St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes 48 hour detailed Surf Forecast

Issued: 6 am 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 (1.9m), 10s period with WNW swell.

The current surf forecast for St Agnes at 1PM is: 2.2m 9s primary swell from a West-northwest direction and 0.3m 14s secondary swell from a Southwest direction (forecast issued at 06:00am 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 (1.9m)10s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Fri morning. Very mild (max 18°C on Sat morning, min 14°C on Fri morning). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the NE by Fri night).

Thursday
20
Friday
21
Saturday
22
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
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
0
0
0
1
0
0
0
0
Swell
Height Map
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
W
8
2.3
W
9
2.3
WNW
9
2.2
WNW
9
2.1
WNW
9
2
WNW
9
1.8
WNW
10
1.4
W
10
1.3
W
9
1.2
W
9
1.1
W
8
1
W
8
0.9
WNW
8
0.8
WNW
6
0.7
WNW
8
0.6
W
9
0.7
W
8
0.6
W
10
0.6
W
10
0.4
W
9
0.4
W
9
0.4
W
9
0.4
SW
15
Wave Graph
Metric surfscale
Energy kJ
736
828
791
773
721
655
567
361
281
220
169
137
112
44
50
53
63
67
67
25
25
25
55
Wind (km/h)
30
WNW
30
WNW
30
WNW
30
NW
25
NW
25
NW
15
N
15
N
15
N
15
NNE
25
N
25
N
25
NNW
20
NNW
15
N
10
N
10
NNE
10
NE
15
E
15
ENE
15
ENE
15
NE
15
NNE
Wind State
cross-on
cross-on
cross-on
on
cross-on
on
on
on
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross
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
4:45AM1.69m
5:10PM1.88m
5:37AM2.10m
6:16PM2.23m
6:55AM2.37m
7:50PM2.36m
rain showers
light rain
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
light rain
rain showers
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<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
2
1
Temp °C
17
16
17
17
17
17
15
15
15
15
14
15
15
15
14
15
15
15
17
18
18
18
16
Feels °C
12
11
11
11
12
12
12
12
12
12
10
11
10
10
11
13
13
13
14
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