St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes 48 hour detailed Surf Forecast

Issued: 12 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.2° C
1.3° 

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 (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 3.5ft (1.1m), 9s period with W swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 3.5ft (1.0m), 8s period with W swell.
  • Evening surf: Evening surf (21 Aug, local time) - 2.5ft (0.7m), 8s period with W swell.

The current surf forecast for St Agnes at 3PM is: 1.0m 8s primary swell from a West direction and 0.2m 13s secondary swell from a South-southwest direction, 0.8m 5s secondary swell from a North direction (forecast issued at 12:00pm August 21). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (21 Aug)3.5ft (1.1m)9s
Afternoon (21 Aug)3.5ft (1.0m)8s
Evening (21 Aug)2.5ft (0.7m)8s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sun afternoon, min 14°C on Fri night). Winds increasing (light winds from the ENE on Fri night, fresh winds from the E by Sun night).

Fri
21
Saturday
22
Sunday
23
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
1
0
0
0
0
0
0
0
0
1
1
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)
1
W
9
1
W
8
0.9
WNW
8
0.8
WNW
8
0.7
W
8
0.3
SW
16
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
0.4
SW
15
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.4
SW
13
0.4
WSW
12
0.4
SW
14
0.3
SW
14
Wave Graph
Metric surfscale
Energy kJ
150
140
112
69
66
39
61
67
65
25
26
25
55
54
54
52
51
44
56
51
41
Wind (km/h)
25
NNW
25
NNW
25
NNW
20
NNW
15
NNW
15
N
15
NE
10
ENE
15
E
15
NE
20
NNE
20
NNE
15
NNE
20
NE
15
NE
10
NE
10
ENE
10
ENE
15
E
15
ENE
10
ENE
Wind State
on
on
on
on
on
cross-on
cross
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross
High Tide
11:51AM4.44m
00:32AM4.24m
1:16PM4.23m
2:06AM4.17m
2:47PM4.35m
Low Tide
6:16PM2.23m
6:55AM2.37m
7:50PM2.36m
8:32AM2.35m
9:20PM2.18m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:27
8:24
 mm
Temp °C
15
16
15
15
15
16
15
14
16
18
18
17
17
16
15
15
17
19
20
19
17
Feels °C
10
11
10
10
12
14
12
12
13
15
14
13
14
13
12
12
14
16
17
16
15
  • 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