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
24 mph

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.