Surf Forecasts:
Caerhays surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7AM (local time) - 2ft (0.6m), 11s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 4AM (local time) - 6ft (1.8m), 9s period, W swell with 553 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 7AM (local time) - 2ft (0.6m), 11s period with SW 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 Tuesday (Sep 08) at 7AM. The primary swell is predicted to be 0.6m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Caerhays in the next 16 days are 1.8m 9s and forecast to arrive on Friday (Sep 11) 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 0.6m 3s period and expected on Tuesday (Sep 08) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 8th Sep) | 2ft (0.6m) 11s |
| Best Surf | 7AM (Tue 8th Sep) | 2ft (0.6m) 11s |
| Most Powerful | 4AM (Fri 11th Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you—this is one of those forecasts where you’re better off finding something else to do for a while. The whole 16-day window for Caerhays is a write-off. We’re looking at a long, flat spell.
The first hint of any rideable surf won’t show up until the middle of the month, and even then it’s tiny. For the first week, from Monday the 7th right through to Sunday the 13th, the swell is just a dribble—mostly below 2 ft, with the combined energy barely getting into double digits. You’ll see some clean conditions with offshore or cross-off winds on the 8th, 9th, and 11th, but there’s nothing to push you down the line.
The most notable event in the entire run happens on Wednesday the 9th of September. There’s a pulse of 3 ft swell out of the WSW with a period of 9 seconds, giving us a combined energy reading of 147 (moderate). The wind is a light NNW at 9 mph, which is cross-offshore and clean. That’s the best looking window, but with a height under 3 ft, it’s not going to get the heart racing. It’s a small, clean shoulder-high day, if you’re being generous. Still, it’s the most you’re going to get.
After the 9th, it’s back to tiny scraps. We get a few more clean days with offshore flow, especially on the 11th, 13th, and the mornings of the 15th and 16th, but the swell heights are pathetic—mostly 0.3 ft to 1 ft, with combined energy figures like 28, 16, even as low as 3 and 4 towards the middle of the month. That’s about as flat as it gets.
Then, from the 17th of September right through to the 22nd, the wind swings into the ESE and SE, turning onshore and chopping up the weak, short-period junk. Nothing worth paddling out for. The combined energy stays under 35 for the whole period. This is a blank run that’s pretty normal for the area when the settings aren’t right.
Water temperature on the 7th is 64°F which is a touch warmer than normal for the time of year—a bit of a novelty, but not much use without a wave to surf.
So, if you’re hanging for a surf, keep an eye on the 9th of September. It’s your one and only shot, and it’s only for beginners or longboarders looking for a cruise. Otherwise, I’d save the energy. The surf just isn’t here this time.
Stay salty.
Rusty
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Very mild (max 18°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the NW on Tue morning, calm by Wed night). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Sat night. Very mild (max 18°C on Fri morning, min 13°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the SW by Sat afternoon). | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | SW 13 | SW 12 | SW 11 | WSW 10 | SW 8 | WSW 9 | WSW 8 | WSW 8 | W 12 | W 11 | SSW 4 | SW 8 | SW 8 | SW 8 | W 15 | W 15 | SW 5 | SW 6 | SW 6 | SW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 132 | 112 | 55 | 19 | 18 | 124 | 76 | 6 | 11 | 9 | 12 | 24 | 17 | 9 | 5 | 5 | 10 | 11 | 8 | 7 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | cross |
High Tide | 3:29AM3.66m | 3:57PM4.02m | 4:33AM3.95m | 4:52PM4.35m | 5:21AM4.24m | 5:37PM4.63m | 6:01AM4.47m | 6:15PM4.82m | 6:37AM4.63m | 6:51PM4.89m | 7:10AM4.69m | 7:24PM4.84m | ||||||||
Low Tide | 9:32PM1.04m | 10:01AM0.97m | 10:37PM0.62m | 10:58AM0.56m | 11:28PM0.21m | 11:45AM0.19m | 00:11AM-0.10m | 12:27PM-0.07m | 00:51AM-0.27m | 1:06PM-0.20m | 1:28AM-0.30m | 1:43PM-0.19m | 2:03AM-0.18m | |||||||
 |  |  |  |  |  | |  | | | | | | | |  |  | | | | |
 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — | — | 7:37 | — |
mm | — | 16 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | — | — | — |
Temp °C | 18 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 17 | 17 | 17 | 18 | 17 | 14 | 16 | 16 | 18 | 17 | 17 | 16 |
Feels °C | 14 | 13 | 9 | 9 | 11 | 13 | 12 | 13 | 13 | 13 | 14 | 16 | 13 | 13 | 12 | 12 | 16 | 14 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 13 | — | SW 11 | WSW 10 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 7 | W 11 | WSW 7 | SW 8 | SW 8 | SW 8 | WSW 7 | W 11 | S 4 | SW 6 | SW 6 | SW 6 |
| kJ | 132 | — | 55 | 19 | 18 | 23 | 10 | 6 | 5 | 2 | 5 | 24 | 17 | 9 | 5 | 2 | 1 | 11 | 8 | 7 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SSW 5 | SSW 7 | WSW 9 | WSW 8 | S 5 | W 12 | W 11 | WSW 10 | SW 10 | — | W 18 | W 11 | W 15 | W 10 | W 10 | W 10 | W 10 |
| kJ | — | — | — | 2 | 9 | 124 | 76 | 1 | 3 | 2 | 10 | 4 | — | 6 | 2 | 4 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 7 | — | — | — | W 13 | W 12 | W 11 | — | — | — | — | W 15 | S 15 | — | S 13 | S 13 | — |
| kJ | — | — | — | 1 | — | — | — | 3 | 11 | 9 | — | — | — | — | 4 | 4 | — | 3 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | SW 12 | — | NW 3 | NW 3 | — | — | — | SSW 2 | SSW 3 | SSW 4 | — | — | — | — | SW 3 | SW 5 | WNW 2 | WNW 2 | NNW 3 |
| kJ | — | 112 | — | 8 | 2 | — | — | — | 1 | 3 | 12 | — | — | — | — | 5 | 10 | 1 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 27 | 31 | 210 | 19 | 8 | 20 | 25 | 29 | 180 | 27 | 31 | 19 | 25 | 26 | 191 | 210 | 43 | 43 | 27 |
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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