St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 6 pm 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.4° C
1.5° 

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 7 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 4PM (local time) - 3ft (0.9m), 9s period, WSW swell with offshore winds.
  • Most powerful swell: Thursday 13 Aug, 4PM (local time) - 3.5ft (1.1m), 10s period, W swell with 239 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 12 Aug, 4PM (local time) - 3ft (0.9m), 9s 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 Wednesday (Aug 12) at 4PM. The primary swell is predicted to be 0.9m and 9s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at St Agnes in the next 16 days are 1.1m 10s and forecast to arrive on Thursday (Aug 13) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Tuesday (Aug 11) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Wed 12th Aug)3ft (0.9m) 9s
Best Surf 4PM (Wed 12th Aug)3ft (0.9m) 9s
Most Powerful 4PM (Thu 13th Aug)3.5ft (1.1m) 10s

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


The Lowdown

Right, let’s have a look at the next couple of weeks for St Agnes. To be honest, it’s a bit of a slow burner. The first week and a bit is pretty gutless, with tiny, weak waves and a lot of onshore junk. We’ve got a proper run of flatness and poor conditions from now until around the 12th. It’s not looking like a classic summer spell, that’s for sure.

The first real sign of life shows up on Wednesday the 12th. The swell bumps up a touch to 3ft from the west, but the wind is howling out of the southeast at 25 mph in the morning. It’s clean-ish, but it’s a strong breeze. The afternoon is better, with the wind easing to a moderate 12 mph offshore from the SSE, and the swell nudging up to 3ft from the WSW. The energy is still weak though, sitting around 142. It’s surfable, but you’d be scratching for a half-decent one, not a standout.

The swell builds a little through the 13th and 14th, with the 13th afternoon seeing 4ft from the west and energy up to 244. But the wind swings onshore and it just gets messy. Thursday the 14th is all onshore wind, 16 mph from the north, and 3ft of wind-blown slop. Not worth getting wet for, really.

We get a bit of a lull again on the 15th and 16th, with small, choppy surf and poor winds. Then things start to get a bit more interesting. On the 17th, we see 5ft from the WNW and the energy jumps to 348. But again, the wind is on it, cross-onshore, making it lumpy and uninviting. It’s a tease, more than anything.

The real push of swell comes through on the 19th. The swell jumps to almost 7ft from the west, with energy climbing to 531. That’s a solid, powerful swell, but the wind is all wrong, howling cross-onshore. It’s going to be a total mess, more like a washing machine. For a beach setup like this, that’s more of a kite-surfing day than a paddle-surfing day.

Now, the one to circle on the calendar is Thursday the 20th. The swell is still a decent 6ft from the west, but the magic happens in the morning. The wind drops to a mere 3 mph, a slight air from the ESE, which is cross-off. The energy is strong at 426, and it’s the only time in the whole window where you get a decent-sized, clean, glassy morning. This is the standout. It’s got size, it’s got power, and the wind will put a nice line on it. This is going to be the best session of the fortnight. The water is a touch warmer than normal for the time of year, sitting at 65°, so it’s comfortable in a springy.

The day after, the 21st, is still workable, with 5ft from the west and a moderate cross-off breeze, but the magic is gone. It’s clean, but a bit more ordinary. The swell then fades through the 22nd, dropping back to 4ft, with the wind picking up again. That first week of waiting is a drag, but that Thursday morning session looks worth the patience. It’s a long way off, so treat it as promising, but not locked in.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Wed afternoon, min 18°C on Tue night). Winds decreasing (strong winds from the ESE on Tue night, calm by Wed night).

Fri
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
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
1
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)
0.3
W
9
0.2
W
9
0.3
WNW
9
0.4
WNW
10
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.4
WNW
8
0.3
WNW
7
0.6
W
11
0.8
W
10
0.9
WSW
9
1
W
9
0.6
W
11
1.1
W
10
1.1
W
10
Wave Graph
Metric surfscale
Energy kJ
15
6
17
31
28
31
30
26
24
22
22
19
11
85
125
141
158
92
239
223
Wind (km/h)
15
NNW
10
NE
15
ESE
10
ESE
5
N
15
NNW
15
NW
10
NW
10
N
20
NNE
10
NE
25
ESE
35
ESE
35
ESE
40
SE
20
SSE
10
NW
15
NW
20
NW
15
NW
Wind State
on
cross
cross-off
cross-off
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
off
on
cross-on
on
cross-on
High Tide
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
6:11AM6.33m
6:31PM6.76m
Low Tide
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
12:34PM0.15m
1:00AM-0.06m
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
6:01
6:01
6:03
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:54
8:52
8:52
8:50
8:47
8:45
8:44
 mm
Temp °C
18
15
22
22
18
20
20
18
21
20
21
22
22
20
23
24
19
20
20
18
Feels °C
15
13
19
20
17
18
18
18
19
17
19
17
15
15
17
20
20
20
19
16
  • 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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