St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 6 pm 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
17.9°C
1.1° 

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 24 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 7PM (local time) - 5ft (1.5m), 7s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 7PM (local time) - 10ft (3.0m), 8s period, W swell with 1,046 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 4PM (local time) - 2ft (0.6m), 10s period with WNW 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 25) at 4PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.5m 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 3.0m 8s and forecast to arrive on Friday (Aug 28) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Tuesday (Aug 25) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Tue 25th Aug)2ft (0.6m) 10s
Best Surf 7PM (Thu 27th Aug)5ft (1.5m) 7s
Most Powerful 7PM (Fri 28th Aug)10ft (3.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s coming up for St Agnes over the next couple of weeks.

To be honest, it’s a tough outlook for a long stretch. We’ve got a run of days with weak, choppy, or onshore junk, and most of the time the conditions just aren’t worth suiting up for. The first session that even gets a nod is Tuesday afternoon, August 25th, but it’s only a tiny 2ft swell from the WNW with a short 10-second period and light cross-off wind. The combined energy is weak (110) and the wave comment says it’s “surfable but very ordinary.” That’s not exactly a pump-up.

The water temperature is sitting at 64°, which is a touch warmer than normal for this time of year, but that’s about the only thing that’s slightly above average in this forecast.

We then hit a long, bleak spell. From Wednesday the 26th right through to Friday, September 4th, the forecast is dominated by poor surf conditions, with scores of 0 or 1 out of 10. The swell does bump up a bit—Friday the 28th has 6ft to 8ft from the west, but it’s cross-onshore and choppy, and the energy jumps (333 to 962) but it’s all messy. There’s a risk of thunderstorms on Saturday the 29th with onshore wind. This whole period is a write-off for a decent wave.

For kite surfers, the stretch from Friday the 28th through to Wednesday, September 2nd sees significant swell (5ft to 8ft) with strong cross-shore or cross-onshore winds—15 to 28 mph. That setup looks far more interesting for kite surfing than paddle surfing. The energy readings here are moderate to strong (333 up to 1063), but the wind and chop make it a paddler’s nightmare.

Now, finally, we get a glimpse of hope, but you have to wait over a week. On Saturday, September 5th, a solid 10ft west swell rolls in with a 10 to 11-second period. The combined energy is very strong (1804 to 1951), but it’s cross-onshore wind and described as “marginal surf forecast or questionable tide conditions.” It’s only scoring a 3 out of 10 for the morning, so it’s not a standout, just a slight uptick.

The real standout, and the only one I can genuinely recommend, is Sunday, September 6th. That morning, we’ve got a 7ft west swell (10-second period) with a clean, moderate offshore wind from the SSE. The combined energy is strong (880), and the forecast says “expect very good surf conditions.” That’s your session. The swell is a bit big for beginners, but for intermediates and above, that offshore wind on a west swell at St Agnes is what you’re waiting for. The afternoon gets wrecked by strong 25 mph offshore winds (SE) that are clean but hard to paddle into, so stick to the morning.

Following that, Monday, September 7th brings a massive 15ft to 25ft west swell with extremely long period (11 to 17 seconds) and insane energy (4728 to 32188), but it’s onshore with strong wind so it’s blowing out. That’s for experts only, and honestly, it’s probably too big and messy even for them. Tuesday, September 8th sees a 12ft swell dropping to 8ft, with a very long 13-second period, and gentle cross-off wind. The Tuesday afternoon session is called “excellent for experienced surfers” with a score of 4 out of 10. That’s worth a look if you’ve got the skills and you’re keen for a big, long-period groundswell. Keep in mind, that long period stuff tends to break a bit straight on a beach break, but at St Agnes it can still offer some nice corners.

Bottom line: the first week is a total loss. Hold out for Sunday, September 6th in the morning—that’s your best bet, by far.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 16°C on Mon night). Winds decreasing (fresh winds from the E on Mon afternoon, calm by Tue afternoon).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Fri night. Warm (max 20°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Thu night, strong winds from the SSW by Sun morning).

Mon
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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
1
1
1
0
0
0
1
1
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)
0.3
SW
13
0.3
WNW
11
0.5
WNW
10
0.6
WNW
10
0.6
W
9
0.6
W
8
0.5
W
8
0.4
W
8
0.9
SSW
6
1.3
SSW
8
1.5
SW
7
1.7
W
7
2.5
W
8
2.2
W
8
1
WNW
6
1
SSW
8
1.4
SW
8
1.4
SW
8
1.3
WSW
7
0.9
W
8
Wave Graph
Metric surfscale
Energy kJ
28
24
57
75
59
49
31
18
45
191
195
248
962
573
75
113
215
235
183
103
Wind (km/h)
30
E
25
E
20
E
10
E
5
S
5
SSE
10
SE
30
ESE
20
SW
10
S
5
SE
10
W
25
W
20
WSW
25
SW
25
W
20
SW
30
SSW
35
SW
35
WSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
cross-on
cross-on
cross
cross-off
cross
cross-off
cross-off
cross-off
cross
High Tide
4:18AM4.77m
4:39PM5.13m
4:59AM5.18m
5:16PM5.57m
5:34AM5.56m
5:50PM5.96m
6:07AM5.90m
6:22PM6.27m
6:39AM6.16m
6:54PM6.48m
7:11AM6.32m
7:27PM6.57m
Low Tide
10:19PM1.81m
10:37AM1.64m
11:02PM1.39m
11:16AM1.23m
11:39PM0.98m
11:50AM0.85m
00:12AM0.64m
12:23PM0.55m
00:44AM0.38m
12:55PM0.34m
1:15AM0.22m
1:27PM0.24m
1:47AM0.20m
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
rain showers
part cloud
part cloud
clear
clear
clear
rain showers
thunderstorm
cloud
part cloud
cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
6:24
6:26
6:28
6:28
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:21
8:19
8:16
8:15
8:13
8:09
 mm
3
1
1
1
2
Temp °C
20
18
20
20
17
21
21
18
19
20
16
19
19
17
19
20
18
19
19
16
Feels °C
14
14
17
19
18
21
20
15
18
18
15
16
16
15
17
16
14
13
13
11
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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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