Wisconsin Beach Conditions: Swim Risk and Surf

The National Weather Service Swim Risk for each of the 9 Wisconsin forecast zones is reproduced above exactly as the issuing office wrote it, with the issuance time attached, so you can read the official product for the specific zone you are standing in. No forecast can tell you the water is safe: swim near a lifeguard, read the flag flying on that beach, and treat piers and jetties as permanently dangerous regardless of the category.

Low Swim Risk means large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. That is the official definition, quoted from NWS Instruction 10-320 (June 5, 2025), section 2.7.1. The second half of that sentence is the part people skip: structural current beside a pier or breakwall does not need a windy day.

3 National Weather Service forecast offices covers the Wisconsin coast: DLH, GRB, MKX. Between them they issue 9 surf zone forecast zones, including Carlton/Southern St. Louis-Douglas, Door, Kenosha, Kewaunee. Each office writes its own product, which is why two adjacent stretches of the same coast can carry different categories on the same afternoon.

NWS Instruction 10-320 says the Surf Zone Forecast should be issued at least once per day on a seasonal basis, and caps its expiration at 24 hours from issuance. Some offices reissue more often than that; NWS Milwaukee, for example, writes its beach forecast twice a day. This page shows the issuance time on every zone and flags any product older than 12 hours, because a forecast written this morning is a different thing from one written yesterday.

A Rip Current Statement carries rip current information only, and NWS issues it to highlight a moderate or high rip current threat. A Beach Hazards Statement covers everything else, including dangerous currents, unusually cold water, lightning along the shoreline, and unusual surf that does not meet advisory criteria. NWS Instruction 10-320 says Gulf and southern Atlantic offices primarily use the Rip Current Statement, while West Coast and Great Lakes offices primarily use the Beach Hazards Statement. A High Surf Advisory is a separate, criteria based product for breaking wave action that threatens life and property.

Current NWS guidance leads with relaxing: a rip current does not pull you under, it carries you out. Do not try to swim directly into shore. Swim along the shoreline until you escape the current's pull, then swim at an angle toward the beach. If you feel you cannot reach shore, relax, face the shore, and call or wave for help. If you are on the beach and someone else is caught, alert the lifeguard or call 911, throw them something that floats, and do not swim out to them: NWS notes that many would-be rescuers have drowned trying to help.

People are generally in the water in Wisconsin from around May 24 to September 10, with the busiest stretch June 28 to August 25. Wisconsin water is genuinely cold into late June, peaks in the lower 70s in late July and August, and the guarded window is short: Racine opened North Beach on May 30 in 2026 and most other Wisconsin Great Lakes beaches have no guards at all.

Coverage is city by city rather than statewide. Racine staffs lifeguards at North Beach, which opened for the 2026 season on May 30 with guards on duty daily from 10 am to 6 pm, and Racine sent its guards through open water training run by the Great Lakes Surf Rescue Project. Milwaukee County has leaned on a red, yellow and green flag system at its lakefront beaches rather than guaranteed lifeguard coverage, and Door County plus the state park beaches at Kohler-Andrae, Whitefish Dunes and Point Beach are not guarded.