Illinois Sea Water Temperature
Compare sea surface temperatures across 34 top coastal destinations in Illinois. Check below for live marine observations, wave conditions, and monthly averages.
Beaches & Swimming Spots in Illinois— page 2 of 2
Montrose Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
Munson Beach
A cool beach on the James Bay, warmest around August at about 23.1°C.
North Avenue Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
Oak Street Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
Rainbow Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
Rosemont Avenue Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
South Boulevard Beach
A cool beach on the James Bay, warmest around August at about 22.6°C.
South Shore Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.
Sunrise Beach
A cool beach on the James Bay, warmest around August at about 22°C.
Thorndale Avenue Beach
A cool beach on the James Bay, warmest around August at about 22.8°C.