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Reef
both
Level 5/10

Sandy Bay

Llantwit Major, UK
🪨Rocks🌀Strong rips

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.

10-Day Forecast
Today
25
0
Poor
0.2m
@8s
24km/h
Fri
26
0
Poor
0.4m
@8s
24km/h
Sat
27
0
Poor
0.4m
@6s
10km/h
Sun
28
0
Poor
0.4m
@9s
25km/h
Mon
29
0
Poor
1.0m
@10s
22km/h
Tue
30
6
Poor
0.9m
@10s
12km/h
Wed
1
1
Poor
1.4m
@9s
26km/h
Thu
2
0
Poor
0.8m
@8s
11km/h
Fri
3
0
Poor
0.9m
@9s
20km/h
Sat
4
0
Poor
0.1m
@3s
35km/h

Today's Conditions

Find Flights
Swell
0.2m
W(264°)
Score: 0/25
Period
8s
Short period / windswell
Score: 2/25
Wind
24km/h
E(89°)
Score: 1/25
Weather
29°C
0.0mm6%
Windswell Component
0.3mE@2s
Secondary Swell
0.1mW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 19 km/h ENE|PM: 22 km/h E
Lighter winds early (19 km/h)
Tide at 8am (-3.0m)

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
View in OpenStreetMap
Showing forecast for today

Tide Times

2:59 am
High tide - 2.63m
8:46 am
Low tide - -3.01m
3:32 pm
High tide - 2.66m
9:16 pm
Low tide - -2.85m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction10/25
Swell Size0/25
Swell Period2/25
Wind1/25
Raw Score13/100
Adjustments
🌊💨 Windswell-7
⚠️ Weak Component-15
📉 Undersized Swell-11
🚫 Undersized Capmax 15
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0
🌊💨 Windswell
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Spot Details

Swell Requirements

Optimal direction
SW (235°)
Direction range
210° - 260°
Size range
0.9m - 2.4m
Ideal size
2.0m
Height multiplier
0.97×
Ideal period
14s+

Wind Requirements

Optimal direction
NNE (20°)
Offshore range
0° - 45°

Tide Requirements

Optimal tide
mid

Water temp

13°C

Wetsuit

4/3mm fullsuit

Bottom

Mixed

Difficulty

5/10

Crowd level

3/10

Best Season

Peak: Sep, Oct, Nov, Dec, Jan, Feb, Mar

Getting There

Airport
CWL
Drive time
30 min
Data quality
community

Strike Log

Community Discussion