Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
The Knap surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 11 am Monday 22 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Today's The Knap sea temperature is
9.3° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at The Knap today?
The current surf forecast for The Knap at 3PM is: 0.2m 13s primary swell from a West direction (forecast issued at 11:00am December 22). The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Dec) | 1ft (0.3m) | 13s |
| Afternoon (22 Dec) | 0.5ft (0.2m) | 13s |
| Evening (22 Dec) | 0.5ft (0.2m) | 12s |
Table - waves today at The Knap. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 35 | 30 | 13 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 2 | 4 | 4 | 4 | 13 | 13 | 12 | 12 | 13 | 3 | 3 | 3 | 3 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:59AM 10.72 | 8:18PM 10.38 | 8:36AM 10.71 | 8:55PM 10.29 | 9:14AM 10.59 | 9:34PM 10.11 | ||||||||||||||||||
Low Tide / height (m) | 2:09PM 1.86 | 2:22AM 1.92 | 2:46PM 1.91 | 2:59AM 2.04 | 3:25PM 2.05 | 3:38AM 2.24 | ||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||||||||||
| Sunrise | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:06 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - |
 | |  |  | |  | | |  | | | |  | | | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 7 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 2 | 3 | 3 | 2 | 3 | 2 | 2 | 2 |
| Feels °C (?) | 5 | 6 | 6 | 5 | 6 | 5 | 4 | 4 | 1 | -1 | -3 | -3 | -3 | -4 | -4 | -5 | -6 | -6 | -6 | -7 | -6 | -7 | -8 | -8 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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.
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