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Joan Rock

British Columbia, CanadaDirections
7mm or semi-dry + hood typical

Joan Rock at a glance

Joan Rock is a dive site in British Columbia, Canada. Typically most favorable Jan–Dec · from 3 years of archive data. Recent reports put the water around 12°C (54°F). Check the latest conditions and entry details before you go.

Next window today· 8:00–19:00 · favorable · sunset 18:03

Forecast for this hour · 1:00 · run 3 h ago
0.2 m (0.8 ft)waves — under half a meter expected (waves — under a foot expected)

Tap a factor for its source and model point · Forecast 12°C · seasonal avg 12°C ( · Forecast 54°F · seasonal avg 53°F)

Dive windows this week

Mon8:00–19:00 favorable

0.1 m waves · 5 kn wind (0.3 ft waves · 5 kn wind)

Tue8:00–19:00 favorable

0.1 m waves · 3 kn wind (0.2 ft waves · 3 kn wind)

Wed8:00–18:00 favorable

0.0 m waves · 3 kn wind (0.1 ft waves · 3 kn wind)

Thu8:00–18:00 favorable

0.5 m waves · 8 kn wind (1.6 ft waves · 8 kn wind)

Fri8:00–18:00 favorable

0.1 m waves · 5 kn wind (0.3 ft waves · 5 kn wind)

Sat8:00–18:00 favorable

0.1 m waves · 2 kn wind (0.2 ft waves · 2 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 7:18 · Sunrise 7:51 · Sunset 18:03 · some windows run past sunset

Source: Open-Meteo marine · model point 2.7 km from site · updated 25 Oct, 22:20 GMT-7

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Joan Rock

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, 100% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.3 m (1.0 ft), wind has typically been 8 knots, historically most favorable
  2. February, 100% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.3 m (1.1 ft), wind has typically been 9 knots, historically most favorable
  3. March, 100% of days have historically been favorable, water has typically been 8°C (46°F), waves have typically been 0.3 m (0.9 ft), wind has typically been 9 knots, historically most favorable
  4. April, 100% of days have historically been favorable, water has typically been 9°C (49°F), waves have typically been 0.3 m (0.9 ft), wind has typically been 9 knots, historically most favorable
  5. May, 100% of days have historically been favorable, water has typically been 11°C (52°F), waves have typically been 0.2 m (0.5 ft), wind has typically been 8 knots, historically most favorable
  6. June, 100% of days have historically been favorable, water has typically been 13°C (55°F), waves have typically been 0.2 m (0.6 ft), wind has typically been 8 knots, historically most favorable
  7. July, 100% of days have historically been favorable, water has typically been 15°C (58°F), waves have typically been 0.2 m (0.5 ft), wind has typically been 7 knots, historically most favorable
  8. August, 100% of days have historically been favorable, water has typically been 15°C (60°F), waves have typically been 0.2 m (0.5 ft), wind has typically been 7 knots, historically most favorable
  9. September, 100% of days have historically been favorable, water has typically been 14°C (58°F), waves have typically been 0.2 m (0.5 ft), wind has typically been 6 knots, historically most favorable
  10. October, 100% of days have historically been favorable, water has typically been 12°C (53°F), waves have typically been 0.2 m (0.8 ft), wind has typically been 7 knots, historically most favorable
  11. November, 100% of days have historically been favorable, water has typically been 10°C (50°F), waves have typically been 0.3 m (0.9 ft), wind has typically been 8 knots, historically most favorable
  12. December, 100% of days have historically been favorable, water has typically been 9°C (48°F), waves have typically been 0.3 m (1.1 ft), wind has typically been 9 knots, historically most favorable

January, February, March, April, May, June, July, August, September, October, November, and December have 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

Joan Rock is a dive site located in Canada.

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

Reviews

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