Open Water Data

  • Water Temperature
    19°C / 66.2°F (water) Sat, Oct 4, 2025 at 9:27am
  • Air Temperature
    -0.8°C / 30.6°F (air) Sun, Feb 15, 2026 at 10:00am
  • Wind
    8.3 - 11.4km/h SE 137° Sun, Feb 15, 2026 at 10:00am
  • Wave
    0.2m, 2.3s, SSE 152° Sun, Feb 15, 2026 at 7:00am
  • Freezing fog
    Freezing fog Sun, Feb 15, 2026 at 10:00am
  • Precipitation
    0mm Sun, Feb 15, 2026 at 10:00am
  • Air Visibility
    10km Sun, Feb 15, 2026 at 10:00am
  • Humidity
    83% Sun, Feb 15, 2026 at 10:00am

Lakeside Park is situated along the shore of Lake Ontario in downtown Oakville.  The park is the site of two historic buildings – The Old Post Office and the Thomas House – and is across the street from the Oakville Museum at Erchless Estate.

The park is open every day from 7am - 10pm, and the LOST Swim Group starts open water swims from this beach every Saturday morning at 8am from early June until late September.

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