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Map of Big Bay sloop Wreck
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IntermediateBoat entry

Big Bay sloop Wreck

Wisconsin, United States
Site is listed on the National Register of Historic Places (ref. 08001327, listed Jan 14, 2009) and lies within a designated marine protected area8 m (25 ft) depthBoat entry

Boat dive — see Entry & access.

Big Bay sloop Wreck at a glance

Big Bay sloop Wreck is an intermediate boat dive site in Wisconsin, United States with depths of up to 7.6 m (25 ft). Typically most favorable Jul · from 3 years of archive data. Check the latest conditions and entry details before you go.

Favorable window now· until 18:00 · sunset 17:58

Wind forecast for this hour · 17:00 · run 4 h ago
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Tap a factor for its source and model point

Site hazards: Site is listed on the National Register of Historic Places (ref. 08001327, listed Jan 14, 2009) and lies within a designated marine protected area

Read the full hazards ↓

Dive windows this week

Lightest wind: Fri
Sun13:00–18:00 favorable

6 kn wind (6 kn wind)

Mon8:00–18:00 favorable

9 kn wind (9 kn wind)

Tue8:00–9:00 favorable, 9:00–18:00 moderate

13 kn wind (13 kn wind)

Wed13:00–18:00 moderate

13 kn wind (13 kn wind)

Thu8:00–18:00 favorable

10 kn wind (10 kn wind)

Fri8:00–18:00 favorable

3 kn wind (3 kn wind)

Sat8:00–18:00 favorable

5 kn wind (5 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 7:03 · Sunrise 7:35 · Sunset 17:58 · some windows run past sunset

Source: Open-Meteo wind · updated 25 Oct, 12:19 GMT-5

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Big Bay sloop Wreck

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?

Best months, historically

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

  1. January, 18% of days have historically been favorable, wind has typically been 19 knots
  2. February, 15% of days have historically been favorable, wind has typically been 19 knots
  3. March, 20% of days have historically been favorable, wind has typically been 19 knots
  4. April, 22% of days have historically been favorable, wind has typically been 19 knots
  5. May, 34% of days have historically been favorable, wind has typically been 16 knots
  6. June, 46% of days have historically been favorable, wind has typically been 15 knots
  7. July, 66% of days have historically been favorable, wind has typically been 13 knots, historically most favorable
  8. August, 51% of days have historically been favorable, wind has typically been 14 knots
  9. September, 40% of days have historically been favorable, wind has typically been 15 knots
  10. October, 20% of days have historically been favorable, wind has typically been 18 knots
  11. November, 16% of days have historically been favorable, wind has typically been 20 knots
  12. December, 15% of days have historically been favorable, wind has typically been 20 knots

July 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 recorded at this site

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

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

Big Bay sloop Wreck is a wreck dive in United States. The site is reached by boat. Rated intermediate based on available data.

wreck

Site is listed on the National Register of Historic Places (ref. 08001327, listed Jan 14, 2009) and lies within a designated marine protected area — a non-disturbance site; removing or disturbing artifacts is prohibited.

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