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Brennecke's Ledge

Hawaii, United States
AOW suggested18–30 m (59–98 ft) depthBoat entry3mm wetsuit typical

Boat dive — see Entry & access.

Brennecke's Ledge at a glance

Brennecke's Ledge is an advanced boat dive site in Hawaii, United States with depths of 18–30 m (59–98 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Nudibranch, Frogfish, and Hawaiian green sea turtle. Recent reports put the water around 26°C (80°F). Check the latest conditions and entry details before you go.

Favorable window now· until 19:00 · sunset 18:05

Forecast for this hour · 16:00 · run 9 h ago
1.2 m (3.9 ft)waves — about a meter expected (waves — about four feet expected)

Tap a factor for its source and model point · Forecast 26°C · seasonal avg 27°C ( · Forecast 80°F · seasonal avg 81°F)

Site hazards: Depth, unpredictable current, drift, overhangs, boat traffic, nitrogen loading, and surge around ledge structure.

Read the full hazards ↓

Dive windows this week

Sun8:00–19:00 favorable

1.2 m waves · 9 kn wind (3.9 ft waves · 9 kn wind)

Mon7:00–19:00 favorable

1.2 m waves · 6 kn wind (3.9 ft waves · 6 kn wind)

Tue7:00–19:00 favorable

1.3 m waves · 6 kn wind (4.1 ft waves · 6 kn wind)

Wed7:00–19:00 favorable

1.3 m waves · 8 kn wind (4.2 ft waves · 8 kn wind)

Thu7:00–12:00 favorable, 12:00–19:00 moderate

1.4 m waves · 11 kn wind (4.6 ft waves · 11 kn wind)

Fri7:00–19:00 favorable

1.6 m waves · 9 kn wind (5.1 ft waves · 9 kn wind)

Sat7:00–19:00 favorable

1.5 m waves · 3 kn wind (4.9 ft waves · 3 kn wind)

Favorable windowModerate window— no window

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

First light 6:15 · Sunrise 6:38 · Sunset 18:05 · some windows run past sunset

Source: Open-Meteo marine · model point 6.6 km from site · updated 25 Oct, 07:20 GMT-10

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Brennecke's Ledge

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: South-shore Kauai conditions are best in calm surf and manageable trade-wind/current conditions; abort for high surf, poor visibility, or strong current.

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, 35% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 1.9 m (6.1 ft), wind has typically been 7 knots
  2. February, 36% of days have historically been favorable, water has typically been 24°C (76°F), waves have typically been 1.9 m (6.1 ft), wind has typically been 7 knots
  3. March, 49% of days have historically been favorable, water has typically been 24°C (76°F), waves have typically been 1.7 m (5.6 ft), wind has typically been 7 knots
  4. April, 61% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 1.7 m (5.4 ft), wind has typically been 7 knots
  5. May, 70% of days have historically been favorable, water has typically been 26°C (78°F), waves have typically been 1.6 m (5.2 ft), wind has typically been 7 knots
  6. June, 70% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 1.5 m (5.0 ft), wind has typically been 7 knots
  7. July, 80% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.5 m (4.9 ft), wind has typically been 7 knots
  8. August, 75% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.6 m (5.1 ft), wind has typically been 7 knots
  9. September, 91% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.4 m (4.6 ft), wind has typically been 6 knots, historically most favorable
  10. October, 83% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.4 m (4.5 ft), wind has typically been 6 knots
  11. November, 52% of days have historically been favorable, water has typically been 26°C (80°F), waves have typically been 1.7 m (5.6 ft), wind has typically been 6 knots
  12. December, 46% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 1.7 m (5.7 ft), wind has typically been 6 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

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

Brennecke's Ledge is a deeper south-shore Kauai boat dive built around a ledge/overhang system near the Poipu/Brennecke area. Operators describe it as rewarding but less frequently visited because distance and current can make it more demanding. It is best for experienced divers comfortable with drift-like movement and 60-100 ft profiles.

boatreefwall

Depth, unpredictable current, drift, overhangs, boat traffic, nitrogen loading, and surge around ledge structure.

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