St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 6 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
19.0° C
2.0° 

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 12 Aug 2026:

  • Best quality surf: Wednesday 12 Aug, 1PM (local time) - 2.5ft (0.8m), 10s period, W swell with 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★+): Wednesday 12 Aug, 1PM (local time) - 2.5ft (0.8m), 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 1PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.1m and 12s. 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 1.2m 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 0.8m 5s period and expected on Wednesday (Aug 12) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Wed 12th Aug)2.5ft (0.8m) 10s
Best Surf 1PM (Wed 12th Aug)2.5ft (0.8m) 10s
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 have a look at what St Agnes has in store for us over the next couple of weeks.

To be brutally honest, this is a tough stretch. The next 16 days are looking pretty grim for St Agnes, with a whole lot of poor surf conditions and no real standouts at all. We’ve got a solid gap right from the start, with nothing worth paddling out for until we get into the second week.

The only flicker of something surfable comes on the morning of Wednesday the 12th. We’ve got a clean 3 ft wave from the west, with a period of 10 seconds, and the combined swell energy is moderate at 127. The water is sitting at 66°F, which is a touch warmer than normal for this time of year. The wind is an east-southeast cross-offshore breeze at 12 mph, which is keeping things clean. It’s surfable, but the conditions are very ordinary. It’s a 'meh' kind of day. The afternoon sees a little more size at 3 ft from the west, with a gentle 9 mph offshore from the south-southeast making it clean, but it’s still nothing to write home about. Honestly, it’s barely a session.

After that, it’s a long dry spell. We’re looking at days of onshore, cross-onshore, and strong winds, with the swell staying small and messy. Thursday the 13th is a write-off with onshore winds, and it just keeps going. The swell never really gets above 5 ft, and when it does on Tuesday the 18th, it’s with a fresh cross-onshore wind that’s going to make it a lumpy, choppy mess. That stretch of poor conditions runs right through until the 21st.

We do get a brief window of offshore winds on Friday the 21st of August, with the southeast wind blowing at 19 mph, but the swell is tiny at 2 ft. The energy is weak (84). It’s clean, but you’ll be scratching for scraps. The afternoon gets even stronger at 25 mph offshore, making it clean but very hard to paddle into. Not a real goer.

The rest of the forecast is more of the same: small, messy, and onshore or cross-onshore. There’s a final flash on the morning of Wednesday the 26th, with a 2 ft west swell and a 16 mph offshore from the south-southeast, giving clean conditions. But again, the energy is weak (85), and it’s still just "surfable but very ordinary."

For a spot that’s fairly exposed and fairly consistent, this is a real bummer. It’s one of those stretches where the forecasts can change, but right now, there’s no good reason to get excited. If you’re a kite surfer, some of those windy afternoons with cross-onshore winds might look interesting, but for a paddle surfer, I’d give it a miss.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Wed afternoon, min 17°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Very mild (max 19°C on Mon afternoon, min 15°C on Sat afternoon). Mainly fresh winds.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
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
1
1
0
0
0
0
0
0
0
0
0
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)
0.8
W
10
0.9
W
9
1
W
9
1.2
W
11
1.2
W
10
1
W
10
1
W
9
1.2
W
9
1
W
8
1
W
8
0.9
W
8
1.3
N
6
1
N
5
1
N
5
1.1
N
5
0.3
W
7
0.2
W
9
0.4
W
8
1.4
W
6
1.6
W
7
1.2
W
7
Wave Graph
Metric surfscale
Energy kJ
125
139
180
319
284
181
159
220
132
124
95
100
58
51
62
8
8
21
148
247
131
Wind (km/h)
20
ESE
15
SSE
5
N
15
NNW
20
NW
15
WNW
20
WNW
20
NW
15
NNE
30
N
30
N
25
N
25
NNE
25
NNW
25
N
10
N
10
WNW
25
WSW
30
WSW
35
WNW
20
NW
Wind State
cross-off
off
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-off
cross
cross-on
cross-on
High Tide
5:47PM6.47m
6:11AM6.33m
6:31PM6.76m
6:54AM6.50m
7:13PM6.86m
7:34AM6.51m
7:53PM6.76m
8:13AM6.37m
8:31PM6.49m
8:51AM6.09m
9:09PM6.08m
9:28AM5.72m
9:48PM5.59m
Low Tide
11:49AM0.44m
00:17AM0.14m
12:34PM0.15m
1:00AM-0.06m
1:15PM0.01m
1:40AM-0.08m
1:54PM0.05m
2:18AM0.07m
2:31PM0.25m
2:54AM0.38m
3:07PM0.57m
3:29AM0.78m
3:44PM0.99m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
rain showers
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:07
6:07
6:09
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:45
8:44
8:43
8:40
8:38
8:37
8:35
 mm
1
Temp °C
26
28
22
21
22
19
19
18
18
18
16
16
16
16
16
18
19
18
19
19
19
Feels °C
23
27
23
19
21
19
17
15
17
13
11
11
11
11
11
17
17
15
16
15
16
  • 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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