Rubly Island
Protected Area
Kellett Bluff Voluntary No-take
Why dive here
With 35+ marine species recorded in the area - including humpback whales, orcas and seals & sea lions - Rubly Island offers some of Pacific Northwest's richest reef diving. Water ranges 7-17°C, warmest July, August, September.
Rubly Island, for us, is a dive that always feels like coming home. It’s got that classic Pacific Northwest vibe without being too moody. We’ve had dives there where the visibility was a glorious 15 metres, sun filtering down through the kelp, making everything glow a soft emerald. But even on a darker day, it holds a quiet charm. Drop in and you’re immediately enveloped by the swaying kelp forest. Keep an eye out for the Plainfin Midshipman, they’re quirky little bottom dwellers. Our favourite find, though, is always the giant octopus tucked into a crevice – look for the tell-tale pile of crab shells outside their den. If you're lucky, you might even catch a glimpse of the impressive Red Salmon runs depending on the season, a truly spectacular sight. It’s not a drift dive, which we appreciate, giving you time to really poke around. We'd suggest going on a slack tide, gives you more time to hunt for those Humpy Shrimp and Green Sea Urchins without fighting a current. It’s a great spot for newer cold-water divers to get comfortable, but offers enough quiet corners to keep experienced eyes busy too.
Typical Rubly Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
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Conditions
Ocean conditions, forecast and tides for Rubly Island
Rubly Island Ocean Conditions
Monthly averages for Rubly Island, sourced from NOAA NDBC + Copernicus Marine (EU) - nearest station: 9449880 - Friday Harbor, WA (27km away)
October Averages
Sea Temperature
11°C
53°F · Range: 9.6–11.4°C
Air Temperature
11°C
51°F
Current Speed
3.16 cm/s
Direction: E (108.4°)
Salinity
23.61 PSU
Wind Speed
1.8 m/s
3.5 knots
Atmospheric Pressure
1018.3 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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