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The Knap Surf Forecast / Wales – South East / UK
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Live Wave Height (m)
Live Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - South East
Continuing clean conditions at The Knap (light winds from the NE at Cardiff-Wales Airport 4 km from The Knap).
1 h 43 min ago
Best Forecast Surf Conditions for The Knap this week:
The most powerful waves expected at The Knap in the next 12 days are 0.1m 10s and forecast to arrive on Friday (Aug 12) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 1s period and expected on Saturday (Aug 13) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 12th Aug) | 0.5ft (0.1m) 10s |
Table - best surf conditions forecast for The Knap over the next 12 days.
Wed 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | ||||||||||||||||||||||||
| 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 | AM | |
Rating (10 max) |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | — | |||||||||||||||||||||||||||||||||||
| Period(s) (?) | 8 | 6 | 8 | 8 | 8 | 10 | 9 | 9 | 8 | 8 | 8 | 2 | 2 | 3 | - | 7 | 6 | 5 | 5 | 9 | 6 | 6 | 3 | 3 | 5 | 6 | 7 | 6 | 6 | 7 | 7 | 8 | 7 | 7 | 7 | 5 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 0 | 1 | 8 | 6 | 8 | 10 | 12 | 15 | 27 | 31 | 17 | 15 | 8 | 25 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | glass | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | cross- on | on | cross- on | cross- on | cross- on | glass | cross- off | cross | cross- off | off | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross |
High Tide / height (m) | 6:23PM 10.39 | 6:51AM 10.51 | 7:15PM 11.15 | 7:41AM 11.14 | 8:03PM 11.77 | 8:26AM 11.58 | 8:47PM 12.13 | 9:10AM 11.76 | 9:29PM 12.19 | 9:51AM 11.67 | 10:10PM 11.94 | 10:32AM 11.30 | 10:51PM 11.42 | 11:12AM 10.73 | 11:32PM 10.69 | 11:54AM 10.01 | 12:15AM 9.84 | 12:40PM 9.25 | 1:04AM 8.99 | 1:35PM 8.56 | 2:07AM 8.28 | 2:49PM 8.10 | 3:30AM 7.93 | |||||||||||||
Low Tide / height (m) | 12:41AM 2.10 | 1:04PM 1.86 | 1:33AM 1.41 | 1:52PM 1.27 | 2:19AM 0.90 | 2:35PM 0.88 | 3:01AM 0.62 | 3:16PM 0.73 | 3:41AM 0.63 | 3:55PM 0.83 | 4:19AM 0.89 | 4:33PM 1.19 | 4:57AM 1.38 | 5:12PM 1.74 | 5:36AM 2.02 | 5:52PM 2.43 | 6:17AM 2.74 | 6:38PM 3.16 | 7:06AM 3.46 | 7:34PM 3.84 | 8:08AM 4.04 | 8:49PM 4.29 | 9:30AM 4.31 | |||||||||||||
Note: the tide data above is for Barry, Wales which is 2 km away. Surf properties and timing are calculated for The Knap.New forecast is published every 6 hours at www.surf-forecast.com. See detailed tide info and graph | ||||||||||||||||||||||||||||||||||||
Wed 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | ||||||||||||||||||||||||
| 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 | AM | |
 |  | | | | | | | |  |  | | |  | | | | |  | | |  |  | | | | | |  | | | | | | |  | |
| Summary | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | cloudy | some clouds | some clouds | some clouds | clear | some clouds | some clouds | clear | risk thund- der | clear | some clouds | rain shwrs | heavy rain | some clouds | rain shwrs | some clouds | some clouds | clear | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | rain shwrs | rain shwrs | light rain |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | 5 | 28 | - | 1 | - | - | - | 3 | 1 | 4 | 2 | - | 2 | 1 | 4 |
| Temp. °C | 29 | 27 | 27 | 32 | 28 | 29 | 33 | 28 | 30 | 34 | 28 | 28 | 32 | 23 | 23 | 25 | 19 | 22 | 23 | 19 | 21 | 22 | 17 | 18 | 19 | 17 | 19 | 19 | 17 | 19 | 19 | 15 | 16 | 17 | 14 | 14 |
| Low °C | 28 | 20 | 22 | 31 | 21 | 24 | 32 | 21 | 24 | 33 | 22 | 25 | 27 | 18 | 20 | 23 | 18 | 20 | 22 | 16 | 18 | 18 | 16 | 16 | 19 | 17 | 18 | 18 | 16 | 17 | 16 | 12 | 15 | 15 | 13 | 13 |
| Feels °C (?) | 27 | 25 | 25 | 29 | 27 | 26 | 30 | 25 | 26 | 31 | 26 | 25 | 28 | 22 | 23 | 22 | 19 | 21 | 21 | 19 | 19 | 21 | 14 | 19 | 18 | 15 | 14 | 15 | 14 | 13 | 13 | 10 | 9 | 9 | 9 | 9 |
| Sunrise | - | - | 5:52 | - | - | 5:52 | - | - | 5:54 | - | - | 5:56 | - | - | 5:58 | - | - | 5:58 | - | - | 6:01 | - | - | 6:03 | - | - | 6:03 | - | - | 6:05 | - | - | 6:07 | - | - | 6:09 |
| Sunset | 8:45 | - | - | 8:43 | - | - | 8:40 | - | - | 8:38 | - | - | 8:37 | - | - | 8:35 | - | - | 8:34 | - | - | 8:31 | - | - | 8:29 | - | - | 8:27 | - | - | 8:24 | - | - | 8:22 | - | - |
Short Range Forecast: Mostly dry. Warm (max 33°C on Fri afternoon, min 20°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 34°C on Sat afternoon, min 18°C on Sun night). Wind will be generally light. | Days 6-9 Weather Summary Heavy rain (total 36mm), heaviest during Wed night. Warm (max 23°C on Tue afternoon, min 16°C on Tue night). Wind will be generally light. | Long Range Forecast: Heavy rain (total 20mm), heaviest during Sat afternoon. Very mild (max 19°C on Fri afternoon, min 12°C on Sat night). Winds increasing (moderate winds from the WSW on Fri night, strong winds from the WSW by Sat afternoon). | |||||||||||||||||||||||||||||||||
Surf-Forecast StoreFREE! 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.
