Surf Forecasts:
St Agnes surf forecast from 4 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 7AM (local time) - 6.5ft (2.0m), 7s period, W swell with 408 kJ wave energy.
Best Forecast Surf Conditions for St Agnes this week:
The most powerful waves expected at St Agnes in the next 16 days are 2.0m 7s and forecast to arrive on Wednesday (Aug 05) at 7AM. 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 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Wed 5th Aug) | 6.5ft (2.0m) 7s |
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 got cookin’ for us.
Straight up, it’s a grim stretch ahead. The next 16 days are a real bummer for surfers, with a solid blank run from the start right through to the 17th of August. There’s just nothing worth paddling out for. The water temp is a touch warmer than normal for this time of year, sittin’ around 65°F, but that’s about the only silver lining.
We’ve got a few tiny pulses, but they’re all tangled up with junk wind. The first real sniff of anything that might be called a wave comes on Monday the 17th of August. Early that morning, the wind goes glassy – dead calm – and the swell is a weak 3ft from the west, with a short period of 6 seconds. The combined energy is a paltry 101 (moderate wave energy), but honestly, it’s just surfable, not special. The glassy conditions are a major positive, meaning the ocean will be clean as a whistle, but the swell is so weak and short-period it’s gonna be mushy and gutless. The best break is St Agnes itself, which is fairly exposed to the swell and likes a WSW direction, but this is a long way off, so keep your hopes in check.
The rest of the month is a write-off. You’ll see some bigger numbers on the 14th and 15th of August, with swell hitting 5ft to 6ft from the west, but the wind is a nasty cross or cross-onshore at 15-19 mph, making it a choppy, lumpy mess. That’s more of a kite-surfing setup than a paddle-surfing one. The period is short (7-8 seconds), so there’s no real grunt in the water.
Look, this is a tough one. It’s a long, dry spell, and that’s just how it goes sometimes. Forecasts can change, but for now, the only thing that even gets a mention is that Monday the 17th morning session. Mark it in the calendar, but don’t hold your breath. Keep your stick in the shed for now.
- Rusty
Short Range ForecastMostly dry. Warm (max 24°C on Mon afternoon, min 16°C on Tue night). Winds increasing (light winds from the SSW on Mon afternoon, fresh winds from the W by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun morning, min 15°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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) | WSW 8 | WSW 8 | SW 7 | SW 7 | WSW 7 | W 7 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | W 6 | W 9 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 9 | WNW 8 | WNW 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 80 | 166 | 171 | 144 | 298 | 366 | 239 | 268 | 123 | 63 | 22 | 15 | 15 | 14 | 26 | 19 | 27 | 40 | 38 | 22 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross |
High Tide | 9:05PM6.07m | 9:25AM5.77m | 9:45PM5.85m | 10:08AM5.55m | 10:32PM5.55m | 11:00AM5.27m | 11:30PM5.22m | 12:05PM5.02m | 00:44AM4.96m | 1:26PM4.93m | 2:09AM4.95m | 2:49PM5.12m | 3:28AM5.21m | |||||||
Low Tide | 3:25AM0.75m | 3:39PM0.89m | 4:05AM0.97m | 4:23PM1.14m | 4:52AM1.25m | 5:17PM1.42m | 5:53AM1.54m | 6:29PM1.65m | 7:13AM1.71m | 7:59PM1.68m | 8:42AM1.63m | 9:25PM1.41m | ||||||||
 |  |  | | | | |  | | | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 19 | 21 | 21 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 18 | 18 | 16 | 20 | 20 | 17 | 24 | 24 | 22 |
Feels °C | 22 | 18 | 18 | 17 | 13 | 12 | 11 | 11 | 12 | 12 | 13 | 16 | 16 | 15 | 18 | 17 | 15 | 21 | 21 | 18 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 | W 10 | W 10 | W 6 | WNW 5 | W 9 | WNW 6 | WNW 9 | WNW 10 | WNW 9 | WNW 8 | WNW 8 | WNW 8 |
| kJ | 80 | 166 | 8 | 8 | 8 | 7 | 7 | 7 | 18 | 17 | 22 | 10 | 15 | 6 | 26 | 19 | 27 | 40 | 38 | 22 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | SW 13 | SW 12 | SW 12 | N 4 | W 9 | SW 12 | W 9 | NW 11 | W 8 | WSW 7 | SW 6 | WSW 7 | WSW 6 |
| kJ | — | — | — | — | — | 7 | — | 7 | 6 | 6 | 6 | 15 | 6 | 14 | 5 | 13 | 18 | 10 | 9 | 4 |
Swell 3 Height (m) Direction Period (s) | E 7 | S 15 | SW 15 | — | — | — | — | — | SW 16 | SW 6 | W 10 | N 5 | — | SW 12 | SW 13 | WNW 4 | WNW 5 | SW 12 | SW 12 | SW 12 |
| kJ | 3 | 4 | 8 | — | — | — | — | — | 10 | 1 | 17 | 2 | — | 5 | 7 | 2 | 5 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | SW 7 | SW 7 | WSW 7 | W 7 | WNW 7 | WNW 7 | WNW 6 | WNW 6 | — | — | WNW 6 | — | — | — | — | — | NW 2 | NW 4 |
| kJ | — | — | 171 | 144 | 298 | 366 | 239 | 268 | 123 | 63 | — | — | 10 | — | — | — | — | — | 1 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 414 | 213 | 290 | 222 | 213 | 155 | 402 | 232 | 400 | 414 | 400 | 240 | 27 | 28 | 27 | 27 | 5 | 27 |
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.
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