The Knap surf break

The Knap surfForecast / Wales – South East / UK

information circle48hr Weather and Surf, issued 12 pm Tuesday 19 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Today's The Knap sea temperature is
12.7° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at The Knap today?

The current surf forecast for The Knap at 4PM is: 0.5m 8s primary swell from a West-southwest direction (forecast issued at 12:00pm May 19). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (19 May)1ft (0.3m)8s
Afternoon (19 May)1.5ft (0.5m)8s
Evening (19 May)2ft (0.6m)9s

Table - waves today at The Knap. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Tue morning. Very mild (max 18°C on Thu morning, min 12°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue night, light winds from the SSW by Wed night).

Tue
19
Wednesday
20
Thursday
21
Fri
22
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.3
WSW
8
0.4
WSW
8
0.5
WSW
8
0.6
WSW
9
0.6
WSW
9
0.7
WSW
9
0.8
WSW
10
0.8
WSW
14
0.8
W
13
0.7
W
13
0.7
W
13
0.6
W
13
0.5
W
13
0.5
W
12
0.4
WSW
12
0.4
WSW
12
0.4
WSW
12
0.3
WSW
11
0.3
WSW
11
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
Wave Graph
Metric surfscale
Energy kJ
14
28
41
59
62
86
120
269
229
171
166
121
84
75
46
46
45
23
22
22
20
19
18
18
Wind (km/h)
25
SW
30
WSW
35
WSW
35
SW
35
SW
35
WSW
40
WSW
35
WSW
30
WSW
30
W
30
W
20
W
10
WSW
10
SSW
10
SSE
10
SSE
10
S
15
S
20
SSE
15
SSE
10
SE
10
E
10
E
10
E
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
High Tide
9:13AM11.62m
9:36PM11.72m
10:00AM11.17m
10:24PM11.25m
10:51AM10.54m
11:16PM10.62m
Low Tide
3:17PM0.98m
3:43AM1.09m
4:03PM1.43m
4:33AM1.59m
4:52PM2.04m
5:27AM2.21m
light rain
rain showers
rain showers
rain showers
part cloud
rain showers
light rain
part cloud
rain showers
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:15
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:02
9:04
9:05
9:07
1
1
1
1
1
1
1
Temp °C
14
15
16
14
12
12
12
12
13
14
15
15
14
13
13
13
15
18
18
17
15
14
14
15
9
9
10
8
5
5
5
5
7
8
10
12
13
12
11
11
13
16
14
15
13
13
12
14
Swell 1
Height (m)
Direction
Period (s)
0.3
WSW
8
0.5
W
13
0.5
W
12
0.4
WSW
12
0.4
WSW
12
0.4
WSW
12
0.3
WSW
11
0.3
WSW
11
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
0.3
WSW
10
Energy kJ
14
84
75
46
46
45
23
22
22
20
19
18
18
Swell 2
Height (m)
Direction
Period (s)
Energy kJ
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
0.2
SSW
3
0.4
WSW
8
0.5
WSW
8
0.6
WSW
9
0.6
WSW
9
0.7
WSW
9
0.8
WSW
10
0.8
WSW
14
0.8
W
13
0.7
W
13
0.7
W
13
0.6
W
13
Energy kJ
1
28
41
59
62
86
120
269
229
171
166
121
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
5
5
4
4
4
1
1
2
1
2
1
2
1
1
1
1
1
Distance (km)
499
486
309
309
309
389
427
301
301
301
165
153
29
29
33
25
33
32
33
65
14
14
14
14
Best forecast wave conditions in Wales - South East
Rating
(10 max)
2
2
2
2
2
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
2
2
3
2
1
4
2
4
4
4
4
3
2
2
2
3
3
2
3
2
3
Header Global
Rating
(10 max)
4
4
4
4
5
5
5
5
4
4
4
5
5
4
4
5
5
4
4
5
4
5
5
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest