St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 12 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.2°C
1.3° 

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 23 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 10PM (local time) - 5ft (1.5m), 8s period, SSW swell with offshore winds.
  • Most powerful swell: Friday 28 Aug, 10PM (local time) - 10ft (3.0m), 9s period, W swell with 1,541 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 10AM (local time) - 1.5ft (0.4m), 14s period with SW 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 Sunday (Aug 23) at 10AM. The primary swell is predicted to be 0.4m and 14s period. 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 9s and forecast to arrive on Friday (Aug 28) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Tuesday (Aug 25) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 23rd Aug)1.5ft (0.4m) 14s
Best Surf10PM (Thu 27th Aug)5ft (1.5m) 8s
Most Powerful10PM (Fri 28th Aug)10ft (3.0m) 9s

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


The Lowdown

Right then, let’s have a look at what’s on offer for St Agnes over the next couple of weeks. To be fair, it’s a quiet start. The first real chance of anything rideable isn’t until early next week, with a real lull in the surf for several days before that.

We finally see a small pulse of swell arriving on the Monday morning of the 31st of August. It’s only 3 ft from the WSW, with a short 8-second period. Combined energy is only moderate at 154. Winds are light and cross-off, so it’ll be clean, but it’s tiny and weak. Later that afternoon is a nice little window with a glassy 2 ft from the west, thanks to a complete drop in the wind. You’ll get a few little runners but don’t expect much.

The first proper standout comes on Thursday the 3rd of September. The morning session is where it's at. We’ve got a clean 5 ft swell from the west, with a 7-second period. That combined swell energy hits 319, so there’s some moderate push behind it. What makes this special is the light southerly breeze, giving you clean, offshore conditions. It’s not giant, but for quality and shape, this is your pick.

Friday morning the 4th of September is also worth a mention. Another 5 ft from the west, but the period stretches to 9 seconds which will give you a bit more power and shape. Combined energy sits at 454. The gentle cross-off breeze from the south keeps things clean. This is another solid session.

After that, it gets a bit messy. There’s a lot of wind and choppy conditions through the weekend and into the following week. The water temp at St Agnes is about average for the time of year.

So, for the standout, I’m calling Thursday morning, the 3rd of September. The clean, offshore wind and that moderate, consistent swell will give you the best waves.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue morning. Warm (max 21°C on Tue morning, min 15°C on Sat night). Winds increasing (light winds from the E on Sun morning, fresh winds from the E by Sun night).

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Wed afternoon. Warm (max 22°C on Wed morning, min 15°C on Thu night). Winds decreasing (fresh winds from the SSE on Wed night, calm by Thu night).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
1
1
0
1
1
0
1
2
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
SW
14
0.4
SW
14
0.3
SW
14
0.3
SW
14
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
1.7
SSW
7
1.7
SSW
8
1.9
SSW
8
1.3
WSW
9
1.4
S
10
1.3
SSW
8
3
W
9
2.3
W
7
2.1
W
7
2
W
7
Wave Graph
Metric surfscale
Energy kJ
51
54
38
31
28
25
58
75
59
50
32
286
352
488
237
377
217
1312
569
449
422
Wind (km/h)
10
E
15
ENE
15
ENE
35
E
30
E
20
ENE
30
E
25
SE
10
SSE
20
SSE
25
SSE
30
SE
25
SSW
25
SSW
15
SE
10
NW
15
W
35
WNW
35
W
40
W
30
W
Wind State
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
2:47PM4.35m
3:25AM4.40m
3:52PM4.70m
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
Low Tide
8:32AM2.35m
9:20PM2.18m
9:47AM2.05m
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
clear
clear
part cloud
cloud
part cloud
part cloud
rain showers
part cloud
part cloud
cloud
rain showers
part cloud
thunderstorm
thunderstorm
clear
rain showers
part cloud
rain showers
rain showers
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:22
6:24
6:26
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:22
8:21
8:19
8:16
8:15
8:13
 mm
1
2
3
1
1
6
1
Temp °C
19
20
17
19
20
19
21
20
17
22
22
17
19
19
15
17
18
16
18
18
17
Feels °C
16
17
15
13
14
14
16
16
16
19
18
13
15
14
13
16
16
11
12
11
12
  • 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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