Surf Forecasts:
St Agnes surf forecast from 7 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 11s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 4PM (local time) - 3.5ft (1.0m), 11s period, WNW swell with 249 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 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 4AM. The primary swell is predicted to be 0.7m and 11s period. 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 1.0m 11s and forecast to arrive on Thursday (Aug 13) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Aug 11) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Best Surf | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Most Powerful | 4PM (Thu 13th Aug) | 3.5ft (1.0m) 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’s cookin’ for the St Agnes area over the next couple of weeks.
Right off the bat, I gotta be straight with you – the first week and a half is a tough slog. We’re looking at a long, dry spell of poor surf with nothing worth paddling out for. From Friday the 7th right through to Sunday the 17th of August, it’s mostly tiny, weak waves – we’re talking ankle-snappers of 1ft to 2ft – with a few bigger days but mangled by onshore winds. The combined swell energy stays low, mostly under 100, and the wind is a mess. It’s a real bummer, but that’s how it goes sometimes.
The light finally shows up on Tuesday the 18th. That morning, the swell picks up to a solid 6ft from the west, with a period of 8 seconds, and the combined energy jumps to 494 (moderate). The wind will be a clean cross-off from the southwest, which is a major positive. The water is running about 65°, which is a touch warmer than normal for this time of year. This is the one standout in the whole forecast. St Agnes is a fairly exposed, fairly consistent beach break, and it’s an intermediate spot. The crowd factor is ‘often’ so you can expect some company, but for this window, it’s the best we’ve got.
The next morning, Wednesday the 19th, still has some size – 6ft from the west with a period of 8 seconds – but the wind swings onshore from the north, making it a bit bumpy. The energy is still decent at 446 (moderate), but it’s not as clean as Tuesday. The setup is more interesting for kite surfing than paddle surfing that day.
After that, the wind goes bad again and the swell gets messy or too big, with a few days of 7ft to 8ft but with onshore winds and choppy conditions. There’s a big spike in energy on the 20th (1234 – strong to very strong), but with 8ft onshore, that’s only for experts and even then, it’s going to be a washing machine. Not a pretty picture.
So, to wrap it up: hold out for Tuesday the 18th. That morning session is your best bet. The rest of the period is mostly a write-off. Mother Nature isn’t playing nice, but forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 15°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Tue afternoon, min 17°C on Wed night). Winds decreasing (fresh winds from the ESE on Tue morning, calm by Tue night). | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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) | W 9 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | WSW 9 | W 9 | WNW 11 | WNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 15 | 15 | 6 | 17 | 31 | 16 | 16 | 25 | 26 | 24 | 34 | 33 | 19 | 11 | 89 | 158 | 169 | 166 | 181 | 249 | 176 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | cross-off | cross-on | cross-on | on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | on |
High Tide | 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 | 6:11AM6.33m | 6:31PM6.76m | ||||||||
Low Tide | 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 | 12:34PM0.15m | 1:00AM-0.06m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — |
 | — | 8:54 | — | — | 8:52 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 22 | 22 | 18 | 20 | 20 | 18 | 20 | 20 | 21 | 22 | 23 | 20 | 22 | 22 | 20 | 17 | 17 | 17 |
Feels °C | 14 | 14 | 15 | 20 | 21 | 18 | 18 | 17 | 17 | 18 | 18 | 20 | 16 | 17 | 17 | 20 | 21 | 21 | 14 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 5 | W 9 | W 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 5 | W 8 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | WSW 9 | W 9 | WNW 11 | WNW 10 |
| kJ | 5 | 15 | 6 | 17 | 31 | 16 | 16 | 25 | 26 | 15 | 34 | 33 | 19 | 11 | 89 | 158 | 169 | 166 | 181 | 249 | 176 |
Swell 2 Height (m) Direction Period (s) | W 9 | WNW 4 | WNW 5 | SW 7 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | SW 6 | WNW 8 | NW 5 | SW 7 | WSW 6 | W 9 | WNW 7 | ESE 7 | ESE 6 | W 14 | WNW 12 | W 8 | WSW 9 |
| kJ | 15 | 2 | 3 | 2 | 5 | 4 | 4 | 4 | 6 | 24 | 11 | 7 | 4 | 7 | 10 | 4 | 3 | 4 | 145 | 108 | 62 |
Swell 3 Height (m) Direction Period (s) | N 5 | SW 12 | SW 12 | NW 5 | SW 11 | — | SW 12 | SW 12 | SW 12 | SW 6 | SW 7 | SW 13 | W 10 | SW 6 | SW 6 | SW 6 | — | W 14 | — | — | — |
| kJ | 2 | 6 | 5 | 1 | 5 | — | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 1 | 1 | 1 | — | 16 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | WNW 3 | — | — | NNE 3 | SE 4 | SE 4 | SE 6 | — | W 2 | W 3 | — | NW 4 | NW 4 |
| kJ | — | — | — | — | — | — | — | — | 5 | — | — | 2 | 12 | 24 | 9 | — | 1 | 1 | — | 8 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 400 | 390 | 384 | 41 | 41 | 27 | 232 | 402 | 44 | 27 | 27 | 27 | 232 | 402 | 5 | 15 | 29 | 15 | 23 | 28 | 23 |
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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