The Knap surf break

The Knap surfForecast / Wales – South East / UK

information circle48hr Weather and Surf, issued 12 pm Friday 17 Apr 2026 BST
Forecast update in hr  min  s Forecast update imminent
Today's The Knap sea temperature is
10.8° C
(Which is 1.0°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 6PM is: 0.5m 12s primary swell from a West direction (forecast issued at 12:00pm April 17). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (17 Apr)1.5ft (0.4m)12s
Afternoon (17 Apr)1.5ft (0.5m)12s
Evening (17 Apr)1.5ft (0.5m)12s

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


Updates in  hr  min  s Forecast update imminent
Friday
17
Saturday
18
Sunday
19
Monday
20
10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM
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
Wave Height (m) & direction (?)
0.4
WSW
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.5
W
0.4
W
0.4
W
0.3
W
0.3
W
0.3
W
0.2
W
0.2
W
0.2
W
0.2
W
0.2
W
0.2
W
Period(s) (?)12121212121211111111111010101010910101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)487167707170646159565554533231171616888887
Wind
(km/h)
25
S
20
SW
20
W
15
SW
15
SW
20
WSW
25
WSW
25
W
20
WNW
20
WNW
20
WNW
20
NW
15
NNW
5
NNW
5
N
5
NE
10
ENE
5
ESE
5
S
5
WNW
10
NNE
15
NE
15
ENE
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
glassonglassoffcross-
off
cross-
off
cross-
off
High Tide
/ height (m)
7:29AM
11.72
7:49PM
11.82
8:08AM
12.14
8:28PM
12.15
8:47AM
12.24
9:07PM
12.15
Low Tide
/ height (m)
1:40PM
0.73
1:56AM
0.63
2:16PM
0.42
2:34AM
0.41
2:53PM
0.39
3:12AM
0.50
Friday
17
Saturday
18
Sunday
19
Monday
20
Sunrise-------6:11-------6:09-------6:07
Sunset---8:12-------8:13-------8:15----
part cloud
light rain
light rain
clear
part cloud
part cloud
clear
part cloud
clear
cloud
cloud
clear
clear
clear
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
Rain (mm)
-11---------------------
Temp. °C131210111099999111110987810111211866
Feels °C (?)8868654444666654588108322
  • 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.


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