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The Knap Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
The Knap surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 5 am Thursday 04 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Today's The Knap sea temperature is
10.0° C
(Which is 1.9°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 7AM is: 0.4m 9s primary swell from a West-southwest direction and 0.2m 12s secondary swell from a West direction (forecast issued at 05:00am December 04). The wind direction is predicted to be cross-shore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 2ft (0.6m) | 9s |
| Afternoon (04 Dec) | 2ft (0.6m) | 12s |
| Evening (04 Dec) | 2ft (0.6m) | 13s |
Table - waves today at The Knap. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| 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 | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 8 | 12 | 12 | 13 | 14 | 15 | 15 | 14 | 14 | 14 | 9 | 10 | 10 | 10 | 12 | 15 | 16 | 16 | 16 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 26 | 52 | 35 | 98 | 106 | 130 | 142 | 155 | 110 | 107 | 106 | 35 | 28 | 68 | 95 | 139 | 304 | 675 | 1330 | 1219 | 762 | 509 | 400 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross | cross | cross | cross- on | cross- on | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:41AM 11.25 | 6:03PM 11.44 | 6:27AM 11.71 | 6:49PM 11.67 | 7:13AM 11.92 | 7:35PM 11.64 | ||||||||||||||||||
Low Tide / height (m) | 11:49AM 1.29 | 12:11AM 1.02 | 12:35PM 0.94 | 12:55AM 0.85 | 1:21PM 0.82 | |||||||||||||||||||
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| Sunrise | - | - | 7:58 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - | - | - | 8:00 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:06 | - | - | - | - | - | - | - | 4:05 | - | - | - |
 |  |  |  |  |  | | | |  | | | | | | | | | | |  | |  | | |
Rain (mm) | 1 | 8 | 1 | - | - | - | - | - | 1 | - | - | - | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - |
| Temp. °C | 9 | 8 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 7 | 9 | 8 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 | 10 |
| Feels °C (?) | 3 | -1 | 2 | 2 | 3 | 2 | 3 | 4 | 2 | 3 | 2 | 1 | -3 | 5 | 3 | 2 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 4 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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