St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 12 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.5° 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 6 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 4AM (local time) - 4ft (1.2m), 10s period, W swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 4AM (local time) - 4ft (1.2m), 10s period, W swell with 284 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 10s 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 4AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.2m and 7s. 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 1.2m 10s and forecast to arrive on Thursday (Aug 13) at 4AM. Winds are predicted to be glassy 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 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 12th Aug)2.5ft (0.7m) 10s
Best Surf 4AM (Thu 13th Aug)4ft (1.2m) 10s
Most Powerful 4AM (Thu 13th Aug)4ft (1.2m) 10s

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 over the next couple of weeks. I'll be straight with you—it's a tough start.

We're looking at a real dry spell kicking things off. From Thursday the 6th of August right through until the morning of Wednesday the 12th, there's barely a ripple worth mentioning. The sea is flat, small, and messy. You’ll be sitting on your board watching the horizon do nothing. It’s a proper gap of about six days with nothing to offer, so don't even bother waxing up.

Things finally start to stir on the morning of Wednesday the 12th. We get a pulse of moderate wave energy (226) pushing in from the west with a 3.3ft swell. The period is a solid 10 seconds, so there's a bit of shape to it, but the wind is a light cross-offshore, keeping it reasonably clean. It’s surfable, but ordinary. The afternoon sees the wind swing and the quality drops off.

Now, the standout window. The morning of Thursday the 13th of August is your best bet across the whole outlook. We’ve got a 3.6ft west swell with a 10-second period and the wind is glassy. Glassy! That’s a major positive. The combined energy is moderate (235), and the offshore wind direction is ideal for St Agnes. It’s a fairly consistent break, so you should get some sets coming through, but keep in mind it gets crowded here often. The water temperature is about average for the time of year, so no nasty surprises.

After that glassy morning, the quality tails off. Friday the 14th is a write-off with onshore winds. Saturday the 15th sees a bit more size—3.9ft to 4.3ft from the west—but the wind is cross-onshore and choppy, so it’s blown out.

Sunday the 16th of August offers a glimmer in the morning. We’ve got a 4.3ft swell from the west-southwest, 8-second period, and a cross-offshore breeze keeping it clean. The combined energy is moderate (222). It’s surfable, but it’s not the glassy perfection of Thursday.

The second week is a bit of a mixed bag. Monday the 17th gets blown out by a fresh breeze, and Tuesday the 18th is small and weak. Wednesday the 19th afternoon sees a pulse of swell from the west-northwest at 3.3ft, 10-second period, with moderate energy (262) and a clean cross-offshore wind, but it's a one-off before the onshore winds return on Thursday the 20th.

So, to wrap it up: the first week is a dud, then you get a couple of windows. The absolute best is the morning of Thursday the 13th. If you can only get one session in, make it that one. The Sunday morning on the 16th is your next best shot. After that, it’s a bit of a gamble.

Stay salty.

Short Range Forecast

Mostly dry. Warm (max 21°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 Sun morning, min 17°C on Sat 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
0
1
0
1
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
0.2
WNW
9
0.4
WNW
9
0.4
WNW
9
0.3
WNW
9
0.4
WNW
9
0.4
WNW
9
0.5
WNW
8
0.4
WNW
8
0.6
WNW
8
0.4
WNW
8
0.3
WNW
8
0.6
W
11
1.1
W
10
1.1
W
9
1.1
W
10
Wave Graph
Metric surfscale
Energy kJ
77
30
17
15
15
15
8
29
28
16
26
26
39
22
44
20
11
82
226
203
240
Wind (km/h)
15
NW
15
NW
5
WNW
10
NW
15
NW
10
NNE
5
ENE
10
NNW
10
NNE
15
NNE
20
N
15
N
20
N
20
NNW
15
NNW
15
NNW
15
WNW
10
WSW
10
SW
20
WSW
5
NW
Wind State
on
cross-on
cross-on
cross-on
on
cross-on
cross-off
on
cross-on
cross-on
on
cross-on
on
on
on
on
cross-on
cross
cross-off
cross
glassy
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
4:52AM1.25m
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
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
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>
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
20
21
17
22
21
18
20
21
18
21
21
19
23
23
20
Feels °C
14
14
15
16
15
15
18
19
15
18
17
16
17
17
17
19
19
18
22
22
22
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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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