Sivart Rock
Why dive here
With 58+ marine species recorded in the area - including blue sharks, blue whales, humpback whales, orcas and seals & sea lions - Sivart Rock offers some of Alaska's richest diving. Water ranges 5-15°C, warmest July, August, September.
Sivart Rock in Alaska is less about vibrant colours and more about the hardy, fascinating life that thrives in colder water. Expect to find a rocky seafloor, home to the usual suspects like green sea urchins and stout red rock crabs. We’ve spotted plenty of California spot prawns here, tucked into crevices, alongside schools of Pacific herring swirling past. If you’re a fan of unique finds and don’t mind a bit of a chill, this site offers a different kind of beauty, suited for those who appreciate temperate diving.
Safety Notes
Cold water this month (avg 11°C). Drysuit or thick wetsuit (7mm+) recommended.
Reviews for Sivart Rock
Conditions
Ocean conditions, forecast and tides for Sivart Rock
Sivart Rock Ocean Conditions
Monthly averages for Sivart 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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