Surf Forecasts:
Caerhays surf forecast from 4 Aug 2026:
- Most powerful swell: Tuesday 4 Aug, 4PM (local time) - 2.5ft (0.8m), 7s period, SSW swell with 59 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 7s and forecast to arrive on Tuesday (Aug 04) at 4PM. 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 | 4PM (Tue 4th Aug) | 2.5ft (0.8m) 7s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for the Caerhays region.
To be straight with you, the next 16 days are a real struggle. We’re looking at a long, dry spell with no proper surf on offer. The data shows nothing but tiny, weak waves from start to finish, with the combined swell energy barely scraping double digits for most of the run. It’s not a case of waiting for a pulse; the pulse just isn't there.
The first faint sign of anything is on Monday, 3rd of August, with a tiny 0.7ft swell from the WSW, but with a poor 8-second period and a weak combined energy of just 8, it's a non-starter. The wind is onshore, so it’s a straight-up miss. The water temperature is sitting at 66°F, which is a touch warmer than normal for the time of year, but that’s about the only thing going for the coast.
The rest of that first week and into the second is more of the same. We see a few small windows of clean conditions with cross-offshore winds, like on the Wednesday morning of the 5th, but the swell is only 2ft. The energy is weak (33), and the period is a short 6 seconds. It’s a total flat spell.
The only real standout, and I use that word loosely, is the potential for a very clean, glassy session on the 7th of August. The wind is set to drop to zero, but the wave height is a pathetic 0.3ft. The swell period is a very long 12 seconds, which at a beach break like Caerhays can mean those long-period lines just stand up and close out, but for a point or reef you’d be in luck. It’s still too small to ride.
The whole 16-day window is a write-off for any decent paddle surfing. The consistent lack of swell energy and the tiny wave heights mean there’s nothing to recommend.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 21°C on Mon afternoon, min 15°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sun morning, min 14°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 8 | WSW 8 | SW 7 | SSW 7 | SW 6 | SW 6 | SSW 6 | S 13 | SW 6 | S 12 | S 12 | S 12 | S 12 | S 12 | S 13 | S 13 | S 12 | S 12 | S 15 | S 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 7 | 6 | 53 | 59 | 42 | 20 | 15 | 4 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 4 | 3 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | off | cross | cross-on | off | cross | cross-on | cross-off |
High Tide | 8:59PM4.50m | 9:20AM4.22m | 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 | |||||||
Low Tide | 3:47AM0.25m | 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 | ||||||||
 |  | |  |  | |  | | | | | | | | | | | | |  | |
 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 9:00 | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:52 | — | — | 8:50 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 21 | 21 | 17 | 19 | 18 | 16 | 18 | 17 | 15 | 17 | 18 | 16 | 19 | 21 | 18 | 23 | 24 | 23 |
Feels °C | 20 | 18 | 18 | 17 | 14 | 14 | 12 | 12 | 13 | 12 | 13 | 14 | 15 | 14 | 17 | 19 | 14 | 20 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | S 15 | S 15 | SW 6 | SW 6 | SSW 6 | SSW 6 | SW 6 | SSW 5 | SW 5 | SW 5 | SW 5 | S 12 | S 13 | S 13 | W 7 | SW 7 | SW 6 | W 6 |
| kJ | 7 | 6 | 4 | 4 | 42 | 20 | 15 | 3 | 5 | 3 | 1 | 1 | 1 | 3 | 3 | 3 | 1 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | E 6 | — | S 15 | SW 15 | — | WSW 7 | S 13 | WSW 6 | S 12 | S 12 | S 12 | S 12 | S 12 | — | S 11 | S 11 | S 12 | S 12 | S 12 | S 12 |
| kJ | 3 | — | 4 | 8 | — | 10 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | — | 2 | 2 | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 13 | S 13 | S 13 | W 10 | W 10 | W 10 | — | — | W 9 | S 13 | S 13 | SW 12 | SW 12 | S 15 | S 12 |
| kJ | — | — | — | — | — | 3 | 3 | 3 | 2 | 2 | 2 | — | — | 2 | 3 | 3 | 6 | 6 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | ESE 3 | — | SW 7 | SSW 7 | WSW 3 | WNW 3 | W 3 | WNW 3 | NW 2 | NW 3 | — | — | — | — | — | — | — | — | — | NNW 3 |
| kJ | 1 | — | 53 | 59 | 3 | 3 | 5 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 25 | 27 | 443 | 191 | 275 | 210 | 191 | 160 | 430 | 219 | 428 | 443 | 428 | 227 | 41 | 46 | 36 | 36 | 29 | 41 |
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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