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Map of Lumberman Wreck
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IntermediateBoat entry

Lumberman Wreck

Wisconsin, United States
Open Water suggestedCold water below the thermocline18–20 m (58–65 ft) depthBoat entry

Boat dive — see Entry & access.

Lumberman Wreck at a glance

Lumberman Wreck is an intermediate boat dive site in Wisconsin, United States with depths of 17.7–19.8 m (58–65 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Round goby and Burbot. Check the latest conditions and entry details before you go.

Moderate window now· until 16:00

Wind forecast for this hour · 8:00 · run 8 h ago
—

Tap a factor for its source and model point

Site hazards: Cold water below the thermocline · Variable visibility · Open-lake boat exposure several miles offshore

All 3 hazards ↓

Dive windows this week

Mon8:00–16:00 moderate, 17:00–18:00 moderate

17 kn wind (17 kn wind)

Tue8:00–12:00 moderate, 12:00–18:00 favorable

13 kn wind (13 kn wind)

Wed8:00–18:00 favorable

7 kn wind (7 kn wind)

Thu9:00–11:00 moderate, 11:00–18:00 favorable

8 kn wind (8 kn wind)

Fri8:00–18:00 favorable

8 kn wind (8 kn wind)

Sat8:00–18:00 favorable

7 kn wind (7 kn wind)

Sun8:00–18:00 favorable

6 kn wind (6 kn wind)

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wind forecasts. Numbers under each bar are daylight averages.

First light 6:49 · Sunrise 7:18 · Sunset 17:51 · some windows run past sunset

Source: Open-Meteo wind · updated 26 Oct, 00:26 GMT-5

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Lumberman Wreck

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Best time: June-September

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 83% of days have historically been favorable, wind has typically been 11 knots
  2. February, 71% of days have historically been favorable, wind has typically been 12 knots
  3. March, 66% of days have historically been favorable, wind has typically been 12 knots
  4. April, 63% of days have historically been favorable, wind has typically been 13 knots
  5. May, 80% of days have historically been favorable, wind has typically been 11 knots
  6. June, 79% of days have historically been favorable, wind has typically been 11 knots
  7. July, 91% of days have historically been favorable, wind has typically been 9 knots
  8. August, 91% of days have historically been favorable, wind has typically been 10 knots
  9. September, 93% of days have historically been favorable, wind has typically been 9 knots, historically most favorable
  10. October, 81% of days have historically been favorable, wind has typically been 11 knots
  11. November, 81% of days have historically been favorable, wind has typically been 11 knots
  12. December, 83% of days have historically been favorable, wind has typically been 11 knots

September has typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated June 2026

Site details

The three-masted lumber schooner Lumberman (1862) capsized in a sudden squall on April 6, 1893, off Oak Creek south of Milwaukee, sinking in about 65 ft of water. Rediscovered in 1983, the mostly intact hull at 58-65 ft has become southern Lake Michigan's most popular wreck dive, marked by a WHS mooring buoy and served by Milwaukee charters.

boatwreck

Cold water below the thermocline

Variable visibility

Open-lake boat exposure several miles offshore

Reviews

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