St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes 48 hour detailed Surf Forecast

Issued: 12 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.3° C
1.4° 

St Agnes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at St Agnes today (20 Aug):

  • Morning surf: Morning surf (20 Aug, local time) - 7.5ft (2.3m), 9s period with WNW swell.
  • Afternoon surf: Afternoon surf (20 Aug, local time) - 7ft (2.1m), 9s period with WNW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 6ft (1.8m), 10s period with WNW swell.

The current surf forecast for St Agnes at 8PM is: 2.2m 9s primary swell from a West-northwest direction and 1.9m 9s secondary swell from a West-northwest direction, 0.3m 14s secondary swell from a Southwest direction (forecast issued at 12:00pm August 20). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (20 Aug)7.5ft (2.3m)9s
Afternoon (20 Aug)7ft (2.1m)9s
Evening (20 Aug)6ft (1.8m)10s

Table - waves today at St Agnes. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 4mm), mostly falling on Thu morning. Very mild (max 18°C on Thu morning, min 14°C on Fri night). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the NE by Sat night).

Thu
20
Friday
21
Saturday
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
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
WNW
9
2.2
WNW
9
2.1
WNW
9
2
WNW
9
1.7
WNW
10
1.5
W
10
1.3
W
9
1.2
W
9
1.1
W
8
1
W
8
0.9
WNW
8
0.9
WNW
6
0.6
W
8
0.6
W
9
0.5
W
8
0.6
W
10
0.4
W
10
0.4
W
9
0.4
W
9
0.5
W
9
0.4
SW
15
Wave Graph
Metric surfscale
Energy kJ
808
773
721
655
551
423
287
220
173
137
119
53
50
53
31
67
29
25
25
40
55
Wind (km/h)
30
WNW
30
NW
25
NW
25
NW
20
N
15
N
15
NNE
15
NNE
25
N
25
NNW
20
NNW
20
NNW
15
N
10
N
10
NNE
10
E
15
E
15
ENE
15
NE
15
NNE
15
NNE
Wind State
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-off
cross-off
cross
cross
cross-on
cross-on
High Tide
10:52AM4.83m
11:20PM4.59m
11:51AM4.44m
00:32AM4.24m
1:16PM4.23m
Low Tide
5:10PM1.88m
5:37AM2.10m
6:16PM2.23m
6:55AM2.37m
7:50PM2.36m
rain showers
rain showers
part cloud
clear
clear
clear
clear
part cloud
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:29
8:27
 mm
1
1
1
1
Temp °C
18
18
17
17
15
15
15
15
15
15
15
15
14
15
15
14
16
18
18
18
16
Feels °C
13
13
12
13
12
12
12
12
10
10
10
11
11
13
13
12
13
15
15
15
13
  • 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
How to use the Wavefinder 

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 St Agnes 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