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Porth Hellick - Photo 1
Photo: Porth Hellick Bay - geograph.org.uk - 934745 by Bob Embleton (CC BY-SA 2.0) License

Porth Hellick

Beach

Rainy today
Editor's Notes
Porth Hellick (Cornish: Porth Helyk, meaning willows cove) is a tidal inlet on the south coast of St Mary’s, the largest island in the Isles of Scilly. The bay is delineated to the south by a headland known as the Giant’s Castle, which is an Iron Age cliff fort, and Porth Hellick Down and Porth Hellick Point to the north. At low tide a wide expanse of sand and rocks are exposed and a bar of fine shingle provides a barrier from the sea to form the largest area of (usually) fresh water on St Mary’s.

Interactive map not available

Current water conditions

Water temp
67°F
19°C
Cool water — ease in carefully. Cool enough to cause cold-water shock on a sudden entry. Get in gradually, let your breathing settle, and keep an eye on weaker swimmers.

Live data from NOAA buoy 62107 (15.2 mi away), as of Aug 21, 2:00 AM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.

Weather at Porth Hellick

H: 64° L: 60°
Patchy rain nearby
Patchy rain nearby
61°
|
Feels like 55°
Precipitation
70%
Humidity
75%
Wind
13 mph
UV Index
0
Water Conditions:
🥶Too cold for most swimmers🌧️Rain expected
12 AM
Patchy rain nearby
64°
3 AM
Patchy rain nearby
62°
6 AM
Moderate rain at times
61°
9 AM
Patchy rain nearby
61°
12 PM
Cloudy
61°
3 PM
Sunny
60°
6 PM
Patchy rain nearby
61°
9 PM
Patchy rain nearby
62°

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Frequently asked questions

Where is Porth Hellick?
Porth Hellick is a beach in Cornwall.
What is the water temperature at Porth Hellick?
As of August 21, 2026, the water temperature at Porth Hellick in Cornwall is 67°F (19°C), measured by NOAA buoy 62107, 15.2 miles away.
Can you swim at Porth Hellick?
There is no fixed answer for Porth Hellick: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Porth Hellick in Cornwall. Check current water conditions before you go, and follow posted signs and local guidance.

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Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

🌧️
Right Now
Not ideal for outdoor activities today
🏖️ Swimming Beaches Tips:
  • ›Arrive early for best parking and beach spot selection
  • ›Check for lifeguard schedules and swim only in designated areas
  • ›Bring reef-safe sunscreen to protect marine life
  • ›Watch for beach flags indicating water conditions
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Cornwall

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