Surf Forecasts:
Caerhays surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 1PM (local time) - 3.5ft (1.1m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Sunday 30 Aug, 10PM (local time) - 5ft (1.6m), 8s period, SW swell with 338 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 1PM (local time) - 3.5ft (1.1m), 8s period with W swell.
Best Forecast Surf Conditions for Caerhays this week:
The surf forecast for Caerhays over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 1PM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 1.0m and 7s. Another secondary swell of 0.1m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Caerhays in the next 16 days are 1.6m 8s 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 1.1m 7s period and expected on Tuesday (Aug 25) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 28th Aug) | 3.5ft (1.1m) 8s |
| Best Surf | 1PM (Fri 28th Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 10PM (Sun 30th Aug) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
G'day, Rusty here. Well, let's be straight with you—this outlook for Caerhays is a tough one. We’re looking at a long, quiet stretch ahead before any real surf shows up. For the first two weeks of this 16-day window, it’s pretty much flat to undersized and mostly blown out. The water's sitting at 64°F, which is a touch warmer than normal for this time of year, so that’s a small comfort if you’re just floating around.
Right from the get-go, Monday the 24th and Tuesday the 25th of August are a write-off. We've got a fresh cross-shore wind thumping in at 22 mph on Monday, with swell around 5ft to 6ft but short-period slop at 6 to 7 seconds and weak energy (199 to 298). It’s lumpy chop, not surfable. Tuesday morning drops right off to 0.7ft, and by the afternoon it’s a choppy 2ft mess. Wednesday the 26th through Sunday the 30th are all undersized—nothing over 4ft—with onshore or cross-onshore winds and energy readings barely breaking 90. Not worth paddling out.
Monday the 31st of August brings a bit of a shift: a 3ft groundswell from the WSW at 11 seconds, with moderate energy (216), but the wind is a strong 25 mph cross-shore, so it’s messy cross-chop. Thursday the 3rd and Friday the 4th of September are tiny, clean but flat—0.7ft or 1.0ft at best.
Now, the standout window comes around Monday the 7th of September. That’s over two weeks away, so take it with a pinch of salt, but it’s the only true highlight. We get a solid pulse of groundswell: 6ft on Monday morning from the SW, with a very long period of 18 seconds and massive energy (1901). This is proper swell, but with that long period, it’s going to be best on a point break or reef—Caerhays is a beach break, so these waves might break a bit straight and fat. The wind is a clean cross-offshore at 16 mph, and the 6ft size is edging into expert territory. The Monday afternoon session drops to 5ft but the energy is even stronger (2051). Tuesday the 8th of September sees the swell dropping to 2ft, still clean but fading.
Overall, the entire first two weeks are a bust. If you’re desperate, wait until the 7th of September for the only real swell of the window. It’s not for beginners, but experienced surfers might get a few clean, powerful sets. Forecasts can change, but right now, it’s a waiting game.
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Very mild (max 19°C on Tue morning, min 16°C on Mon night). Winds decreasing (strong winds from the E on Mon morning, light winds from the S by Tue night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sat morning. Warm (max 20°C on Thu afternoon, min 16°C on Thu night). Winds increasing (light winds from the SW on Thu night, fresh winds from the WSW by Sat afternoon). | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | ESE 6 | ESE 7 | ESE 7 | SSW 8 | ESE 4 | SW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 6 | SSW 7 | SSW 7 | S 7 | SSW 6 | W 8 | SW 6 | SSW 5 | SSW 6 | SSW 7 | SW 6 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 181 | 286 | 186 | 7 | 20 | 17 | 6 | 5 | 9 | 48 | 81 | 86 | 117 | 40 | 45 | 30 | 28 | 47 | 30 | 88 | 311 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross | on | cross | cross | on | cross-on | cross-on |
High Tide | 3:45PM3.50m | 4:14AM3.47m | 4:38PM3.78m | 5:02AM3.73m | 5:21PM4.07m | 5:41AM3.98m | 5:56PM4.34m | 6:14AM4.21m | 6:27PM4.56m | 6:44AM4.40m | 6:56PM4.72m | 7:13AM4.53m | 7:25PM4.79m | ||||||||
Low Tide | 10:34PM1.40m | 10:50AM1.26m | 11:16PM1.04m | 11:29AM0.91m | 11:53PM0.68m | 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 | ||||||||
 | |  |  | |  | | |  | | | | | | |  |  | | |  | | |
 | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — |
 | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — |
mm | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 3 | 2 | — | 1 | 2 | 1 |
Temp °C | 18 | 18 | 18 | 19 | 18 | 17 | 19 | 19 | 17 | 19 | 20 | 16 | 19 | 20 | 16 | 18 | 19 | 17 | 18 | 19 | 16 |
Feels °C | 11 | 11 | 14 | 14 | 14 | 16 | 18 | 18 | 14 | 16 | 17 | 15 | 18 | 17 | 14 | 16 | 14 | 13 | 16 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SSW 8 | ESE 6 | ESE 5 | SSW 8 | SSW 7 | SSW 7 | SSW 6 | ESE 4 | SSW 7 | S 7 | SSW 6 | SW 6 | SW 6 | S 11 | SSW 6 | SSW 7 | W 12 | WSW 11 |
| kJ | 8 | 7 | 7 | 7 | 13 | 5 | 6 | 5 | 9 | 48 | 2 | 86 | 117 | 40 | 9 | 30 | 2 | 47 | 30 | 3 | 22 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | SW 9 | S 13 | SSW 8 | SW 8 | ESE 5 | S 12 | S 12 | S 12 | S 12 | — | — | S 11 | S 11 | S 11 | — | W 6 | W 13 | — | — |
| kJ | 3 | 3 | 3 | 3 | 14 | 17 | 2 | 3 | 3 | 3 | 3 | — | — | 3 | 2 | 2 | — | 38 | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 11 | S 13 | S 13 | S 12 | — | W 8 | S 12 | E 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 2 | 1 | 2 | 3 | 3 | 3 | — | 1 | 3 | 3 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 6 | ESE 7 | ESE 7 | E 7 | ESE 4 | — | — | SSE 2 | ESE 3 | SE 4 | SSW 7 | — | — | W 3 | W 8 | SSW 6 | SSW 5 | — | S 4 | SW 6 | SW 8 |
| kJ | 181 | 286 | 186 | 97 | 20 | — | — | 1 | 3 | 4 | 81 | — | — | 5 | 45 | 14 | 28 | — | 6 | 88 | 311 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 412 | 270 | 211 | 25 | 25 | 26 | 27 | 74 | 239 | 25 | 27 | 25 | 25 | 31 | 31 | 46 | 243 | 185 | 45 | 516 | 531 |
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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