Average water temperature in Longueuil
The mean water temperature over the year in Longueuil (Quebec), Canada.
- The months August and September have a pleasant water temperature.
- On average, August has the warmest water temperature with 21°C.
- On average, March has the coldest water temperature with 3°C.
Forecast for Longueuil
broken clouds and slight rain
partly cloudy and rain
almost clear and no rain