Cowley Rock
Why dive here
With 58+ marine species recorded in the area - including blue sharks, blue whales, humpback whales, orcas and seals & sea lions - Cowley Rock offers some of Alaska's richest diving. Water ranges 5-15°C, warmest July, August, September.
Cowley Rock, up in Alaska, isn't your typical tropical dive, but it's got a raw, rugged charm we really appreciate. You're looking at a rocky reef here, with a backdrop of that cool, dark Pacific water. We often spot massive sunflower stars making their slow crawl across the substrate, alongside green sea urchins tucked into crevices. The kelp here can be surprisingly vibrant, and if you keep an eye out, you might even catch coho or pink salmon streaking by, especially in season. It’s a good spot for divers who enjoy cooler water and are keen to see what the northern Pacific truly holds.
Safety Notes
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for Cowley Rock
Conditions
Ocean conditions, forecast and tides for Cowley Rock
Cowley Rock Ocean Conditions
Monthly averages for Cowley Rock, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (57, -135.4) (0km away)
October Averages
Sea Temperature
11°C
51°F · Range: 8.5–12.8°C
Air Temperature
8°C
47°F
Wind Speed
6.44 m/s
12.5 knots
Atmospheric Pressure
1007.9 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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