Surf Forecasts:
Caerhays surf forecast from 3 Sep 2026:
- Most powerful swell: Monday 7 Sep, 10PM (local time) - 3.5ft (1.0m), 11s period, SW swell with 224 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 1.0m 11s and forecast to arrive on Monday (Sep 07) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Sep 08) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Mon 7th Sep) | 3.5ft (1.0m) 11s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here with the long-range look.
Well, I gotta be straight with ya – this 16-day window for our region is a tough one. We’ve got nothing but flat or junky conditions for the better part of two weeks. There’s one brief moment that shows a pulse, but it’s a long way off and you’ll need to be ready.
The whole outlook kicks off with a dud. The first week is basically a write-off. From the 2nd of September right through until the 10th, it’s all small, messy, and mostly blown out. You’ll see a bit of cross-offshore wind here and there, and even a glassy morning on the 5th, but the swell is just too tiny to bother with. The water temperature at Caerhays is sitting at 64°, which is a touch warmer than usual for this time of year, but that’s not going to help the waves.
Eventually, around the 11th of September, we finally get a real pulse. It’s a long-range hope, so don’t bank on it just yet, but the Friday morning session at Caerhays is the only thing worth circling on your calendar. We’re looking at a clean 5 ft groundswell, rolling in from the WSW with a solid 10-second period, and a moderate cross-offshore breeze out of the NNW. The combined energy is actually moderate at 388, which is the only real juice in the whole forecast. The waves should be holding shape on that SSW-exposed bank.
Now, the big caveat: that spot is inconsistent, so don’t expect a guaranteed party. And with crowds being listed as sometimes, there’s a fair chance you’ll have company when it’s good. After that Friday morning session, the window slams shut again. The rest of the forecast is small, windy junk, with a near-gale on the 16th blowing through. So, if you want a wave in the next 16 days, your one real shot is the morning of the 11th. Be there or be square.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 14°C on Fri night). Winds decreasing (fresh winds from the WSW on Thu night, calm by Sat morning). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 20°C on Sun afternoon, min 15°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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 5 | SW 5 | SW 5 | SW 6 | S 5 | SW 5 | WSW 13 | WSW 7 | SE 4 | SE 5 | SE 5 | SW 15 | SW 12 | SW 12 | SW 8 | WSW 10 | WSW 10 | SW 8 | WSW 8 | WSW 8 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 23 | 30 | 31 | 15 | 7 | 8 | 17 | 5 | 10 | 48 | 24 | 34 | 120 | 68 | 88 | 131 | 64 | 18 | 6 | 6 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-on |
High Tide | 9:32AM4.27m | 9:56PM4.16m | 10:24AM3.99m | 10:56PM3.80m | 11:36AM3.71m | 00:23AM3.52m | 1:12PM3.59m | 2:05AM3.48m | 2:45PM3.72m | 3:29AM3.66m | 3:57PM4.02m | 4:33AM3.95m | 4:52PM4.35m | ||||||||
Low Tide | 4:03AM0.37m | 4:24PM0.54m | 4:49AM0.72m | 5:17PM0.89m | 5:47AM1.08m | 6:26PM1.20m | 7:06AM1.34m | 8:02PM1.30m | 8:44AM1.30m | 9:32PM1.04m | 10:01AM0.97m | 10:37PM0.62m | 10:58AM0.56m | 11:28PM0.21m | |||||||
 |  |  | |  |  | | |  | | | | | |  | |  | | | |  | |
 | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 8:00 | — | — | 7:58 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | 7 |
Temp °C | 21 | 21 | 19 | 18 | 17 | 16 | 16 | 16 | 16 | 19 | 20 | 18 | 18 | 18 | 16 | 17 | 17 | 15 | 16 | 17 | 15 |
Feels °C | 19 | 18 | 17 | 15 | 13 | 14 | 14 | 14 | 12 | 15 | 19 | 17 | 13 | 12 | 11 | 11 | 11 | 10 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | SSW 15 | SW 15 | SW 6 | S 5 | SW 5 | SW 7 | WSW 7 | WSW 10 | S 13 | SE 5 | S 5 | SW 12 | SW 12 | — | — | WSW 10 | SW 8 | WSW 8 | WSW 8 | SW 7 |
| kJ | 10 | 23 | 9 | 15 | 7 | 6 | 8 | 5 | 10 | 3 | 24 | 11 | 120 | 68 | — | — | 64 | 18 | 6 | 6 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 9 | — | S 5 | SW 6 | W 10 | WSW 13 | W 12 | S 13 | W 8 | S 13 | ESE 4 | — | — | — | — | — | SW 10 | W 10 | — | — |
| kJ | 9 | 2 | — | 11 | 5 | 2 | 17 | 3 | 3 | 1 | 3 | 2 | — | — | — | — | — | 4 | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | S 9 | — | — | WSW 8 | WSW 8 | SW 14 | SW 14 | S 13 | — | W 10 | W 8 | SW 15 | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | 13 | 6 | 8 | 7 | 3 | — | 2 | 1 | 34 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 5 | SW 5 | NW 3 | WNW 3 | — | — | — | SE 4 | SE 5 | — | WSW 5 | WNW 3 | SW 3 | SW 8 | WSW 10 | WNW 3 | NW 3 | — | — | — |
| kJ | 23 | 30 | 31 | 2 | 2 | — | — | — | 10 | 48 | — | 11 | 1 | 7 | 88 | 131 | 6 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 191 | 218 | 209 | 209 | 31 | 25 | 25 | 25 | 180 | 180 | 210 | 218 | 486 | 7 | 533 | 191 | 75 | 43 | 184 | 44 |
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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