Slab

left

Level 9/10

Dalbeg Slab

Isle of Lewis, Outer Hebrides, UK

🪸Sharp reef🪨Rocks⚠️Shallow😮‍💨Hold-downs🏝️Remote

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Dalbeg Slab lurks in a secluded cove on Lewis' west coast--a left-hand slab that fires during winter storms.

Dalbeg Slab surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast

Today23

Poor

3.0mW@13s

15km/h

3.0m@13s

15km/h

Thu24

Poor

1.6mW@11s

36km/h

1.6m@11s

36km/h

Fri25

Poor

4.8mW@16s

36km/h

4.8m@16s

36km/h

Sat26

Poor

2.9mW@3s

33km/h

2.9m@3s

33km/h

Sun27

Poor

2.0mW@12s

28km/h

2.0m@12s

28km/h

Mon28

Poor

2.5mW@13s

21km/h

2.5m@13s

21km/h

Tue29

Fair

1.6mW@11s

25km/h

1.6m@11s

25km/h

Wed30

Poor

1.0mWNW@10s

27km/h

1.0m@10s

27km/h

Thu1

Poor

1.9mWSW@11s

39km/h

1.9m@11s

39km/h

Fri2

Poor

1.0mWNW@11s

26km/h

1.0m@11s

26km/h

Choppy 5+ days out, less certain

View 2-year historical scores →

Today's Conditions

Find Flights

Best session: MorningAM 13 km/h · PM 14 km/h · High tide at 5am (2.6m)

Swell

3.0m

W(276°)

Score: 7/25

Period

13s

Medium period swell

Score: 20/25

Wind

15km/h

W(271°)

Score: 0/25

Weather

12°C

0.0mm29%

First light 6:43amSunrise 7:13amSunset 7:23pmLast light 7:53pm

Windswell0.5m@3sSecondary0.2mConfidence

100%

Location & Conditions

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Swell

Wind

Showing forecast for today

Hourly Forecast, Tide & Strike Windows

Strike window: 6:43–9:08am · droppingStrike window: 1:17–7:53pm · through highIdeal tide: mid to high

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

10°

11°

12°

13°

12°

11°

12°

13°

14°

12°

13°

12°

10°

12°

13°

12°

13°

12°

10°

11°

12°

9°

11°

14°

13°

11°

13°

12°

11°

12°

14°

13°

12°

13°

12°

6m3.0

sec

14s

12s

11s

10s

11s

12s

16s

15s

12s

13s

11s

10s

11s

swell

windkm/h

9g18

17g30

13g22

16g29

11g19

23g40

35g60

44g75

40g68

27g46

35g59

38g61

39g63

36g57

27g43

23g35

29g46

37g59

34g55

31g48

31g49

27g43

26g43

22g34

19g29

21g32

23g37

21g34

17g25

16g28

18g31

23g41

30g52

38g64

24g55

27g54

31g59

29g60

24g59

36g63

38g72

40g79

36g74

31g52

30g51

28g52

23g53

16g54

tidem

5:21am2.6m

11:16am0.9m

5:23pm2.9m

5:58am2.8m

11:42am0.8m

5:57pm3.5m

6:24am3.4m

12:22pm0.7m

6:23pm3.5m

12:41am0.2m

6:54am3.4m

12:50pm0.5m

6:57pm3.8m

1:11am0.2m

7:20am3.8m

1:24pm0.4m

7:28pm3.9m

1:44am0.1m

7:53am3.7m

1:58pm0.3m

8:02pm3.8m

2:15am0.0m

8:31am3.9m

2:32pm0.6m

8:39pm4.0m

3:00am0.4m

9:00am3.6m

3:14pm0.2m

9:22pm3.4m

3:33am0.3m

9:46am3.4m

3:59pm0.6m

10:08pm3.3m

Ideal tide (from tide preference)Strike windowNight

Tide times today

5:21 am

High tide - 2.57m

11:16 am

Low tide - 0.86m

5:23 pm

High tide - 2.86m

Times shown in spot-local time.

Strike Score Breakdown

Poor

Components

Swell Direction16/25

Swell Size7/25

Swell Period20/25

Wind0/25

Raw Score43/100

Adjustments

🤢 Wind History-6

💨 Gusty Wind-5

⚠️ Weak Component-10

Adjusted Score22/100

Confidence

Multiplier×1.00

Final Score22

🤢 Morning Sickness

Plan Your Strike

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Location & Conditions

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Swell

Wind

Showing forecast for today

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Spot Details

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Swell Requirements

Optimal direction: WNW (290°)
Direction range: 270° - 330°
Size range: 1.2m - 2.5m
Ideal size: 1.8m - 2.2m
Height multiplier: 0.92×
Ideal period: 14s+

Wind Requirements

Optimal direction: SE (130°)
Offshore range: 100° - 160°

Tide Requirements

Optimal tide: mid to high

Water temp

10°C

Wetsuit

5/4mm + boots

Difficulty

9/10

Crowd level

1/10

Frequently Asked Questions

What tide is best at Dalbeg Slab?

The Dalbeg Slab profile favors mid to high tide. Compare this preference with the forecast tide and local conditions before choosing a session.

What wind direction is offshore at Dalbeg Slab?

The Dalbeg Slab profile uses wind from SE (130°) as its preferred direction, with an offshore range of 100° to 160°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Dalbeg Slab?

The Dalbeg Slab scoring profile favors swell from WNW (270° to 330°), a swell-height range of 1.2m to 2.5m, and a reference period of 14s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.