Beach closures and advisories are nothing unusual in Michigan during the summer. What’s the Difference Between a Michigan Beach Closure and an Advisory? Which Michigan Beaches Are Closed or Under Advisories Right Now? 9 Michigan Beaches Closed or Under Advisories August 7-9 These nine Michigan beaches are currently closed or under advisories for August 7-9. Check out the Top 10 Michigan beaches for 2026, plus the contenders that fell just short of the list.