Grey Rock
Protected Area
Kilkieran Bay and Islands SAC
Why dive here
With 169+ marine species recorded in the area - including dolphins, dwarf minke whales, humpback whales, ocean sunfish (mola mola) and octopuses - Grey Rock offers some of West Coast's richest diving. Water ranges 8-17°C, warmest July, August, September.
Grey Rock sits off Ireland’s west coast, a straightforward intermediate dive down to 22 metres. It’s a rocky reef, typical of the area, with gullies and crevices to explore. You’ll find the usual suspects here: crabs, lobsters, and plenty of wrasse darting between the kelp. It’s a solid dive for those looking for a reliable West Coast experience without any major challenges.
Typical Grey Rock Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 22m - Advanced Open Water certification recommended.
Cold water this month (avg 14°C). Drysuit or thick wetsuit (7mm+) recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
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Conditions
Ocean conditions, forecast and tides for Grey Rock
Grey Rock Ocean Conditions
Monthly averages for Grey Rock, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (53.32, -9.66) (22km away)
October Averages
Sea Temperature
14°C
56°F · Range: 11.7–15.4°C
Air Temperature
12°C
54°F
Wind Speed
8.2 m/s
15.9 knots
Atmospheric Pressure
1007.4 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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