Lake Ontario Water Temperature

(Today) Feb 2024

2.7°C / 36.8°F

The water will feel freezing / baltic. You would have to be insane or getting paid to want to get in water this cold! If you do make sure you are wearing a top end drysuit and all the accessories.

Current weather

6°C / 42°F
(overcast clouds)
Partly cloudy
Wind
24 mph
Humidity
68%

Water temps is based on average surface temperatures measured throughout Lake Ontario.

Map showing Lake Ontario locations. Click on pins to view water temperature.

16 locations listed in Lake Ontario.