Surf Forecasts:
Caerhays surf forecast from 29 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 4AM (local time) - 7ft (2.1m), 9s period, WSW swell with 671 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 2.1m 9s and forecast to arrive on Sunday (Aug 30) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 29) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 30th Aug) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what we’ve got on the table for the next couple of weeks. I’ll be straight with you – this is a tough stretch. The whole 16-day window is a bit of a write-off for a proper paddle session at Caerhays. We’ve got one sniff of something, but the rest is pretty grim.
The pattern is weak and messy for ages. The first real shot of swell doesn’t come until around the 11th of September, and even that comes with some strong wind. Before that, we’re looking at a long, flat, and choppy wait. From the 29th of August right through to the 10th of September, there’s barely a wave worth paddling for. It’s a dead run, with tiny, wind-affected surf and a lot of cross-onshore junk.
The only standout, and I mean the *only* one worth mentioning, is Friday the 11th of September. That morning, we get a pulse of chest-high swell coming in at 6ft from the south. The energy jumps up to a solid moderate level (625). Problem is, the wind is swinging around to a fresh cross-shore from the WSW at 22 mph, which is going to chop things up and make it lumpy. That’s the biggest swell of the whole forecast, but it’s a messy one. That afternoon drops to 4ft from the south, still with that cross-shore wind.
For the rest of it, it’s a whole lot of nothing. The water temp is about average for this time of year. If you’re desperate, there’s a few tiny windows of clean conditions – like the morning of Monday the 7th of September, with 2ft from the SW and a moderate offshore wind from the north. But that’s ankle-to-knee-high at best, and with a period of 10 seconds, it’s a long-period groundswell that’ll be fat and slow. You might get a glide on a log, but don’t expect anything with push.
Honestly, if you’re thinking of heading down, the 11th of September morning is the only time the ocean is showing any real signs of life, but it’s more of a wind-blown mess than a classic. For a proper paddle, this is a blank spell. The setup looks more interesting for kite surfing than paddle surfing on the bigger days, with that strong cross-shore wind. Keep an eye on it, but don’t hold your breath.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Fri night. Warm (max 20°C on Sat morning, min 16°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed morning. Warm (max 20°C on Wed morning, min 15°C on Mon night). Winds increasing (light winds from the SW on Mon night, fresh winds from the SW by Wed morning). | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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) | SSW 7 | SW 9 | SSW 8 | SSW 7 | SSW 7 | SW 8 | WSW 10 | WSW 11 | SSW 6 | SW 6 | SW 6 | WSW 8 | SSW 4 | SW 5 | SSW 6 | SSW 6 | SSW 15 | WSW 7 | SW 5 | SW 4 | SW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 379 | 612 | 103 | 76 | 142 | 69 | 73 | 44 | 16 | 6 | 15 | 109 | 9 | 76 | 48 | 29 | 23 | 11 | 8 | 25 | 45 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross-off | cross | cross-on | cross-off | cross-off |
High Tide | 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 | 9:32AM4.27m | 9:56PM4.16m | 10:24AM3.99m | 10:56PM3.80m | |||||||
Low Tide | 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 | 4:03AM0.37m | 4:24PM0.54m | 4:49AM0.72m | 5:17PM0.89m | ||||||||
 |  |  |  | |  |  | | | | |  | | | | | |  |  |  | | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — |
mm | 4 | — | — | 3 | 2 | — | — | — | — | — | — | — | 2 | 1 | — | — | — | 1 | 5 | — | — |
Temp °C | 20 | 18 | 17 | 18 | 19 | 16 | 17 | 17 | 16 | 19 | 19 | 17 | 20 | 19 | 18 | 19 | 18 | 17 | 16 | 17 | 16 |
Feels °C | 15 | 11 | 14 | 13 | 13 | 10 | 12 | 13 | 15 | 16 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | SSW 8 | WSW 8 | W 10 | SSW 6 | WSW 10 | SSW 7 | SSW 6 | SW 6 | S 17 | SW 5 | S 16 | S 15 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SW 5 | SW 14 | SW 14 |
| kJ | — | — | 103 | 14 | 2 | 50 | 73 | 25 | 16 | 6 | 6 | 6 | 5 | 5 | 48 | 29 | 12 | 5 | 7 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 9 | — | — | SW 8 | SSW 6 | WSW 11 | WSW 10 | SSW 5 | S 17 | S 16 | W 8 | — | SW 7 | SW 8 | WSW 8 | WSW 7 | SW 14 | — | W 10 |
| kJ | — | — | 47 | — | — | 69 | 20 | 44 | 10 | 3 | 6 | 5 | 1 | — | 11 | 15 | 11 | 11 | 8 | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WSW 11 | — | — | — | W 9 | — | W 8 | — | — | S 15 | SW 15 | SSW 15 | SW 15 | W 10 | — | — |
| kJ | — | — | — | — | — | 11 | — | — | — | 1 | — | 1 | — | — | 4 | 9 | 23 | 9 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 7 | SW 9 | — | SSW 7 | SSW 7 | W 3 | WNW 3 | WNW 3 | — | — | SW 6 | WSW 8 | SSW 4 | SW 5 | WSW 7 | W 2 | W 3 | WNW 2 | — | SW 4 | SW 5 |
| kJ | 379 | 612 | — | 76 | 142 | 5 | 4 | 2 | — | — | 15 | 109 | 9 | 76 | 43 | 1 | 2 | 1 | — | 25 | 45 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 264 | 191 | 27 | 91 | 516 | 165 | 148 | 157 | 26 | 27 | 27 | 26 | 40 | 191 | 285 | 745 | 191 | 239 | 27 | 19 | 165 |
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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