Portmellon
Protected Area
Cuckoo Rock to Turbot Point
Why dive here
With 176+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and ocean sunfish (mola mola) - Portmellon offers some of Cornwall & Devon's richest shore diving. Water ranges 10-18°C, warmest July, August, September.
Portmellon is a genuinely lovely shore dive, perfect for knocking the rust off your skills or for those just starting out. At a maximum depth of 6m, it’s a calm, sheltered bay, easy to navigate and ideal for practicing buoyancy. We’ve found plenty of flatfish buried in the sand, small crabs scuttling over the rocks, and sometimes a curious dogfish cruising through. Visibility can be hit or miss, typical of Cornwall, but on a good day, it’s a peaceful spot to spend an hour underwater. It’s definitely our pick for a relaxed afternoon dip, especially if you’re new to UK diving.
Typical Portmellon Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Nearest Dive Centres to Portmellon
Dive shops near Portmellon
Viewpoint Diving Centre
Karleyth Diving Ltd.
Scuba 2000
DiveUK
Wavecrest Scuba
Seaways Diving
Reviews for Portmellon
Conditions
Ocean conditions, forecast and tides for Portmellon
Portmellon Ocean Conditions
Monthly averages for Portmellon, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (50.44, -2.73) (3km away)
October Averages
Sea Temperature
17°C
62°F · Range: 15.1–17.5°C
Air Temperature
13°C
56°F
Wind Speed
8.14 m/s
15.8 knots
Atmospheric Pressure
1011 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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