Beach Advisory- End of Beach Season Check back May 2023

Beaches Monitored from Memorial Day through Labor Day

From May to September, the Health Department's Lakes Management Unit samples Lake Michigan beaches 4 days a week. Beaches on inland lakes are tested biweekly (2 times per month). The water samples are tested for E coli bacteria, which are found in the intestines of almost all warm-blooded animals. While not all strains of E coli are the same, certain strains can make humans sick if ingested in high enough concentrations.
IBSP North3 (1)
Inland Beaches
Lake Michigan
Monitoring Schedule


If water samples come back high for E coli (235 E coli/100 ml), the management body for the bathing beach is notified and a sign is posted indicating the beach closure. Additionally, since rain events tend to lead to elevated bacteria levels in the water column, the LMU advises that persons avoid swimming after a large rain event.

Note: Per the Illinois Swimming Code, there is no swimming at dog beaches.
Current and Historic Beach Data

Beach Safety:  Check for the most recent beach hazards, including high waves:

Inland Beach Advisories

Low Bacteria Level
No Advisory

All other inland beaches not listed below are currently open

Elevated Bacteria Level
Caution swimming advisory
High Bacteria Level
No swimming is advised

Additional Beach Closings

Updated Tuesday September 6, 2022

Lake Michigan Beach Advisories

Bacteria Level Key

No advisory
Caution swimming advisory
No swimming is advised
Lake Michigan BeachesStatus
 Forest Park Beachgreen
Illinois Beach State Park North Beach 
Illinois Beach State Park Resort Beach
Illinois Beach State Park South Beachgreen
Lake Bluff Dog Beachgreen
Lake Bluff Sunrise Beachgreen
Moraine Dog Beach - closed for repairs red
North Point Marina Beach
Nunn Beach (Great Lakes), Friday - Sunday onlygreen
Park Avenue Boating Facilitygreen
Rosewood Beachgreen
Waukegan North Beachgreen
Waukegan South Beachgreen

Updated Tuesday September 6, 2022