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	10°C / 50°F	May 22, 2025
Bernard Avenue Beach Open for swimming	Fort Erie		Has not been sampled yet
Crescent Beach Open for swimming	Fort Erie		Has not been sampled yet
Waverly Beach Open for swimming	Fort Erie		Has not been sampled yet
Casablanca Beach Unsafe to swim due to safety	Grimsby	8°C / 46.4°F	May 23, 2025
Fifty Point Conservation Beach Open for swimming	Grimsby		Has not been sampled yet
Nelles Beach Open for swimming	Grimsby		Has not been sampled yet
Charles Daley Park Open for swimming	Lincoln	7.4°C / 45.32°F	May 23, 2025
Queen's Royal Beach Unsafe to swim due to ecoli	Niagara-on-the-Lake	13°C / 55.4°F	May 23, 2025
Centennial Cedar Bay Beach Open for swimming	Port Colborne	11.9°C / 53.42°F	May 23, 2025
Nickel Beach Open for swimming	Port Colborne	10.9°C / 51.62°F	May 23, 2025
Sherkston Elco Open for swimming	Port Colborne	10°C / 50°F	May 22, 2025
Sherkston Quarry Beach Open for swimming	Port Colborne	10.4°C / 50.72°F	May 22, 2025
Sherkston Wyldewood Beach Open for swimming	Port Colborne	10°C / 50°F	May 22, 2025
Lakeside Beach Unsafe to swim due to ecoli	St. Catharines	7.4°C / 45.32°F	May 23, 2025
Sunset Beach Unsafe to swim due to ecoli	St. Catharines	7.4°C / 45.32°F	May 23, 2025
Long Beach Open for swimming	Wainfleet	11.5°C / 52.7°F	May 23, 2025
Reebs Bay Open for swimming	Wainfleet	11.1°C / 51.98°F	May 23, 2025
Wainfleet Lake Erie Public Access Beach Unsafe to swim due to ecoli	Wainfleet	11.5°C / 52.7°F	May 23, 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