Surf Forecasts:
Caerhays surf forecast from 4 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 7PM (local time) - 2.5ft (0.8m), 6s period, SSW swell with 52 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 0.8m 6s and forecast to arrive on Tuesday (Aug 04) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Wednesday (Aug 05) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Tue 4th Aug) | 2.5ft (0.8m) 6s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's talk about the Caerhays forecast for the next couple of weeks. To be honest, it’s a pretty grim stretch we’re looking at, so don’t go getting your hopes up for any kind of quality waves right now.
Right off the bat, if you're looking for a proper surf, you’ll be waiting a long time. The first recommendation for a surfable wave doesn't show up until Sunday, the 16th of August, and even that is just barely making the cut. That’s nearly two weeks of flat, tiny, or junk conditions. The water is sitting at 66°F, which is a touch warmer than normal for this time of year, but that’s not going to help the waves do anything.
For that first little blip on Sunday the 16th afternoon, we’re looking at a tiny 3ft SSW swell. It’s clean with a cross-off breeze, but the wave energy is weak at only (60). It’s small, it’s ordinary, and it’s more of a paddle than a ride.
The only real standout in this entire 16-day window is Monday the 17th. On Monday morning, Caerhays picks up a 3ft SW swell with a moderate offshore NNE wind at 15 mph. The conditions should be clean and the combined energy hits a moderate (110) – finally something with a bit of kick. It’s not big, but that clean, offshore wind will make it smooth. Just a heads up, it can get a bit busy here sometimes. After lunch, the wind goes glassy with light NW airs and a 3ft SSW swell. Monday is your best bet if you’re desperate for a surfable wave, but don’t expect perfection.
After that, Tuesday the 18th morning has a clean 2ft SW swell with light offshore winds, but that same afternoon the wind cranks up to 19 mph, making it messy. Wednesday the 19th morning is glassy again with a 2ft WSW swell that has a decent 11-second period, but it’s still just ankle-biters.
So there you have it. A big long gap of nothing, then a couple of days right at the back end of the outlook that look half-decent, with Monday the 17th being the clear high point. Keep an eye on it, but don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 14°C on Thu night). Winds decreasing (fresh winds from the SSW on Tue morning, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 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) | SSW 7 | SSW 4 | SSW 6 | SW 7 | SW 7 | SW 6 | SW 6 | SW 6 | S 12 | S 15 | S 12 | S 12 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 46 | 20 | 35 | 38 | 12 | 9 | 5 | 5 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 3 | 3 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | off | cross-on | on | off | glassy | cross | cross-off | cross | cross-off | off |
High Tide | 9:38PM4.37m | 10:04AM4.10m | 10:25PM4.17m | 10:57AM3.94m | 11:25PM3.94m | 12:04PM3.78m | 00:40AM3.74m | 1:23PM3.72m | 2:02AM3.68m | 2:42PM3.82m | 3:20AM3.79m | 3:54PM4.05m | |||||||||
Low Tide | 4:03PM0.44m | 4:28AM0.44m | 4:46PM0.65m | 5:13AM0.69m | 5:37PM0.90m | 6:09AM0.96m | 6:43PM1.13m | 7:23AM1.17m | 8:10PM1.21m | 8:52AM1.15m | 9:38PM1.01m | 10:10AM0.89m | 10:47PM0.63m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — |
 | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 18 | 18 | 18 | 16 | 18 | 18 | 16 | 18 | 19 | 16 | 18 | 20 | 17 | 22 | 22 | 18 | 23 | 23 | 18 |
Feels °C | 19 | 17 | 17 | 12 | 12 | 12 | 13 | 13 | 14 | 16 | 16 | 14 | 16 | 19 | 14 | 20 | 20 | 15 | 22 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 15 | SSW 6 | SW 7 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SW 5 | S 12 | S 13 | S 13 | W 7 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | W 7 |
| kJ | 4 | 4 | 35 | 38 | 7 | 9 | 5 | 5 | 1 | 1 | 1 | 3 | 3 | 3 | 1 | 2 | 2 | 1 | 1 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 15 | — | S 13 | SW 7 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | — | S 11 | S 11 | S 12 | S 12 | S 12 | S 12 | S 11 | S 13 | S 13 |
| kJ | 4 | 4 | — | 3 | 12 | 3 | 3 | 3 | 3 | 3 | 3 | — | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 13 | — | W 10 | W 10 | W 10 | S 15 | SW 6 | W 5 | W 5 | S 13 | — | S 12 | SW 12 | S 12 | S 11 | S 11 | S 11 |
| kJ | — | — | — | — | 3 | — | 2 | 2 | 2 | 4 | 1 | 1 | 1 | 3 | — | 3 | 6 | 3 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 4 | — | WNW 3 | W 3 | WNW 3 | WNW 2 | NW 3 | — | — | — | — | — | — | — | — | NW 3 | NNW 2 | — | — | — |
| kJ | 46 | 20 | — | 3 | 5 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 191 | 210 | 210 | 191 | 248 | 160 | 219 | 344 | 428 | 418 | 227 | 252 | 209 | 28 | 37 | 209 | 43 | 412 | 210 | 227 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.
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