Arbutus 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 - Arbutus Island offers some of Pacific Northwest's richest shore diving. Water ranges 7-17°C, warmest July, August, September.
Arbutus Island is one of those spots where you really feel the Pacific Northwest in your bones. We love how the kelp here just explodes out of the deeper water, climbing all the way to the surface, its fronds swaying like a slow-motion curtain. Drop down into that forest and you’re immediately enveloped in a world of green and gold light. Look closely on the rocks for the almost iridescent flash of a Blackbelly Eelpout, a real treat to spot, and we often see gangs of Shiner Perch darting through the stalks. Our favorite part has to be the chance encounters. We’ve had a couple of unforgettable moments with curious giant octopus here, always a thrill when those big eyes turn to look right at you. The Sweet Potato Sea Cucumbers add a splash of unexpected color against the muted tones of the reef, and if you’re lucky, you might even catch a glimpse of a Big Skate cruising the seafloor. It’s not a drift dive, so you can really take your time and explore. This place is perfect for divers who appreciate the subtle beauty of temperate waters and don't mind a bit of a hunt for the smaller, more unusual critters. Just remember your hood; that PNW chill is no joke.
Typical Arbutus Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
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Conditions
Ocean conditions, forecast and tides for Arbutus Island
Arbutus Island Ocean Conditions
Monthly averages for Arbutus Island, sourced from NOAA buoy & Copernicus Marine data - nearest station: 9449880 - Friday Harbor, WA (27km away)
August Averages
Sea Temperature
16.51°C
62°F · Range: 10.5–15.6°C
Air Temperature
15.7°C
60°F
Current Speed
11.4 cm/s
Direction: SE (127.9°)
Salinity
20.02 PSU
Wind Speed
1.6 m/s
3.1 knots
Atmospheric Pressure
1016.6 hPa
Based on 5 years of monitoring data · Data sources: NOAA NDBC + Copernicus Marine (EU)
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