Open Water Data

St. Marys Quarry

Town of St. Marys, Ontario, Canada

  • E. coli
    PASS 10mpn (5 samples) Mon, Jul 8, 2024
  • Water Quality Status
    Passed tests Mon, Jul 8, 2024
  • Water Temperature
    21°C / 69.8°F (water) Mon, Jul 8, 2024
  • Air Temperature
    C / 44.6°F (air) Fri, May 29, 2026 at 7:00am
  • Wind
    9 - 18.7km/h WNW 298° Fri, May 29, 2026 at 7:00am
  • Fog
    Fog Fri, May 29, 2026 at 7:00am
  • Precipitation
    0mm Fri, May 29, 2026 at 7:00am
  • Air Visibility
    24km Fri, May 29, 2026 at 7:00am
  • Humidity
    100% Fri, May 29, 2026 at 7:00am

St. Marys Quarry was formerly a limestone Quarry that closed in 1920 and in the mid-1940s it was converted into a public swimming area! Since, it has become one of the more frequented swimming spots in the area to visit on hot summer days!

The description above was copied from or heavily based on Swim Guide, with permission.

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