St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 12 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.6° C
1.7° 

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


St Agnes surf forecast from 10 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 11s period, W swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 11s period, W swell with 319 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 11s period with W swell.

Best Forecast Surf Conditions for St Agnes this week:

The surf forecast for St Agnes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 10PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at St Agnes in the next 16 days are 1.2m 11s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Wednesday (Aug 12) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 11th Aug)1.5ft (0.5m) 11s
Best Surf10PM (Tue 11th Aug)1.5ft (0.5m) 11s
Most Powerful10AM (Thu 13th Aug)4ft (1.2m) 11s

Table - best surf conditions forecast for St Agnes over the next 16 days.


The Lowdown

Alright folks, Rusty here, with a look at what we’ve got on the horizon.

To be straight with you, the next couple of weeks at St Agnes are looking pretty flat and frustrating. There’s a real drought of decent surf coming up. We’re talking from now right through to Friday the 21st of August, the reports are all “poor surf conditions” with scores you wouldn’t want to post on the board. That’s over a week with nothing worth paddling out for.

The swell that does show is weak, with combined energies mostly under 200 (moderate at best). There’s often onshore or cross-onshore wind messing it up. Even when we get a bit of height, like around 4ft on the morning of Thursday the 13th, the wind is straight onshore and it’s just a lumpy mess with moderate wave energy (324).

The first glimmer of anything worthwhile doesn’t come until the afternoon of Friday the 21st. It’s only 2ft from the west at a 10-second period, but the wind swings to a light cross-off from the southeast, cleaning it right up. It’s a small, clean wave with moderate energy (168) – more of a longboard fun-size than anything to get excited about.

Then Saturday the 22nd looks similar. A little 2ft west swell in the morning with a clean cross-off breeze (ESE), and again in the afternoon with a light offshore from the SSE and clean conditions. Energy is low (103 and 62), but it’d be glassy and pretty. For a patient surfer on a log, these are the only windows in the whole 16-day run.

Looking way down the track to Tuesday the 25th of August, we see a bump in size – 5ft from the west-southwest with an 8-second period and moderate energy (362). The wind is light and cross-shore from the northeast. It’s still only rated as marginal, and it’s so far out I’d take that prediction with a pinch of salt, but it’s something to keep an eye on.

Overall, it’s a tough run. St Agnes is fairly exposed to the west-southwest, which is fine, but this pattern just isn’t delivering. Hang tight, the forecast can always change.

- Rusty

Short Range Forecast

Mostly dry. Warm (max 25°C on Wed morning, min 16°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 16°C on Sat afternoon). Mainly fresh winds.

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
NW
5
0.4
WNW
8
0.5
W
8
0.4
WNW
8
0.4
WNW
7
0.6
W
11
0.8
W
10
0.9
W
9
1
W
9
1.2
W
11
1.1
W
10
1
W
10
1.2
W
9
1.2
WNW
9
1
W
8
0.9
W
8
0.8
W
8
0.7
W
8
0.8
N
5
0.8
N
6
0.9
N
6
Wave Graph
Metric surfscale
Energy kJ
41
22
33
19
18
85
125
136
180
319
239
181
230
232
135
100
72
55
33
39
50
Wind (km/h)
15
N
20
N
10
NE
20
SE
20
SE
10
ESE
10
NNE
15
N
15
N
20
N
20
NW
15
NW
20
NNW
20
NNW
15
N
25
N
30
N
30
N
25
NNE
25
NNW
15
NW
Wind State
cross-on
cross-on
cross-on
off
cross-off
cross-off
cross-on
cross-on
cross-on
on
on
cross-on
on
on
on
cross-on
on
cross-on
cross-on
on
on
High Tide
4:00PM5.54m
4:32AM5.62m
4:57PM6.03m
5:25AM6.02m
5:47PM6.47m
6:11AM6.33m
6:31PM6.76m
6:54AM6.50m
7:13PM6.86m
7:34AM6.51m
7:53PM6.76m
8:13AM6.37m
8:31PM6.49m
Low Tide
9:58AM1.29m
10:34PM0.96m
10:59AM0.85m
11:30PM0.50m
11:49AM0.44m
00:17AM0.14m
12:34PM0.15m
1:00AM-0.06m
1:15PM0.01m
1:40AM-0.08m
1:54PM0.05m
2:18AM0.07m
2:31PM0.25m
2:54AM0.38m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:01
6:03
6:05
6:07
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:50
8:47
8:45
8:44
8:43
8:40
8:38
 mm
Temp °C
17
18
18
23
23
20
25
25
20
21
21
19
18
17
17
18
17
16
16
16
16
Feels °C
15
15
16
21
20
19
22
22
19
20
20
19
16
14
15
14
12
11
12
12
14
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the St Agnes Surf forecast

The above surf forecast table for St Agnes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at St Agnes can be found by selecting the local surf guide option on the grey menu. Our St Agnes surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (St Agnes) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for St Agnes may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

St Agnes is 13 km (8 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.

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