 28, 2025
Casablanca Beach Unsafe to swim due to ecoli	Grimsby	23.4°C / 74.12°F	August 1, 2025
Fifty Point Conservation Beach Open for swimming	Grimsby	23°C / 73.4°F	July 29, 2025
Nelles Beach Open for swimming	Grimsby	24.5°C / 76.1°F	July 29, 2025
Charles Daley Park Open for swimming	Lincoln	24.4°C / 75.92°F	August 1, 2025
Queen's Royal Beach Unsafe to swim due to ecoli	Niagara-on-the-Lake	22°C / 71.6°F	August 1, 2025
Centennial Cedar Bay Beach Open for swimming	Port Colborne	23.5°C / 74.3°F	August 1, 2025
Nickel Beach Unsafe to swim due to ecoli	Port Colborne	23°C / 73.4°F	August 1, 2025
Sherkston Elco Open for swimming	Port Colborne	26°C / 78.8°F	July 31, 2025
Sherkston Quarry Beach Open for swimming	Port Colborne	27°C / 80.6°F	July 31, 2025
Sherkston Wyldewood Beach Unsafe to swim due to ecoli	Port Colborne	26°C / 78.8°F	July 31, 2025
Lakeside Beach Open for swimming	St. Catharines	23°C / 73.4°F	August 1, 2025
Sunset Beach Unsafe to swim due to ecoli	St. Catharines	22.9°C / 73.22°F	August 1, 2025
Long Beach Open for swimming	Wainfleet	21°C / 69.8°F	August 1, 2025
Reebs Bay Open for swimming	Wainfleet	21°C / 69.8°F	August 1, 2025
Wainfleet Lake Erie Public Access Beach Open for swimming	Wainfleet	21°C / 69.8°F	August 1, 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