Skip to content
Map of Shelly Beach (Cabbage Tree Bay), Manly
Add the first photo

Shelly Beach (Cabbage Tree Bay), Manly

New South Wales, AustraliaDirections
5mm wetsuit typical

Shelly Beach (Cabbage Tree Bay), Manly at a glance

Shelly Beach (Cabbage Tree Bay), Manly is a dive site in New South Wales, Australia. Typically most favorable Aug · from 3 years of archive data. Recent reports put the water around 19°C (66°F). Check the latest conditions and entry details before you go.

Moderate window now· until 18:00, then favorable until 20:00 · sunset 19:16

Forecast for this hour · 10:00 · run 18 h ago
1.3 m (4.3 ft)waves — about a meter and a half expected (waves — about four feet expected)

Tap a factor for its source and model point · Forecast 19°C · seasonal avg 20°C ( · Forecast 66°F · seasonal avg 68°F)

Dive windows this week

Mon8:00–18:00 moderate, 18:00–20:00 favorable

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

Tue7:00–17:00 favorable, 17:00–20:00 moderate

1.0 m waves · 7 kn wind (3.2 ft waves · 7 kn wind)

Wed6:00–13:00 favorable, 13:00–17:00 moderate, 17:00–20:00 favorable

0.7 m waves · 8 kn wind (2.3 ft waves · 8 kn wind)

Thu6:00–20:00 favorable

1.0 m waves · 7 kn wind (3.4 ft waves · 7 kn wind)

Fri6:00–19:00 favorable, 19:00–20:00 moderate

1.0 m waves · 8 kn wind (3.2 ft waves · 8 kn wind)

Sat6:00–20:00 favorable

0.7 m waves · 5 kn wind (2.2 ft waves · 5 kn wind)

SunNot in the forecast yet

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 5:34 · Sunrise 6:00 · Sunset 19:16 · some windows run past sunset

Source: Open-Meteo marine · model point 1.0 km from site · updated 25 Oct, 16:20 GMT+11

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Shelly Beach (Cabbage Tree Bay), Manly

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, 17% of days have historically been favorable, water has typically been 23°C (74°F), waves have typically been 2.0 m (6.7 ft), wind has typically been 20 knots
  2. February, 14% of days have historically been favorable, water has typically been 24°C (75°F), waves have typically been 2.0 m (6.6 ft), wind has typically been 19 knots
  3. March, 22% of days have historically been favorable, water has typically been 24°C (74°F), waves have typically been 2.1 m (6.7 ft), wind has typically been 18 knots
  4. April, 7% of days have historically been favorable, water has typically been 23°C (73°F), waves have typically been 2.4 m (8.0 ft), wind has typically been 19 knots
  5. May, 11% of days have historically been favorable, water has typically been 21°C (71°F), waves have typically been 2.5 m (8.2 ft), wind has typically been 18 knots
  6. June, 26% of days have historically been favorable, water has typically been 20°C (68°F), waves have typically been 2.0 m (6.7 ft), wind has typically been 20 knots
  7. July, 22% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 2.2 m (7.2 ft), wind has typically been 20 knots
  8. August, 30% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 2.0 m (6.6 ft), wind has typically been 18 knots, historically most favorable
  9. September, 22% of days have historically been favorable, water has typically been 19°C (67°F), waves have typically been 2.0 m (6.5 ft), wind has typically been 19 knots
  10. October, 8% of days have historically been favorable, water has typically been 20°C (68°F), waves have typically been 2.1 m (7.0 ft), wind has typically been 19 knots
  11. November, 12% of days have historically been favorable, water has typically been 21°C (69°F), waves have typically been 1.9 m (6.2 ft), wind has typically been 19 knots
  12. December, 22% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 1.9 m (6.1 ft), wind has typically been 19 knots

August 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, by month

Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.

  • Spotted Wobbegong recorded here Oct–Apr, Jul–Aug (21 records)

    Orectolobus maculatusmost recent 2019

  • Giant Cuttlefish recorded here Dec–Apr (13 records)

    Ascarosepion apamamost recent 2019

  • Eastern Blue Groper recorded here Jan–Feb, Apr, Sep–Oct (12 records)

    Achoerodus viridismost recent 2017

  • Port Jackson Shark recorded here Jan–Feb, Apr, Jul–Oct (11 records)

    Heterodontus portusjacksonimost recent 2017

  • Common Stingaree recorded here Nov–Apr, Sep (8 records)

    Trygonoptera testaceamost recent 2017

  • Dusky Shark recorded here Mar–Apr (8 records)

    Carcharhinus obscurusmost recent 2019

  • Southern Maori Wrasse recorded here Feb, Apr–May, Aug–Sep (8 records)

    Ophthalmolepis lineolatamost recent 2017

  • Old Wife recorded here Feb–Apr, Aug, Dec (7 records)

    Enoplosus armatusmost recent 2017

Newest record here: 2019. Counts are occurrence records near this site from public biodiversity datasets (GBIF), grouped by calendar month across all sampled years. Sightings vary — past records are context, not a prediction.

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

No description for this site yet — divers who know it can suggest one below.

No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

Spot something off?

Help keep this listing accurate for the next diver.