Sandy Bay at Llantwit Major is a Welsh bodyboard and surf wedge that wakes up when Bristol Channel energy meets the right tide and bank shape. The wave is fickle, short and powerful, with local knowledge making a big difference. Treat the pin and conditions as a starting point and check the tide carefully before committing.
Model forecast for swell, wind and tide.
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Water temp
13°C
Wetsuit
4/3mm fullsuit
Bottom
Mixed
Difficulty
5/10
Crowd level
3/10
Sandy Bay is a reef break in Llantwit Major, UK, with peaks that run both left and right. It's also a renowned bodyboarding wave.
Sandy Bay picks up swell from the SSW round to the W, and it's best when it's coming straight out of the SW. It starts working at around 0.9m and handles up to about 2.4m, with the sweet spot around 1.6 to 2m. Period matters too: aim for 14s or longer, as anything under 10s tends to be weak. These are the numbers our scoring uses, so treat them as a guide rather than a promise.
A NNE wind is dead offshore at Sandy Bay, and anything from the N round to the NE keeps it clean. The morning is typically the best window, roughly 6am to midday. Light winds from other directions can still be fine; strong offshores can make it hard to get into waves.
Sandy Bay is at its best around mid tide.
The most reliable run of swell at Sandy Bay comes Sep to Mar.
The water at Sandy Bay averages around 13°C, so you'll want a 4/3mm fullsuit. It shifts a few degrees through the year, so check the season before you pack.
It's more of an intermediate wave, rated 5/10 for difficulty, so newer surfers are best off sticking to the smaller days. The lineup is usually quiet (crowd 3/10). Rock platform. Bristol Channel funnels swell.
The nearest airport on our list is CWL, then it's roughly a 30-minute drive.
The closest breaks we track are Porthcawl Point (16 km), Rest Bay (17 km) and Lynmouth (28 km), handy when Sandy Bay isn't working.
Peak: Sep, Oct, Nov, Dec, Jan, Feb, Mar
South Wales' most popular - High tide specialist - Sea wall barrels
Porthcawl's most consistent - All abilities - Rapidly changing tides
Devon's fickle left point - Cliff access only - Needs size to fire
Gower's powerful reef - A-frame peaks - Best at high tide
Gower reef break - Needs size to fire - Sharp reef
Gower's shallow reef - Low tide specialist - Sharp and technical