Ontario Sea Water Temperature
Compare sea surface temperatures across 59 top coastal destinations in Ontario. Check below for live marine observations, wave conditions, and monthly averages.
Beaches & Swimming Spots in Ontario— page 3 of 3
Sand Beach
A cool beach on the James Bay, warmest around August at about 19°C.
Sandpoint Beach
A cool beach on the James Bay, warmest around August at about 23°C.
Straubs Beach
A cool beach on the James Bay, warmest around August at about 20.4°C.
Sunnyside Beach
A cool beach on the James Bay, warmest around August at about 21.1°C.
Sunset Beach
A cool beach on the James Bay, warmest around August at about 18.6°C.
The Old Beach
A cool beach on the James Bay, warmest around August at about 19.7°C.
Wababikok
A cool beach on the James Bay, warmest around August at about 19°C.
Wards Island Beach
A cool beach on the James Bay, warmest around August at about 21.1°C.
West Beach
A cool beach on the James Bay, warmest around August at about 24.2°C.
White Sands
A cool beach on the James Bay, warmest around August at about 24.3°C.
Woodbine Beach
A cool beach on the James Bay, warmest around August at about 21.1°C.