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ExpertBoat entry

SS Rose Castle

Newfoundland and Labrador, Canada
Unexploded WWII ordnance remains in and around the wreck, confirmed by Canadian Department of National Defence UXO notices46 m (151 ft) depthBoat entryDrysuit typical

Boat dive — see Entry & access.

SS Rose Castle at a glance

SS Rose Castle is an expert boat dive site in Newfoundland and Labrador, Canada with depths of up to 46 m (151 ft). Typically most favorable Jul · from 3 years of archive data. Recent reports put the water around 9°C (47°F). Check the latest conditions and entry details before you go.

Moderate window now· until 19:00 · sunset 17:54

Forecast for this hour · 17:00 · run 2 h ago
0.7 m (2.4 ft)waves — under a meter expected (waves — about two feet expected)

Tap a factor for its source and model point · Forecast 9°C · seasonal avg 11°C ( · Forecast 47°F · seasonal avg 52°F)

Site hazards: Unexploded WWII ordnance remains in and around the wreck, confirmed by Canadian Department of National Defence UXO notices

Read the full hazards ↓

Dive windows this week

Lightest wind: Sat
Mon15:00–19:00 moderate

0.7 m waves · 13 kn wind (2.4 ft waves · 13 kn wind)

Tue9:00–12:00 favorable, 12:00–19:00 moderate

0.6 m waves · 13 kn wind (2.0 ft waves · 13 kn wind)

Wed9:00–19:00 moderate

0.9 m waves · 15 kn wind (3.1 ft waves · 15 kn wind)

Thu9:00–10:00 favorable, 10:00–18:00 moderate, 18:00–19:00 favorable

0.7 m waves · 14 kn wind (2.4 ft waves · 14 kn wind)

Fri9:00–11:00 favorable, 11:00–19:00 moderate

0.8 m waves · 13 kn wind (2.8 ft waves · 13 kn wind)

Sat9:00–19:00 favorable

0.5 m waves · 6 kn wind (1.7 ft waves · 6 kn wind)

Sun9:00–19:00 favorable

0.5 m waves · 10 kn wind (1.7 ft waves · 10 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 7:05 · Sunrise 7:37 · Sunset 17:54 · some windows run past sunset

Source: Open-Meteo marine · model point 13 km from site · updated 26 Oct, 14:58 GMT-2:30

Forecast only — always assess conditions on site.

Compare this weekend’s windows near SS Rose Castle

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, 73% of days have historically been favorable, water has typically been 2°C (35°F), waves have typically been 0.7 m (2.4 ft), wind has typically been 16 knots
  2. February, 65% of days have historically been favorable, water has typically been 0°C (32°F), waves have typically been 0.9 m (2.9 ft), wind has typically been 18 knots
  3. March, 69% of days have historically been favorable, water has typically been 0°C (32°F), waves have typically been 0.7 m (2.3 ft), wind has typically been 16 knots
  4. April, 78% of days have historically been favorable, water has typically been 1°C (34°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 17 knots
  5. May, 94% of days have historically been favorable, water has typically been 3°C (38°F), waves have typically been 0.5 m (1.6 ft), wind has typically been 14 knots
  6. June, 97% of days have historically been favorable, water has typically been 7°C (45°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 13 knots
  7. July, 99% of days have historically been favorable, water has typically been 12°C (54°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 12 knots, historically most favorable
  8. August, 95% of days have historically been favorable, water has typically been 15°C (58°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 13 knots
  9. September, 94% of days have historically been favorable, water has typically been 14°C (57°F), waves have typically been 0.4 m (1.4 ft), wind has typically been 13 knots
  10. October, 86% of days have historically been favorable, water has typically been 11°C (52°F), waves have typically been 0.6 m (2.0 ft), wind has typically been 15 knots
  11. November, 68% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 17 knots
  12. December, 71% of days have historically been favorable, water has typically been 4°C (39°F), waves have typically been 0.7 m (2.4 ft), wind has typically been 18 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 July 2026

Site details

SS Rose Castle is a dive site located in Canada. Depths run to roughly 35 m.

wreck

Unexploded WWII ordnance remains in and around the wreck, confirmed by Canadian Department of National Defence UXO notices — never touch or move anything ordnance-like. Deep, near-freezing water (32-45°F/0-7°C) drives significant hypothermia and decompression risk, limiting divers to two dives a day and typically requiring trimix training. Multi-level superstructure penetration is possible but is an overhead environment — untrained divers should stay outside the hull. Visibility can drop sharply near the bottom and inside the wreck.

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