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The Knap Surf Forecast / Wales – South East / UK

Best Forecast Surf Conditions for The Knap this week:
The most powerful waves expected at The Knap in the next 12 days are 0.5m 11s and forecast to arrive on Friday (Oct 06) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives.
Wave Type | Time (BST) & Date | Wave Height & Period |
---|---|---|
Next good surf (1 star+) | - | - |
Best Surf | - | - |
Most Powerful | 10PM (Fri 6th Oct) | 1.5ft (0.5m) 11s |
Table - best surf conditions forecast for The Knap over the next 12 days.
Monday 02 | Tuesday 03 | Wednesday 04 | Thursday 05 | Friday 06 | Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | |||||||||||||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map | ||||||||||||||||||||||||||||||||||||
Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
Period(s) (?) | 9 | 9 | 12 | 4 | 6 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 8 | 9 | 10 | 9 | 11 | 11 | 12 | 12 | 13 | 12 | 11 | 10 | 10 | 9 | 9 | 9 | 6 | 7 | 6 | 7 | 13 | 14 | 13 | 12 |
Wave (?)Graph ![]() | ||||||||||||||||||||||||||||||||||||
Energy (?) | 15 | 15 | 25 | 6 | 36 | 23 | 14 | 19 | 12 | 7 | 6 | 7 | 36 | 44 | 31 | 28 | 38 | 37 | 30 | 26 | 32 | 26 | 11 | 8 | 7 | 6 | 6 | 2 | 3 | 14 | 7 | 4 | 3 | 4 | 3 | 3 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross | on | cross | cross | cross | cross- on | cross- on | cross | cross- on | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross |
High Tide / height (m) | 9:38PM 12.16 | 9:57AM 11.74 | 10:16PM 11.43 | 10:35AM 10.99 | 10:55PM 10.47 | 11:15AM 10.07 | 11:37PM 9.41 | 12:01PM 9.10 | 12:30AM 8.39 | 1:04PM 8.24 | 1:51AM 7.64 | 2:41PM 7.79 | 3:41AM 7.57 | 4:19PM 8.06 | 4:59AM 8.13 | 5:22PM 8.74 | 5:49AM 8.88 | 6:06PM 9.48 | 6:27AM 9.63 | 6:41PM 10.19 | 6:59AM 10.30 | 7:13PM 10.78 | ||||||||||||||
Low Tide / height (m) | 3:22PM 0.39 | 3:41AM 0.59 | 3:57PM 0.90 | 4:15AM 1.26 | 4:34PM 1.65 | 4:52AM 2.11 | 5:14PM 2.55 | 5:33AM 3.04 | 6:02PM 3.49 | 6:25AM 3.95 | 7:11PM 4.29 | 7:47AM 4.62 | 9:00PM 4.61 | 9:45AM 4.65 | 10:43PM 4.21 | 11:07AM 4.07 | 11:40PM 3.50 | 11:56AM 3.32 | 12:19AM 2.77 | 12:32PM 2.58 | 12:51AM 2.10 | 1:04PM 1.93 | 1:22AM 1.54 | |||||||||||||
Monday 02 | Tuesday 03 | Wednesday 04 | Thursday 05 | Friday 06 | Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | |||||||||||||||||||||||||
Sunrise | 7:13 | - | - | 7:16 | - | - | 7:16 | - | - | 7:18 | - | - | 7:20 | - | - | 7:22 | - | - | 7:24 | - | - | 7:24 | - | - | 7:26 | - | - | 7:28 | - | - | 7:30 | - | - | 7:31 | - | - |
Sunset | - | 6:50 | - | - | 6:46 | - | - | 6:45 | - | - | 6:43 | - | - | 6:40 | - | - | 6:37 | - | - | 6:36 | - | - | 6:34 | - | - | 6:31 | - | - | 6:29 | - | - | 6:27 | - | - | 6:24 | - |
Rain (mm) | - | - | 1 | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 6 | 7 | 2 | - | 2 | - | - | 1 | 3 |
Temp. °C | 16 | 16 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 14 | 15 | 16 | 17 | 19 | 17 | 19 | 19 | 18 | 21 | 22 | 19 | 18 | 19 | 17 | 18 | 16 | 17 | 13 | 11 | 10 | 12 | 12 | 9 | 12 | 12 | 12 |
Feels °C (?) | 15 | 15 | 14 | 8 | 8 | 10 | 10 | 10 | 10 | 11 | 12 | 12 | 14 | 16 | 15 | 16 | 17 | 19 | 19 | 21 | 18 | 17 | 20 | 18 | 15 | 14 | 16 | 12 | 7 | 7 | 8 | 7 | 4 | 6 | 5 | 5 |
Short Range Forecast: Some drizzle, heaviest during Mon night. Very mild (max 16°C on Mon morning, min 12°C on Mon night). Winds increasing (calm on Mon morning, fresh winds from the W by Tue morning). | Days 3-6 Weather Summary Some drizzle, heaviest during Thu night. Very mild (max 19°C on Fri afternoon, min 13°C on Thu morning). Wind will be generally light. | Days 6-9 Weather Summary Some drizzle, heaviest during Tue night. Warm (max 22°C on Sun afternoon, min 15°C on Mon night). Wind will be generally light. | Long Range Forecast: Heavy rain (total 21mm), heaviest during Wed morning. Very mild (max 13°C on Wed morning, min 8°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the SW by Fri night). |
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Knap surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for The Knap at:
surf-forecast.com
Information about the The Knap Surf forecast
The above surf forecast table for The Knap provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Knap can be found by selecting the local surf guide option on the grey menu. Our The Knap surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (The Knap) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for The Knap may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
The Knap is 2 km (1 miles) from Barry. If you plan a holiday in Wales - South East, look for hotels and other accommodation in Barry. Barry has rooms for a wide range of budgets as well as car hire and transport links.