Strike Mission
Reef
both
Level 5/10

Sandy Bay

Llantwit Major, UK
🪨Rocks🌀Strong rips
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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
Today9
0
Poor
0.2m@9s
16km/h
Mon10
0
Poor
0.5m@5s
15km/h
Tue11
0
Poor
0.2m@7s
13km/h
Wed12
14
Poor
0.4m@3s
8km/h
Thu13
16
Poor
0.8m@9s
10km/h
Fri14
12
Poor
0.6m@8s
9km/h
Sat15
6
Poor
0.4m@8s
12km/h
Sun16
4
Poor
0.3m@7s
11km/h
Mon17
0
Poor
0.2m@7s
11km/h
Tue18
0
Poor
0.1m@4s
13km/h
5+ days out, less certain
View 2-year historical scores →

Today's Conditions

Find Flights
Best session: MorningAM 5 km/h · PM 25 km/h · Tide at 9am (2.6m)
Swell
0.2m
W(263°)
Score: 0/25
Period
9s
Short period / windswell
Score: 4/25
Wind
16km/h
WNW(294°)
Score: 1/25
Weather
20°C
0.0mm17%
First light 5:20amSunrise 5:50amSunset 8:48pmLast light 9:18pm
Windswell0.1m@1sConfidence
100%

Location & Conditions

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

Hourly Forecast, Tide & Strike Windows

Strike window: 5:20–7:19am · droppingStrike window: 10:58am–2:20pm · risingStrike window: 5:04–7:58pm · droppingIdeal tide: mid
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
15°
20°
22°
21°
20°
15°
19°
21°
21°
20°
16°
18°
23°
26°
27°
16°
20°
24°
28°
29°
18°
23°
28°
29°
27°
16°
22°
25°
26°
25°
15°
18°
23°
25°
25°
15°
17°
20°
22°
22°
14°
17°
21°
23°
22°
17°
18°
19°
20°
19°
2m1.0
sec
9s
9s
9s
9s
9s
4s
5s
5s
5s
5s
7s
7s
7s
7s
7s
10s
3s
3s
3s
3s
9s
9s
9s
9s
9s
8s
8s
8s
8s
8s
8s
8s
8s
8s
8s
7s
7s
7s
7s
7s
7s
7s
7s
7s
7s
4s
4s
4s
4s
4s
swell
windkm/h
5g10
6g12
16g27
24g40
27g45
9g12
10g17
16g28
21g35
19g32
16g27
13g26
12g26
13g27
11g21
10g17
10g21
8g19
7g16
5g12
5g9
3g7
8g19
17g34
18g34
4g6
3g10
8g18
13g27
19g35
11g18
10g18
10g24
13g35
17g40
7g14
5g16
13g29
15g35
16g37
8g12
4g14
9g24
17g35
21g44
6g25
5g27
16g35
20g38
20g39
tidem
2:58am7.4m
9:03am2.6m
3:41pm7.7m
9:56pm2.4m
4:19am7.9m
10:37am2.2m
4:54pm8.3m
5:25am8.6m
11:52am1.5m
5:53pm9.2m
6:19am9.2m
12:48pm0.8m
6:44pm9.8m
1:17am0.4m
7:08am9.7m
1:34pm0.4m
7:28pm10.2m
2:00am0.0m
7:53am9.9m
2:13pm0.2m
8:11pm10.3m
2:38am0.0m
8:32am9.8m
2:49pm0.2m
8:51pm10.1m
3:10am0.2m
9:10am9.6m
3:21pm0.5m
9:27pm9.7m
3:41am0.5m
9:47am9.1m
3:52pm0.8m
10:03pm9.2m
Ideal tide (from tide preference)Strike windowNight

Tide times today

2:58 am
High tide - 7.44m
9:03 am
Low tide - 2.61m
3:41 pm
High tide - 7.67m
9:56 pm
Low tide - 2.44m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction10/25
Swell Size0/25
Swell Period4/25
Wind1/25
Raw Score15/100
Adjustments
🌊💨 Windswell-3
💨 Gusty Wind-5
⚠️ Weak Component-5
📉 Undersized Swell-11
🚫 Undersized Capmax 15
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0

Plan Your Strike

Return flights to CWL, departing today with a 5-day trip window.

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Spot Details

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Swell Requirements

Optimal direction
SW (235°)
Direction range
210° - 260°
Size range
0.9m - 2.4m
Ideal size
1.9m
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

Frequently Asked Questions

What tide is best at Sandy Bay?

Sandy Bay works best on a mid tide. The tide chart above shows today’s strike window.

What wind direction is offshore at Sandy Bay?

Offshore wind at Sandy Bay blows from the NNE (20°). Anything in the 0° to 45° range grooms the faces; outside it, expect chop or bumpy conditions.

What swell size and direction work best at Sandy Bay?

Sandy Bay wants SW swell (210° to 260°) between 0.9m and 2.4m, with a period of 14s or more for quality waves.

When is the best time of year to surf Sandy Bay?

The main season at Sandy Bay is Sep, Oct, Nov, Dec, Jan, Feb, Mar.

How do I get to Sandy Bay?

Fly into CWL, then allow about 30 minutes by road.

What kind of wave is Sandy Bay?

Sandy Bay is a reef break, a peak with lefts and rights over a mixed bottom. Difficulty is rated 5/10.

Best Season

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

Getting There

Airport
CWL
Drive time
30 min
Data quality
community

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Strike Log

Community Discussion