You need to sign in or sign up before continuing.

St Lawrence River : St Lawrence River

Gananoque, Ontario, Canada

Observed by
Brett Christensen
  • Observed on: Fri, 15 Aug 2025 16:15:00 -0400
  • Lat: 44.3208203
  • Lng: -76.1746073
pH (0-14) What's this? 8.4
Secchi depth m What's this? bottom visible
Chlorine ppm What's this? 0.5
Hardness mg/L What's this? 100.0
Alkalinity mg/L What's this? 80.0
Water depth m What's this? 1.37
Conductivity μS/cm What's this? 315.0
Air temperature °C What's this? 29.0
Water temperature °C What's this? 26.0

Weather

Current weather What's this?
  • sunny
28 degrees feels like 30, winds 11 kmh from the south. Pressure 102 kPa (dropping) Humidity 35% Visibility 21 km.
Weather in previous 24 hours What's this?
  • sunny
  • windy

Latest photos