St Agnes Surf Break

Lat Long: 50.32° N 5.23° W

St Agnes Surf Forecast and Surf Report

Issued: 6 pm 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's St Agnes sea temperature is
18.1°C
1.7° 

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 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s period, WSW swell with glassy winds.
  • Most powerful swell: Tuesday 8 Sep, 4AM (local time) - 7ft (2.1m), 10s period, W swell with 962 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 2.5ft (0.8m), 8s 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 (Sep 09) at 10PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at St Agnes in the next 16 days are 2.1m 10s and forecast to arrive on Tuesday (Sep 08) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Sep 10) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Wed 9th Sep)2.5ft (0.8m) 8s
Best Surf10PM (Wed 9th Sep)2.5ft (0.8m) 8s
Most Powerful 4AM (Tue 8th Sep)7ft (2.1m) 10s

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’s on offer for the St Agnes stretch over the next couple of weeks. I’ll be straight with you – it’s a frustrating run for the most part. We’ve got a window of cleaner conditions later on, but a lot of the time the wind is going to be all over the shop, making things messy.

The first session that’s worth a mention comes on Monday afternoon, the 7th of September. We’ve got a solid 7ft swell rolling in from the west, with a period of 12 seconds. That’s a proper groundswell with some real grunt behind it – the combined energy is a hefty 1224, so plenty of power. The problem is the wind is a cross-shore from the WSW at 15 mph, and the water is sitting at 65°, which is a touch warmer than normal for this time of year. The swell is a bit too big for the beginners, and the conditions are only marginal, so it’s not going to be a classic.

The rest of the first week is a bit of a write-off, to be honest. Tuesday the 8th and Wednesday the 9th are a no-go with strong onshore winds and lumpy, poor conditions. Thursday the 10th cleans up with a light cross-offshore breeze, but the swell drops right off to a tiny 2ft, so there’s nothing to ride. Friday the 11th sees a bit of a bump back up to 5ft, but it’s blown out by a strong NNW wind.

We get a little window on Saturday the 12th of September. The morning looks clean with a cross-offshore breeze from the SSW at 9 mph, and a 3ft, 10-second swell from the west. The energy is a moderate 235. It’s surfable, but the conditions are very ordinary. The wind picks up in the afternoon to 19 mph, which kills it.

The second week is a bit of a mixed bag, but nothing to get too excited about. Sunday the 13th has a 5ft swell but the wind is onshore, so it’s messy. The following days are mostly small and clean, with that cross-offshore breeze returning, but the swell is tiny – we’re talking 1ft to 3ft from the 14th through the 18th. The energy is weak, with values in the low double digits and single hundreds. It’s not going to be worth paddling out for.

The final highlight comes on Saturday the 19th of September. The morning session has a sweet offshore wind from the SE at 15 mph, and a 2ft, 9-second swell from the west. The energy is a weak 102, but that offshore wind is a major positive and will make for clean, glassy lines. It’s small, but it might be the most fun you’ll have all week. The afternoon sees the wind swing around, so early is the call.

Looking at the very end of the run, there’s a pulse of energy around Sunday the 20th of September, with a 6ft swell from the west and a long 12-second period, giving a strong energy reading of 796. But the wind is cross-onshore, making it choppy and lumpy. That setup is more interesting for the kite surfers than us paddle guys.

So, if you’re looking for the best of a bad bunch, Saturday the 19th of September is your standout. It’s small, but that offshore wind is the key. The crowds are ‘often’ at St Agnes, so you might have some company. If you’re after a bit more size, Monday the 7th has the power, but you’ll be battling the cross-shore wind.

Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Mon night. Very mild (max 17°C on Mon afternoon, min 14°C on Mon night). Winds decreasing (fresh winds from the NW on Tue afternoon, calm by Wed night).

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Very mild (max 18°C on Sat night, min 13°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the SW by Sat afternoon).

Mon
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
0
0
0
1
0
0
2
0
0
1
1
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
W
12
2.1
W
11
1.9
W
9
2
WNW
9
2
W
9
1.3
WNW
9
0.9
WNW
9
0.7
WNW
8
0.7
WSW
7
0.4
WSW
7
2.1
W
9
1.5
W
9
1.2
W
8
0.9
W
8
1
W
10
0.8
W
10
1.8
W
8
1.6
W
10
1.4
W
10
1.2
W
10
Wave Graph
Metric surfscale
Energy kJ
1218
999
627
627
617
254
140
73
57
18
723
348
196
98
194
127
377
490
356
262
Wind (km/h)
25
WSW
25
WSW
30
NNW
35
NW
25
NW
15
NNW
10
NW
10
S
15
SSW
25
SW
20
SW
20
NNW
20
NNW
5
WNW
15
SSW
30
SSW
20
W
20
NW
15
NW
10
SW
Wind State
cross
cross
on
cross-on
on
on
cross-on
cross-off
cross-off
cross-off
cross-off
on
on
glassy
cross-off
cross-off
cross-on
on
cross-on
cross-off
High Tide
3:27AM5.10m
3:55PM5.55m
4:25AM5.59m
4:47PM6.06m
5:12AM6.03m
5:31PM6.48m
5:53AM6.36m
6:11PM6.74m
6:31AM6.55m
6:48PM6.80m
7:07AM6.57m
7:24PM6.68m
Low Tide
9:28PM1.42m
9:55AM1.32m
10:29PM0.91m
10:49AM0.82m
11:18PM0.45m
11:34AM0.41m
11:59PM0.11m
12:14PM0.13m
00:37AM-0.05m
12:50PM0.01m
1:11AM-0.04m
1:25PM0.06m
1:44AM0.13m
cloud
heavy rain
rain showers
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
light rain
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:46
6:48
6:48
6:50
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:51
7:49
7:46
7:44
7:42
7:39
 mm
17
2
2
3
Temp °C
17
16
16
16
16
15
15
15
17
17
17
16
15
14
17
16
18
16
16
16
Feels °C
13
12
9
8
10
12
13
13
12
12
15
13
12
13
13
11
15
13
13
15
  • 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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