Surf Forecasts:
Caerhays surf forecast from 13 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 4PM (local time) - 1ft (0.3m), 10s period, WSW swell with 21 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 0.3m 10s and forecast to arrive on Thursday (Aug 13) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Aug 20) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 13th Aug) | 1ft (0.3m) 10s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Right then, let’s have a good look at what’s on offer for Caerhays. Straight up, it’s a frustrating picture. We’ve got a 16-day window here, but it's almost entirely flat and the conditions are just not playing ball. There’s a proper gap of poor surf running right through, with nothing worth paddling out for until we get to the very end of the period.
First thing to say is that the water’s sitting at about 66°, which is a touch warmer than normal for the time of year – a nice little bonus if you’re in, but you won’t be.
We start Thursday the 13th through to Sunday the 23rd of August with nothing but tiny dribble. Swell heights are hanging around 0.3ft to 1.0ft, with weak combined wave energy – we’re talking values between 1 and 27 – just no power behind it at all. Winds are a mixed bag, sometimes offshore, sometimes cross-off, but it doesn’t matter when there’s nothing to ride. That little bump of 2ft on Sunday the 23rd (energy 62) gets swallowed by onshore wind, making it a write-off for a proper surf.
Then we hit Monday the 24th and Tuesday the 25th – more of the same. Tiny waves, poor energy. In fact, on the Tuesday morning it goes glassy, but with only 0.3ft of swell on offer, it’s a stunning lake, not a surf break.
It isn’t until right at the back end of the forecast, Thursday the 27th of August, that we finally see something with a bit of life. The morning brings a 2ft swell out of the SSW, with a very short period of just 4 seconds. The combined energy is still only 25, so it’s weak, but it’s the most we’ve seen in weeks. The wind is a clean cross-off from the NE at 18 mph, so the surface will be clean. This is the only standout in the whole outlook, but it’s for experts only by the afternoon when the energy picks up to 52 and swell bumps to 2ft from the SSE. Still, with that period so short, the waves will be crumbly and lack punch. It’s the best of a bad bunch.
So, if you’re desperate for a paddle, keep your eye on Thursday the 27th for something small and clean at Caerhays, but don’t hold your breath for anything else. It’s a lean run.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 14°C on Sat night). Winds increasing (light winds from the NW on Thu night, fresh winds from the NNW by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Tue morning, min 16°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the W by Tue morning). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | S 12 | WSW 8 | W 7 | S 18 | S 18 | S 18 | S 19 | S 17 | S 17 | SW 5 | S 16 | S 16 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 23 | 21 | 10 | 9 | 7 | 6 | 19 | 6 | 3 | 12 | 1 | 6 | 7 | 6 | 7 | 5 | 6 | 7 | 5 | 5 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:36PM4.84m | 7:01AM4.56m | 7:17PM4.93m | 7:41AM4.60m | 7:56PM4.89m | 8:18AM4.55m | 8:34PM4.73m | 8:55AM4.41m | 9:11PM4.48m | 9:32AM4.20m | 9:50PM4.16m | 10:12AM3.94m | 10:33PM3.82m | ||||||||
Low Tide | 12:46PM-0.08m | 1:13AM-0.31m | 1:28PM-0.21m | 1:54AM-0.35m | 2:08PM-0.20m | 2:33AM-0.24m | 2:47PM-0.05m | 3:10AM-0.01m | 3:24PM0.21m | 3:46AM0.32m | 4:01PM0.55m | 4:21AM0.70m | 4:38PM0.92m | ||||||||
 | |  |  |  |  | | | | | | | | | | | | | | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 20 | 23 | 22 | 17 | 20 | 19 | 15 | 20 | 18 | 16 | 20 | 20 | 17 | 22 | 20 | 17 | 19 | 19 | 17 |
Feels °C | 23 | 22 | 20 | 23 | 20 | 15 | 15 | 14 | 11 | 18 | 13 | 14 | 21 | 16 | 16 | 18 | 16 | 14 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 8 | WSW 8 | WSW 7 | WSW 8 | W 8 | W 7 | W 7 | W 7 | W 7 | S 18 | S 16 | S 17 | S 17 | SW 5 | S 16 | S 16 | SW 6 |
| kJ | 23 | 21 | 10 | 9 | 7 | 6 | 5 | 6 | 1 | 1 | 1 | 1 | 1 | 6 | 5 | 5 | 6 | 7 | 5 | 5 | 7 |
Swell 2 Height (m) Direction Period (s) | ESE 5 | ESE 4 | — | S 11 | S 10 | S 13 | WSW 8 | S 12 | S 12 | WSW 8 | E 5 | — | S 18 | W 7 | S 19 | W 9 | — | S 17 | — | W 10 | S 15 |
| kJ | 4 | 2 | — | 2 | 2 | 3 | 19 | 3 | 3 | 12 | 1 | — | 6 | 1 | 7 | 2 | — | 6 | — | 2 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | S 13 | S 13 | — | — | — | — | — | — | S 18 | W 9 | — | — | — | — | — | — | — | W 10 |
| kJ | — | — | 2 | 3 | 3 | — | — | — | — | — | — | 6 | 7 | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | NW 3 | — | — | — | NNW 2 | N 3 | N 3 | N 3 | — | NNW 2 | — | — | NW 2 | — | SW 3 | WSW 3 | WNW 3 | W 3 | W 3 | — |
| kJ | — | 2 | — | — | — | 1 | 4 | 5 | 3 | — | 1 | — | — | 1 | — | 2 | 3 | 1 | 4 | 4 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 209 | 37 | 27 | 210 | 43 | 417 | 248 | 43 | 36 | 428 | 473 | 563 | 249 | 269 | 554 | 153 | 152 | 210 | 210 | 473 |
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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