St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 12 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.5° C
1.6° 

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 6 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 11s period, W swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 4AM (local time) - 4.5ft (1.3m), 11s period, W swell with 388 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 0.6m 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 1.3m 11s and forecast to arrive on Thursday (Aug 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Thursday (Aug 06) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 12th Aug)2ft (0.6m) 11s
Best Surf 1AM (Wed 12th Aug)2ft (0.6m) 11s
Most Powerful 4AM (Thu 13th Aug)4.5ft (1.3m) 11s

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


The Lowdown

Right, grab a coffee, 'cause I’ve had a proper look at the charts for St Agnes, and to be brutally honest, it’s a pretty grim stretch comin' up. There’s a massive, frustrating gap here with absolutely nothing worth paddling out for. From Thursday the 6th of August, all the way through to the morning of Tuesday the 18th of August, it’s a write-off. We’re talking nearly two weeks of tiny, weak, or just plain messy slop, with a lot of onshore and cross-onshore wind. The swell is tiny, often under 2ft, and the wind is just killing any chance of a decent wave. It’s the kind of run that makes you want to just wax the board and look at it.

Now, after that long, dry spell, we finally get a tiny glimmer on Tuesday morning, the 18th of August. The water temp is about 65°, which is a touch warmer than normal for this time of year, so the wettie will feel alright. We’re looking at a tiny 2ft swell from the west, and the wind goes dead glassy – calm, with a light breeze from the south. The energy is really weak, only about 67, so it’s proper small and gutless. The wave comment says "surfable waves but very ordinary conditions," which is being generous. It’s a 1 out of 10, so manage your expectations big time. If you’re desperate for a float and a few ankle-biters, you might get a couple of knee-high rolls, but it’s not worth a special trip. The direction is western, and the optimum swell for St Agnes is from the WSW, so it’s close enough, but the size is just too tiny to do much with.

After that tease, it’s right back to rubbish. The wind howls from the 19th onwards, with a fresh to strong breeze from the WSW, and the swell stays weak and messy. There’s a brief spike of windswell on the 21st of August, hitting 5ft, but it’s from the north with a short, awful period of 5 seconds and a stiff cross-onshore wind. That’s just a messy, lumpy, choppy mess. Honestly, for a beach setup like this, with that much wind and poor quality, it looks more interesting for a kite surfer than a paddler. The only real takeaway is that Tuesday morning glass-off, and even that’s a stretch.

Stay patient, gang. The ocean will turn around eventually.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Tue morning, min 18°C on Sun night). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
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
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
1
WNW
6
0.7
W
6
0.3
W
10
0.3
W
9
0.3
W
9
0.3
W
9
0.3
WNW
10
0.4
WNW
10
0.4
WNW
9
0.3
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
WNW
8
0.4
WNW
8
0.5
W
8
0.4
WNW
8
0.4
WNW
7
0.6
W
11
1.1
W
10
1.2
WSW
9
1.1
WSW
9
Wave Graph
Metric surfscale
Energy kJ
77
30
17
15
15
15
22
30
32
15
25
26
23
22
33
19
18
84
226
238
202
Wind (km/h)
15
NW
15
NW
10
NW
10
NW
15
NW
10
NE
10
SE
0
NW
5
NNE
15
N
20
NNW
15
NNW
15
NW
15
NW
10
NNW
5
WNW
10
NW
5
WSW
10
W
15
W
10
WNW
Wind State
on
cross-on
cross-on
cross-on
on
cross-on
cross-off
glassy
cross-on
cross-on
on
on
cross-on
cross-on
on
glassy
cross-on
glassy
cross
cross-on
cross-on
High Tide
11:00AM5.27m
11:30PM5.22m
12:05PM5.02m
00:44AM4.96m
1:26PM4.93m
2:09AM4.95m
2:49PM5.12m
3:28AM5.21m
4:00PM5.54m
4:32AM5.62m
4:57PM6.03m
5:25AM6.02m
5:47PM6.47m
Low Tide
5:17PM1.42m
5:53AM1.54m
6:29PM1.65m
7:13AM1.71m
7:59PM1.68m
8:42AM1.63m
9:25PM1.41m
9:58AM1.29m
10:34PM0.96m
10:59AM0.85m
11:30PM0.50m
11:49AM0.44m
00:17AM0.14m
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:56
5:58
5:58
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:57
8:54
8:52
8:52
8:50
8:47
8:45
 mm
Temp °C
17
17
16
18
18
16
21
22
17
21
20
18
21
21
18
22
22
19
23
23
20
Feels °C
14
14
15
16
15
15
19
22
16
18
16
17
19
19
17
21
21
19
21
21
21
  • 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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