Surf Forecasts:
St Agnes surf forecast from 17 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 1AM (local time) - 4.5ft (1.3m), 6s period, N swell with 104 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 1.3m 6s and forecast to arrive on Sunday (Jul 19) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Jul 19) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 19th Jul) | 4.5ft (1.3m) 6s |
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 how things are shaping up for St Agnes over the next couple of weeks.
To be straight with you, the whole 16-day window is a bit of a write-off for the surf. There’s nothing on the cards that’s worth getting excited about. The forecast is pretty much a flat spell with a side-serving of onshore wind, so you’re not missing much. We’ve got a long stretch of days here with no real surf to speak of, running from Friday 17th July all the way through to the end of the month. That’s a solid two-week gap with nothing rideable.
The swell is tiny throughout, with most days showing lumps of 1ft to 3ft. The wind is nearly always cross-onshore or onshore, and mostly from the N or NNW, which isn’t going to give you anything clean. Even when the wind drops to a light breeze, the swell is just too small to bother. The combined wave energy sits in the weak range, barely cracking 50 or 60 (23–86) for the first week, so there’s just no power behind it.
There is a small bump in size around the 25th and 26th of July, with swell heights hitting 5ft to 6ft and the combined energy jumping into the moderate range (209–280). But the wind is still onshore and the period is short at 6 to 7 seconds, so it’s just a messy, lumpy ocean. Not surfable, not good. The water temperature at St Agnes doesn’t have any anomaly mentioned, so it’s about average for the time of year.
Come the first of August, it’s back to tiny, weak swell and cross-onshore winds. Nothing changes. Honestly, this is one of those rare total blanks where the ocean just isn’t cooperating. The forecast can always change, but for now, you’re better off keeping the board in the van.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 14°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the N by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 15°C on Mon night). Winds increasing (light winds from the NE on Sun night, fresh winds from the N by Wed afternoon). | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 8 | SSW 13 | W 8 | N 5 | N 5 | N 6 | W 7 | N 5 | N 5 | WNW 11 | N 5 | N 6 | WNW 10 | WNW 10 | N 5 | N 4 | N 5 | N 6 | N 4 | NNW 5 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 16 | 12 | 37 | 50 | 104 | 4 | 29 | 38 | 12 | 33 | 62 | 33 | 33 | 41 | 32 | 62 | 72 | 19 | 25 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on | on | cross-on | on | cross-on |
High Tide | 7:57AM6.34m | 8:18PM6.65m | 8:42AM6.17m | 9:02PM6.40m | 9:26AM5.89m | 9:47PM6.02m | 10:10AM5.54m | 10:32PM5.58m | 10:57AM5.17m | 11:21PM5.12m | 11:50AM4.83m | 00:18AM4.74m | 12:52PM4.59m | 1:26AM4.50m | |||||||
Low Tide | 2:18PM0.21m | 2:48AM0.18m | 3:02PM0.40m | 3:31AM0.46m | 3:45PM0.71m | 4:14AM0.83m | 4:29PM1.08m | 4:58AM1.24m | 5:16PM1.47m | 5:45AM1.62m | 6:09PM1.82m | 6:41AM1.93m | 7:14PM2.05m | ||||||||
 | |  | | |  | | | | | | | | | |  | | | | | | |
 | 5:28 | — | — | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — |
 | — | — | 9:23 | — | — | 9:22 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:19 | — | — | 9:16 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 18 | 17 | 17 | 16 | 19 | 19 | 18 | 19 | 18 | 16 | 21 | 20 | 17 | 15 | 18 | 17 | 16 | 16 | 18 |
Feels °C | 20 | 19 | 17 | 14 | 12 | 11 | 13 | 13 | 15 | 15 | 14 | 13 | 19 | 17 | 15 | 10 | 12 | 12 | 12 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 4 | W 8 | W 8 | W 8 | W 8 | W 8 | N 6 | SE 6 | W 9 | N 5 | WNW 11 | WNW 11 | N 5 | N 5 | WNW 10 | W 10 | W 9 | W 9 | W 9 | W 8 | N 4 |
| kJ | 6 | 12 | 12 | 12 | 11 | 4 | 41 | 10 | 6 | 16 | 24 | 38 | 27 | 29 | 31 | 16 | 15 | 14 | 14 | 12 | 5 |
Swell 2 Height (m) Direction Period (s) | W 8 | SSW 6 | SW 5 | SW 11 | SW 11 | SW 12 | ESE 6 | WNW 7 | SE 5 | WNW 11 | W 8 | W 8 | WNW 10 | WNW 10 | SW 16 | SW 16 | SW 15 | SW 14 | WNW 4 | SW 14 | W 8 |
| kJ | 12 | 3 | 1 | 5 | 5 | 5 | 6 | 4 | 1 | 12 | 5 | 1 | 33 | 33 | 10 | 10 | 9 | 8 | 3 | 8 | 12 |
Swell 3 Height (m) Direction Period (s) | SW 6 | SSW 13 | SW 11 | SW 5 | — | S 21 | W 7 | W 7 | WNW 12 | W 9 | SW 18 | SW 18 | SW 16 | SW 16 | S 11 | S 16 | — | — | SW 15 | — | SW 13 |
| kJ | 5 | 16 | 5 | 1 | — | 9 | 4 | 1 | 14 | 6 | 12 | 12 | 11 | 10 | 2 | 5 | — | — | 8 | — | 7 |
Wind waves Height (m) Direction Period (s) | — | NNW 4 | N 4 | N 5 | N 5 | N 6 | E 6 | N 5 | N 5 | — | N 5 | N 6 | E 4 | — | N 5 | N 4 | N 5 | N 6 | N 4 | NNW 5 | WNW 4 |
| kJ | — | 5 | 8 | 37 | 50 | 104 | 100 | 29 | 38 | — | 33 | 62 | 2 | — | 41 | 32 | 62 | 72 | 19 | 25 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 279 | 918 | 406 | 582 | 582 | 71 | 41 | 570 | 393 | 43 | 385 | 240 | 10 | 710 | 349 | 751 | 745 | 210 | 527 | 578 | 546 |
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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