
Surf Forecasts:
St Agnes surf forecast from 6 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 11s period, W swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 4AM (local time) - 4.5ft (1.3m), 11s period, W swell with 388 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 2ft (0.6m), 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.3m and 7s. 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 1.3m 11s and forecast to arrive on Thursday (Aug 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Thursday (Aug 06) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Best Surf | 1AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Most Powerful | 4AM (Thu 13th Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for St Agnes over the next 16 days.
The Lowdown
Right, grab a coffee, 'cause I’ve had a proper look at the charts for St Agnes, and to be brutally honest, it’s a pretty grim stretch comin' up. There’s a massive, frustrating gap here with absolutely nothing worth paddling out for. From Thursday the 6th of August, all the way through to the morning of Tuesday the 18th of August, it’s a write-off. We’re talking nearly two weeks of tiny, weak, or just plain messy slop, with a lot of onshore and cross-onshore wind. The swell is tiny, often under 2ft, and the wind is just killing any chance of a decent wave. It’s the kind of run that makes you want to just wax the board and look at it.
Now, after that long, dry spell, we finally get a tiny glimmer on Tuesday morning, the 18th of August. The water temp is about 65°, which is a touch warmer than normal for this time of year, so the wettie will feel alright. We’re looking at a tiny 2ft swell from the west, and the wind goes dead glassy – calm, with a light breeze from the south. The energy is really weak, only about 67, so it’s proper small and gutless. The wave comment says "surfable waves but very ordinary conditions," which is being generous. It’s a 1 out of 10, so manage your expectations big time. If you’re desperate for a float and a few ankle-biters, you might get a couple of knee-high rolls, but it’s not worth a special trip. The direction is western, and the optimum swell for St Agnes is from the WSW, so it’s close enough, but the size is just too tiny to do much with.
After that tease, it’s right back to rubbish. The wind howls from the 19th onwards, with a fresh to strong breeze from the WSW, and the swell stays weak and messy. There’s a brief spike of windswell on the 21st of August, hitting 5ft, but it’s from the north with a short, awful period of 5 seconds and a stiff cross-onshore wind. That’s just a messy, lumpy, choppy mess. Honestly, for a beach setup like this, with that much wind and poor quality, it looks more interesting for a kite surfer than a paddler. The only real takeaway is that Tuesday morning glass-off, and even that’s a stretch.
Stay patient, gang. The ocean will turn around eventually.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Tue morning, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | WNW 6 | W 6 | W 10 | W 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | WSW 9 | WSW 9 |
Wave Graph | |||||||||||||||||||||
77 | 30 | 17 | 15 | 15 | 15 | 22 | 30 | 32 | 15 | 25 | 26 | 23 | 22 | 33 | 19 | 18 | 84 | 226 | 238 | 202 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | on | cross-on | cross-off | glassy | cross-on | cross-on | on | on | cross-on | cross-on | on | glassy | cross-on | glassy | cross | cross-on | cross-on |
High Tide | 11:00AM5.27m | 11:30PM5.22m | 12:05PM5.02m | 00:44AM4.96m | 1:26PM4.93m | 2:09AM4.95m | 2:49PM5.12m | 3:28AM5.21m | 4:00PM5.54m | 4:32AM5.62m | 4:57PM6.03m | 5:25AM6.02m | 5:47PM6.47m | ||||||||
Low Tide | 5:17PM1.42m | 5:53AM1.54m | 6:29PM1.65m | 7:13AM1.71m | 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 | ||||||||
5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | |
— | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 18 | 18 | 16 | 21 | 22 | 17 | 21 | 20 | 18 | 21 | 21 | 18 | 22 | 22 | 19 | 23 | 23 | 20 |
Feels °C | 14 | 14 | 15 | 16 | 15 | 15 | 19 | 22 | 16 | 18 | 16 | 17 | 19 | 19 | 17 | 21 | 21 | 19 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | WNW 6 | W 6 | N 5 | WNW 5 | WNW 4 | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 5 | WNW 5 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | WSW 9 | WSW 9 |
77 | 30 | 5 | 8 | 3 | 15 | 22 | 30 | 32 | 15 | 25 | 26 | 13 | 9 | 33 | 19 | 18 | 84 | 226 | 238 | 202 | |
Swell 2 Height (m) Direction Period (s) | N 5 | N 5 | W 10 | W 9 | W 9 | WNW 5 | W 9 | WSW 7 | SW 7 | WSW 6 | SW 6 | SW 6 | WNW 8 | WNW 8 | SW 6 | WSW 6 | W 9 | WNW 7 | E 4 | E 6 | W 11 |
7 | 7 | 17 | 15 | 15 | 3 | 6 | 5 | 7 | 4 | 6 | 6 | 23 | 22 | 6 | 4 | 7 | 10 | 2 | 6 | 123 | |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | SW 6 | N 5 | SW 12 | SW 12 | SW 7 | SW 11 | SW 12 | SW 12 | SW 12 | SW 12 | SW 6 | SW 6 | WNW 4 | W 10 | WSW 6 | SW 6 | — | — | E 5 |
18 | 17 | 1 | 2 | 6 | 5 | 2 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 2 | 8 | 3 | 1 | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | W 5 | — | — | — | — | — | — | N 2 | N 2 | NW 3 | — | — | — | — | — | — | — | — | — |
— | — | 14 | — | — | — | — | — | — | 1 | 1 | 4 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 28 | 232 | 400 | 400 | 390 | 201 | 41 | 41 | 27 | 384 | 44 | 285 | 44 | 223 | 27 | 41 | 201 | 0 | 15 | 29 | 15 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.











