Surf Forecasts:
Caerhays surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 1AM (local time) - 3ft (0.9m), 7s period, SSW swell with glassy winds.
- Most powerful swell: Monday 31 Aug, 7AM (local time) - 4.5ft (1.4m), 10s period, WSW swell with 356 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 1AM (local time) - 3ft (0.9m), 7s period with SSW 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 1AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.1m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Caerhays in the next 16 days are 1.4m 10s and forecast to arrive on Monday (Aug 31) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Tuesday (Aug 25) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 28th Aug) | 3ft (0.9m) 7s |
| Best Surf | 1AM (Fri 28th Aug) | 3ft (0.9m) 7s |
| Most Powerful | 7AM (Mon 31st Aug) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright, this is Rusty. Let me tell you, right off the bat, this 16-day stretch for the Caerhays region is a real heartbreaker. We’ve got a long, dry gap staring us in the face. For the first week and a half or so, you’re looking at nothing but "poor surf conditions" across the board. The wind is mostly onshore, cross, or just messy, and the swell is tiny or completely junked up. It’s flat, it’s choppy, it’s not worth getting wet for. It’s a real bummer of a start, and that blank run stretches for a good while.
Then, things get interesting, but it’s a tease. On Monday the 7th of September, the ocean finally wakes up. We see a quick pulse of proper swell at Caerhays, with the combined energy jumping to a solid 518 (moderate wave energy) on the morning, even though it’s a strong offshore wind making it clean but tough to paddle into. The real standout, though, and the only thing worth circling on your calendar, is the Monday afternoon of September 7th. That’s when a big, serious groundswell rolls in from the SW. We’re talking a solid 10ft swell with a very long period of 18 seconds (the combined energy hits 4642 – that is very strong wave energy). Now, that is expert territory for sure, way too big for beginners, and with that period, it’s going to be a beast best suited for a point or reef break, not the beach. It’s clean with cross-off wind. This is the one, the only real shot at something special, but it’s a long way out, so keep an eye on the charts.
Before that, the water temperature is right around 64°, which is a touch warmer than normal for this time of year.
So, there you have it. A lot of waiting for one big, powerful Monday. Rusty out.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 19°C on Mon afternoon, min 16°C on Mon night). Winds decreasing (fresh winds from the E on Mon afternoon, calm by Tue night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 21°C on Sat afternoon, min 16°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the SSW by Sun morning). | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 7 | ESE 7 | SSW 8 | ESE 5 | SW 8 | SSW 8 | SSE 4 | ESE 4 | SE 5 | SSW 6 | SSW 7 | SSW 7 | WSW 7 | SW 7 | SSW 6 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 286 | 252 | 7 | 51 | 17 | 6 | 6 | 15 | 29 | 77 | 97 | 70 | 99 | 65 | 21 | 23 | 87 | 72 | 47 | 30 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | on | on | cross-on | cross | cross-on | on | glassy | cross | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on | cross |
High Tide | 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 | |||||||
 |  | | |  |  | |  | | | | | | |  | | | | | | |
 | — | — | 6:22 | — | — | 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 | — | — | — | — | — | — | — | 3 | — | — | — | — | — | 1 | 2 | — | — | — | 1 | — |
Temp °C | 19 | 18 | 19 | 19 | 17 | 19 | 19 | 18 | 18 | 19 | 17 | 20 | 20 | 17 | 20 | 21 | 18 | 19 | 19 | 16 |
Feels °C | 12 | 12 | 14 | 17 | 17 | 18 | 18 | 14 | 17 | 17 | 17 | 18 | 15 | 15 | 18 | 17 | 15 | 13 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 8 | SSW 8 | SE 4 | SSE 4 | SSW 7 | SSW 6 | SE 5 | SE 5 | SSW 7 | SSW 7 | — | S 9 | SSW 6 | SSW 6 | SSW 8 | SSW 8 | SSW 7 | SSW 7 |
| kJ | 7 | 7 | 7 | 14 | 4 | 3 | 5 | 8 | 28 | 6 | 97 | 70 | — | 2 | 21 | 23 | 87 | 72 | 47 | 30 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | S 13 | S 13 | SW 8 | SSW 8 | S 12 | S 12 | S 12 | SSW 9 | S 12 | S 12 | — | — | S 11 | SSW 8 | SE 5 | — | S 9 | WSW 8 |
| kJ | 3 | 3 | 3 | 3 | 17 | 6 | 3 | 3 | 3 | 16 | 3 | 3 | — | — | 2 | 21 | 1 | — | 2 | 22 |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | W 11 | W 10 | S 13 | — | — | W 8 | W 8 | W 10 | SW 12 | — | — | — | S 11 | — | — | — | — | — |
| kJ | 2 | 1 | 2 | 2 | 3 | — | — | 1 | 1 | 8 | 5 | — | — | — | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | E 7 | ESE 5 | — | — | SSE 4 | ESE 4 | S 5 | SSW 6 | — | WSW 3 | WSW 7 | SW 7 | — | — | — | — | — | — |
| kJ | 286 | 252 | 113 | 51 | — | — | 6 | 15 | 29 | 77 | — | 3 | 99 | 65 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 211 | 180 | 28 | 25 | 20 | 25 | 36 | 185 | 185 | 25 | 0 | 19 | 191 | 386 | 44 | 191 | 7 | 516 | 516 | 513 |
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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