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Seasonal ranking

Warmest sea temperature in Canada in September

Where the sea is warmest across Canada during September, ranked by long-term monthly average water temperature. Wasaga Beach (Ontario, Canada) tops the list at around 19°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Wasaga Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  2. 2
    Sandbanks Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  3. 3
    Sauble Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  4. 4
    Grand Bend Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  5. 5
    Port Stanley Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  6. 6
    Long Point Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  7. 7
    Woodbine Beach
    Ontario · Canada · Great Lakes
    Mild — fine for a swim, cool at first
    19°C
    September average
  8. 8
    Sauble Beach
    Ontario · Canada · Lake Huron
    Mild — fine for a swim, cool at first
    19°C
    September average
  9. 9
    Cobourg Beach
    Ontario · Canada · Lake Ontario
    Mild — fine for a swim, cool at first
    19°C
    September average
  10. 10
    Presqu'ile Beach
    Ontario · Canada · Lake Ontario
    Mild — fine for a swim, cool at first
    19°C
    September average
  11. 11
    Sandbanks Beach
    Ontario · Canada · Lake Ontario
    Mild — fine for a swim, cool at first
    19°C
    September average
  12. 12
    Cavendish Beach
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  13. 13
    Brackley Beach
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  14. 14
    Stanhope Beach
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  15. 15
    Basin Head Beach
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  16. 16
    Greenwich Beach
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  17. 17
    Thunder Cove
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  18. 18
    Panmure Island
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  19. 19
    Argyle Shore
    Prince Edward Island · Canada · Gulf of St Lawrence
    Cool — shorty wetsuit recommended
    17°C
    September average
  20. 20
    Basin Head Beach
    Prince Edward Island · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    17°C
    September average
  21. 21
    Lawrencetown Beach
    Nova Scotia · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    16°C
    September average
  22. 22
    Martinique Beach
    Nova Scotia · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    16°C
    September average
  23. 23
    Rissers Beach
    Nova Scotia · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    16°C
    September average
  24. 24
    Crystal Crescent
    Nova Scotia · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    16°C
    September average
  25. 25
    Hirtles Beach
    Nova Scotia · Canada · Atlantic Ocean
    Cool — shorty wetsuit recommended
    16°C
    September average

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Canada in September — frequently asked questions

Where is the sea warmest in Canada in September?
Wasaga Beach in Canada has the warmest sea in Canada in September, averaging about 19.0 °C. Sandbanks Beach (19.0 °C) and Sauble Beach follow close behind.
How many beaches in Canada are warm enough to swim in September?
None of the top 25 ranked beaches in Canada reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
How are these September sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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