Surf Forecasts:
Caerhays surf forecast from 4 Sep 2026:
- Most powerful swell: Monday 7 Sep, 1PM (local time) - 2.5ft (0.7m), 13s period, SW swell with 172 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 0.7m 13s and forecast to arrive on Monday (Sep 07) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Sep 04) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Mon 7th Sep) | 2.5ft (0.7m) 13s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at what’s cooking for us over the next couple of weeks. I’ll be straight with you – it’s a lean run, no two ways about it. We’re looking at a 16-day window starting on September 4th, and the first solid chunk of it is a write-off. For the first six days, from Friday the 4th right through to Wednesday the 9th, it’s all "poor surf conditions" with scores of zero. The swell is tiny, wind is all over the shop, and there’s just no energy to grab onto. It’s a gap of nothing. That’s a hard pill to swallow, but we’ll get through it.
Now, things get a little interesting from Monday the 7th, even if the wave quality ratings don’t improve. A pulse of longer-period swell pushes through—we’re talking a 13-second period from the SW with a combined energy of 141 (moderate). That’s some proper groundswell energy, but it’s hooked up with a 16 mph cross-offshore wind from the WNW, which should keep things clean at Caerhays. Swell height is only 2 ft, so don’t expect bombs, but the clean conditions with that longer period mean there will be some tidy, lined-up waves for the crew who know where to sit. It’s an inconsistent break, and crowds are sometimes a factor, so pick your spot.
The best of the whole outlook actually lands on Monday the 14th of September and Tuesday the 15th. We’ve got a run of true morning glass-offs. On Monday the 14th, a clean cross-offshore breeze from the NNW with that SW wind swell at 2 ft, and a light breeze—that’s a recipe for some fun, clean little waves. The combined energy is modest (16), but it’s the cleanest the wave will look all outlook. Then Tuesday the 15th repeats the trick: clear skies, a light NNW cross-off, and 1 ft of swell from the SSW. It’s not big, but for a break that’s inconsistent and rarely sees clean conditions, this is *the* standout. Bring the grovel board and a smile.
Other than that, the rest of the window into the second week is flat or tiny. There’s a hint of a glassy session on Wednesday the 16th with a 12-second period swell, but it’s only 0.7 ft. It’s going to be a patience tester. The outlook is quiet, but these things can shift. We’ve had a couple of consistent clean mornings in there, so it’s not all doom and gloom.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 20°C on Thu night, min 15°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Very mild (max 18°C on Sun night, min 14°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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) | SW 6 | SSW 5 | SW 5 | SW 7 | WSW 7 | WSW 10 | SE 4 | SE 4 | SE 4 | SW 13 | WSW 12 | WSW 12 | SW 11 | WSW 10 | SW 7 | SW 6 | WSW 3 | SSW 4 | SSW 6 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 26 | 16 | 10 | 8 | 5 | 10 | 16 | 14 | 10 | 140 | 103 | 53 | 55 | 100 | 12 | 9 | 3 | 34 | 42 | 37 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | on | cross-on | cross-on | on | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross | cross-on | cross-off | cross | cross-off |
High Tide | 10:24AM3.99m | 10:56PM3.80m | 11:36AM3.71m | 00:23AM3.52m | 1:12PM3.59m | 2:05AM3.48m | 2:45PM3.72m | 3:29AM3.66m | 3:57PM4.02m | 4:33AM3.95m | 4:52PM4.35m | 5:21AM4.24m | 5:37PM4.63m | ||||||||
Low Tide | 4:49AM0.72m | 5:17PM0.89m | 5:47AM1.08m | 6:26PM1.20m | 7:06AM1.34m | 8:02PM1.30m | 8:44AM1.30m | 9:32PM1.04m | 10:01AM0.97m | 10:37PM0.62m | 10:58AM0.56m | 11:28PM0.21m | 11:45AM0.19m | 00:11AM-0.10m | |||||||
 |  |  |  | |  | | | |  | |  | |  | | | |  | | | | |
 | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — |
 | — | 7:58 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | 15 | 1 | — | — |
Temp °C | 17 | 17 | 15 | 16 | 16 | 16 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 15 | 17 | 17 | 16 | 18 | 20 | 17 |
Feels °C | 15 | 12 | 11 | 14 | 14 | 15 | 14 | 17 | 18 | 14 | 14 | 13 | 11 | 12 | 10 | 12 | 12 | 12 | 16 | 17 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SSW 5 | SW 5 | SW 7 | WSW 7 | WSW 10 | W 8 | W 8 | SE 4 | SW 13 | WSW 12 | SW 6 | SW 11 | S 11 | SW 7 | SW 6 | S 10 | W 13 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 26 | 16 | 10 | 8 | 5 | 10 | 1 | 1 | 4 | 140 | 103 | 15 | 55 | 2 | 12 | 9 | 2 | 3 | 42 | 37 | 20 |
Swell 2 Height (m) Direction Period (s) | S 5 | WSW 8 | SW 14 | SW 13 | S 13 | S 13 | S 13 | S 13 | SW 16 | — | — | WSW 12 | — | — | W 13 | S 10 | — | — | SW 8 | WSW 8 | WSW 10 |
| kJ | 12 | 6 | 8 | 7 | 3 | 3 | 3 | 3 | 10 | — | — | 53 | — | — | 3 | 2 | — | — | 15 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 14 | W 12 | SW 14 | W 12 | — | W 10 | SW 12 | W 12 | — | — | — | — | — | — | — | — | — | — | WSW 10 | W 8 |
| kJ | 8 | 8 | 3 | 7 | 3 | — | 2 | 6 | 3 | — | — | — | — | — | — | — | — | — | — | 10 | 1 |
Wind waves Height (m) Direction Period (s) | WNW 2 | WNW 3 | WNW 2 | — | — | — | SE 4 | SE 4 | SW 5 | W 2 | SW 3 | NNW 2 | WNW 3 | WSW 10 | WNW 3 | — | WSW 3 | SSW 4 | W 3 | W 3 | WNW 2 |
| kJ | 1 | 2 | 1 | — | — | — | 16 | 14 | 4 | 1 | 2 | 1 | 2 | 100 | 2 | — | 3 | 34 | 1 | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 75 | 191 | 75 | 27 | 27 | 25 | 29 | 46 | 27 | 154 | 31 | 157 | 210 | 210 | 75 | 418 | 191 | 430 | 31 | 210 | 75 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Caerhays surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Caerhays Surf forecast
The above surf forecast table for Caerhays provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Caerhays can be found by selecting the local surf guide option on the grey menu. Our Caerhays 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 (Caerhays) 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 Caerhays 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.
Caerhays is 13 km (8 miles) from Saint Austell. If you plan a holiday in South Cornwall, look for hotels and other accommodation in Saint Austell. Saint Austell has rooms for a wide range of budgets as well as car hire and transport links.
Nearest