Surf Forecasts:
Caerhays surf forecast from 27 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 10PM (local time) - 6.5ft (2.0m), 9s period, WSW swell with 576 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 2.0m 9s and forecast to arrive on Sunday (Aug 30) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 31) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Sun 30th Aug) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this outlook is a tough one to write. We’ve got a 16-day window, but for the vast majority of it, the surf is just not cooperating. The only real glimmer of hope comes right at the very end, and even then, it’s far from a classic.
For the first two weeks, from Thursday 27 August all the way through to Thursday 10 September, it’s a write-off. We’re looking at a long, bleak stretch of poor surf conditions. The energy is weak, with values mostly in the double digits, and the wind is a constant problem – cross, cross-on, and fresh to strong breezes just mess everything up. Even when the swell bumps up a little on Saturday 29 August with a moderate 247 in the combined energy, the strong cross-onshore wind makes it a mess. There’s a brief moment on Monday 31 August afternoon where it goes clean, but the swell is tiny at 1 ft with a nothing period of 10 seconds. Honestly, it’s more of a lake than a surf zone. If you’re a kite surfer, the strong winds on Saturday 29 August might get you interested, but for a paddle surfer, it’s a no-go.
Then, after a long dry spell, we finally get a sliver of hope on Friday 11 September. That morning, the wind swings to a gentle breeze from the NE, giving us a clean, cross-off wind. The swell is small at 2 ft from the SSW with a period of 6 seconds, but the combined energy ticks up to 87, and the surfable waves are described as “very ordinary conditions.” That’s a 1 out of 10, but it’s the only score above zero in the whole forecast. Caerhays is the only break on the radar, and it’s inconsistent, so don’t get your hopes up. The water temperature is about average for this time of year, nothing unusual there.
So, the standout – if you can call it that – is Friday 11 September morning at Caerhays. It’s the only chance to get wet, but you’ll be scratching around for ankle-biters. The rest of the period is a solid, blank run. For a spot that’s fairly exposed, it’s a cruel spell, but these things happen. Forecasts can change, so keep an eye out, but for now, it’s looking pretty grim.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Warm (max 20°C on Thu afternoon, min 16°C on Thu night). Winds increasing (light winds from the S on Wed night, strong winds from the SW by Sat morning). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Sun afternoon. Warm (max 20°C on Tue morning, min 15°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | SE 5 | S 6 | SW 6 | SW 6 | SSW 7 | SW 7 | SSW 7 | SW 9 | SSW 9 | SSW 7 | SSW 7 | SSW 6 | SW 8 | SSW 7 | SSW 7 | SW 6 | SW 6 | S 16 | S 16 | SW 4 | SW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 18 | 15 | 60 | 37 | 93 | 88 | 247 | 460 | 113 | 47 | 62 | 41 | 48 | 41 | 17 | 9 | 8 | 5 | 5 | 10 | 45 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross | cross | on | on | cross | cross | cross-off | cross | cross | cross-off | cross-off | glassy | cross-on | cross-on |
High Tide | 5:41AM3.98m | 5:56PM4.34m | 6:14AM4.21m | 6:27PM4.56m | 6:44AM4.40m | 6:56PM4.72m | 7:13AM4.53m | 7:25PM4.79m | 7:43AM4.60m | 7:56PM4.79m | 8:14AM4.58m | 8:30PM4.68m | 8:50AM4.47m | 9:09PM4.46m | |||||||
Low Tide | 12:04PM0.58m | 00:26AM0.36m | 12:38PM0.30m | 1:00AM0.10m | 1:12PM0.09m | 1:33AM-0.08m | 1:47PM-0.03m | 2:08AM-0.14m | 2:22PM-0.05m | 2:44AM-0.09m | 3:00PM0.05m | 3:22AM0.09m | 3:40PM0.25m | ||||||||
 |  |  |  |  |  | |  | | |  |  | | | | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:04 | — | — | 8:01 | — |
mm | — | — | — | 2 | 3 | 5 | 1 | — | — | — | 5 | 2 | — | — | — | — | 2 | — | — | — | — |
Temp °C | 19 | 20 | 16 | 19 | 19 | 18 | 19 | 19 | 17 | 19 | 19 | 16 | 19 | 18 | 16 | 20 | 18 | 16 | 19 | 19 | 17 |
Feels °C | 18 | 18 | 15 | 15 | 15 | 14 | 13 | 11 | 12 | 15 | 15 | 12 | 16 | 14 | 14 | 15 | 14 | 14 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 5 | ESE 5 | SSW 6 | S 12 | SSW 7 | SSW 6 | — | — | SSW 9 | WSW 10 | WSW 10 | SSW 6 | SW 8 | SSW 7 | SSW 7 | SW 6 | SW 6 | SSW 5 | S 16 | S 15 | S 15 |
| kJ | 18 | 10 | 23 | 3 | 93 | 37 | — | — | 113 | 20 | 10 | 41 | 48 | 35 | 17 | 9 | 8 | 3 | 5 | 5 | 4 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | SW 6 | SE 4 | SW 11 | S 11 | — | — | — | WSW 8 | S 9 | — | WSW 8 | S 6 | WSW 10 | WSW 8 | W 8 | W 9 | S 16 | W 8 | W 8 | — |
| kJ | 17 | 6 | 1 | 5 | 3 | — | — | — | 48 | 2 | — | 26 | 28 | 41 | 6 | 1 | 1 | 5 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | — | — | — | — | — | — | WSW 10 | — | — | W 10 | WSW 11 | — | WSW 10 | W 10 | S 17 | W 8 | S 10 | S 10 | — |
| kJ | 3 | 3 | — | — | — | — | — | — | 10 | — | — | 2 | 12 | — | 10 | 2 | 6 | 1 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | S 6 | SW 6 | SW 6 | W 3 | SW 7 | SSW 7 | SW 9 | W 3 | SSW 7 | SSW 7 | — | W 2 | WNW 2 | — | — | — | — | SW 3 | SW 4 | SW 5 |
| kJ | — | 15 | 60 | 37 | 2 | 88 | 247 | 460 | 3 | 47 | 62 | — | 1 | 1 | — | — | — | — | 2 | 10 | 45 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 185 | 44 | 7 | 270 | 191 | 427 | 285 | 191 | 165 | 39 | 289 | 31 | 31 | 19 | 185 | 270 | 191 | 153 | 19 | 180 | 191 |
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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