St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 6 pm 08 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 8 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 11s period, W swell with cross-offshore winds.
  • Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4ft (1.2m), 11s period, W swell with 319 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.5m), 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 Tuesday (Aug 11) at 10PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m 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 11s and forecast to arrive on Thursday (Aug 13) at 10AM. 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 7s period and expected on Wednesday (Aug 12) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 11th Aug)1.5ft (0.5m) 11s
Best Surf10PM (Tue 11th Aug)1.5ft (0.5m) 11s
Most Powerful10AM (Thu 13th Aug)4ft (1.2m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s dig into what St Agnes has in store for us over the next couple of weeks. Gotta be honest – it’s a quiet stretch overall. A lot of waiting before we get anything worth paddling out for.

Things start off tiny. From Saturday the 8th right through until around Tuesday the 12th, it’s all small windswell with mostly cross or onshore breezes. The energy is weak – as low as 40 on that first Saturday. Water temp is about 65°, which is a touch warmer than normal for this time of year, so at least the waiting won’t be a cold one.

We finally see a glimmer on Wednesday the 12th afternoon. A west swell at 3 ft, with a period of 9 seconds and a light offshore breeze from the east. Energy climbs to 136, and conditions turn clean. It’s nothing special, just surfable and very ordinary, but it’s something. Thursday the 13th morning pushes up to 4 ft from the west with an 11-second period, energy hitting 322 – but the wind swings onshore from the north-northwest, chopping it all up. Frustrating.

The real highlight, and I mean the only one that gets me excited, lands on Wednesday the 19th. That morning we get a solid pulse: 6 ft out of the west, with a period of 7 seconds. Combined energy is a strong 300, and we’ve got a gentle offshore breeze from the northwest. Clean, powerful, and a bit much for beginners – but for the experienced surfers, that’s your morning. Thursday the 20th stays big at 5 ft from the west-northwest, but the wind is more onshore. Wednesday is your window.

After that, it fades back into messy conditions. Friday the 21st and Saturday the 22nd are mostly cross-onshore and lumpy. Then on Sunday the 23rd, we get a final clean moment: a gentle southeast offshore breeze with 2 ft of west swell. Small, but glassy and clean if you want a longboard cruise.

So here’s the take: a long, dry run of over a week, then one solid morning on Wednesday the 19th. That’s the standout. Keep an eye on that day, and if the wind plays ball, you’ll have a proper session.

Stay thirsty,
Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Tue morning, min 16°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Wed afternoon, min 18°C on Tue night). Wind will be generally light.

Sat
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
1
0
1
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)
0.4
WNW
10
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.8
NW
5
0.4
WNW
8
0.5
W
8
0.4
WNW
8
0.2
W
13
0.7
W
11
0.9
W
10
0.9
W
9
1
W
9
1.2
W
11
1.2
W
10
1
W
10
0.9
W
9
0.8
W
8
1
W
8
Wave Graph
Metric surfscale
Energy kJ
31
28
26
25
26
34
22
33
20
13
116
158
136
169
319
282
184
126
89
132
Wind (km/h)
15
ESE
5
ESE
15
NW
20
WNW
15
WNW
15
N
20
N
10
NE
25
ESE
25
ESE
10
ESE
10
ENE
10
E
10
NNE
20
NNW
20
NW
10
W
15
W
20
WNW
20
WNW
Wind State
cross-off
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross
cross-off
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
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
6:54AM6.50m
7:13PM6.86m
Low Tide
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
1:15PM0.01m
1:40AM-0.08m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:01
6:01
6:03
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:52
8:52
8:50
8:47
8:45
8:44
8:43
 mm
Temp °C
21
18
20
20
17
17
18
19
22
22
20
25
26
22
21
21
19
20
19
18
Feels °C
19
18
18
18
16
16
15
18
17
17
17
22
23
20
18
19
19
20
17
17
  • Map Icons:
  • Break
  • 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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