St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 12 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.2°C
2.0° 

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 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 7AM (local time) - 3ft (0.9m), 8s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 10 Sep, 7PM (local time) - 8ft (2.4m), 9s period, W swell with 961 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 7AM (local time) - 3ft (0.9m), 8s period with WSW 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 Thursday (Sep 10) at 7AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at St Agnes in the next 16 days are 2.4m 9s and forecast to arrive on Thursday (Sep 10) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Sep 10) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 10th Sep)3ft (0.9m) 8s
Best Surf 7AM (Thu 10th Sep)3ft (0.9m) 8s
Most Powerful 7PM (Thu 10th Sep)8ft (2.4m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what St Agnes has got cooking for us.

Right off the bat, I gotta be straight with you – it’s a rough start. We’re looking at a real flat spell followed by a week of poor conditions. The first recommendation isn’t until Thursday the 10th of September, and even then, it’s a tough watch. The outlook doesn’t really get its act together until the following week, so we’re looking at a gap of about a week before anything feels worth paddling out for.

St Agnes is a fairly exposed spot, and for most of this stretch, the wind is going to be a problem. For that first week, we’ve got a lot of cross-off breezes, but the wave energy is just too weak to form anything decent. On Friday the 11th and Saturday the 12th, there are small swells around 4 ft to 6 ft from the W and WSW, but the wind is wrong, and the forecast notes are just calling it poor or marginal. It’s frustrating, because the combined swell energy on the 11th morning is only moderate (367), so you can feel there’s something there, but it’s not coming together.

The true standout, the one that looks like it could actually reward the patient surfer, is Tuesday the 22nd of September. The morning shows a solid 8 ft swell from the WNW, with a period of 11 seconds. That’s proper groundswell energy, and the combined energy reading is a massive 2889 – that’s very strong. It’s a cross-shore wind, so it’ll be lined up but a little choppy. The water temp feels about average for this time of year. This is a big one, but if you’re a beginner, that 8 ft is pushing the limit – this is one for the competent crew.

Another session that has some promise is Thursday the 24th of September. The morning shows a 4 ft swell from the WNW, but the period jumps to a massive 15 seconds – that’s very long period groundswell. Combined swell energy is a strong 874. That kind of period at a beach setup can be a bit straight and tricky, but with a gentle cross-shore breeze and some banks, there will be some clean, powerful lines. It’s a marginal call, but the potential is there for a few gems.

Overall, the first week and a half is a write-off with nothing clean and consistent. The real action, and the best bet, is that big WNW pulse on the 22nd. After that, there are a few windows of cleaner, longer-period swell toward the end of the period, but the wind is always a factor. Keep your eyes on that Tuesday the 22nd – it’s our best shot.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 19°C on Sat morning, min 14°C on Wed night). Winds decreasing (fresh winds from the SSW on Thu morning, light winds from the W by Fri afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Mon morning, min 15°C on Sun night). Winds increasing (light winds from the WSW on Sun night, fresh winds from the NW by Tue afternoon).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
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
2
1
0
1
0
0
1
0
0
1
0
0
1
1
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)
0.4
WSW
8
2.2
WSW
8
1.9
W
10
1.5
W
9
1.3
W
9
1.1
W
8
1.4
WSW
8
1.8
W
8
1.9
W
11
1.7
W
11
1.4
W
10
1.1
W
10
1
W
9
1.1
W
9
1.1
W
8
1.4
WNW
11
1.7
WNW
10
1.4
WNW
10
1.3
W
10
1.2
W
11
1.1
W
10
Wave Graph
Metric surfscale
Energy kJ
19
570
669
367
252
157
284
381
828
657
402
228
168
189
153
452
539
402
332
326
255
Wind (km/h)
25
SSW
30
SSW
15
WSW
10
NW
10
WNW
15
SW
25
SW
25
WSW
20
W
15
NW
15
NW
10
SW
15
SW
20
SW
15
SSE
20
SW
30
NW
30
NW
30
NNW
30
NW
20
NW
Wind State
cross-off
cross-off
cross
on
cross-on
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-on
on
on
on
cross-on
High Tide
5:12AM6.03m
5:31PM6.48m
5:53AM6.36m
6:11PM6.74m
6:31AM6.55m
6:48PM6.80m
7:07AM6.57m
7:24PM6.68m
7:41AM6.44m
7:59PM6.41m
8:15AM6.17m
8:33PM6.00m
8:49AM5.79m
9:08PM5.53m
Low Tide
11:34AM0.41m
11:59PM0.11m
12:14PM0.13m
00:37AM-0.05m
12:50PM0.01m
1:11AM-0.04m
1:25PM0.06m
1:44AM0.13m
1:58PM0.25m
2:16AM0.43m
2:30PM0.57m
2:47AM0.82m
3:03PM0.97m
3:19AM1.26m
cloud
light rain
rain showers
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
thunderstorm
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:50
6:52
6:54
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:46
7:44
7:42
7:39
7:37
7:36
7:32
 mm
1
1
3
Temp °C
17
17
18
18
18
16
19
18
18
17
17
18
20
20
18
19
17
16
14
14
15
Feels °C
13
12
16
16
17
16
15
15
16
16
16
18
19
19
18
17
12
11
8
9
11
  • 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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