Surf Forecasts:
Caerhays surf forecast from 7 Sep 2026:
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 2ft (0.6m), 14s period, SW swell with 169 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 0.6m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Sep 08) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Mon 7th Sep) | 2ft (0.6m) 14s |
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 coming up for Caerhays. I’ve got to be straight with you – this is a tough one. The next 16 days are looking pretty bleak for a proper paddle. We’ve got a long stretch of tiny, weak swell and poor conditions, so don’t get your hopes up for anything decent until well into the second week.
The water temp is sitting at about 64°, which is a touch warmer than normal for this time of year, so at least the wait won’t be too chilly.
The first real glimmer of anything surfable doesn’t show up until Wednesday the 16th of September. That morning, we’ve got a 4ft swell from the SW, with a period of 7 seconds. The combined energy is moderate at 116. The wind is a light cross-offshore from the NNW, keeping things clean. It’s surfable, but honestly, it’s very ordinary. The swell is short-period and small, so don’t expect much power. This is your best bet for a weak, grovelly session.
Then, on Sunday the 20th of September, the afternoon shows a 5ft swell from the SSW with a 6-second period. The combined energy is moderate at 139. The wind is a gentle cross-offshore from the WNW, so it’ll be clean. This is the biggest swell of the whole outlook, but the period is short, so it’s going to be a bit soft and lumpy. Again, it’s surfable but very ordinary. If you’re desperate, this is the one to look at, but it’s nothing to write home about.
For beginners, the swell on the 20th is right at 5ft, which is pushing the limit. It might be a bit much for a learner, especially with the short, weak period. For experts, there’s nothing here that’s going to get your heart racing.
The rest of the days are a write-off. Tiny waves, onshore winds, or poor conditions. The gaps between any real surf are huge – we’re talking days and days of nothing. The overall pattern is a long, flat, and frustrating run. It’s one of those periods where the forecast can change, but right now, it’s not looking good for a paddle.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Very mild (max 19°C on Sun afternoon, min 14°C on Mon night). Winds increasing (light winds from the WSW on Sun night, fresh winds from the WNW by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Fri morning, min 15°C on Wed afternoon). Wind will be generally light. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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) | SSE 4 | SW 16 | WSW 13 | WSW 13 | WSW 12 | SW 11 | SW 10 | SW 8 | SW 8 | WSW 8 | WSW 8 | SW 4 | SSW 4 | SSW 5 | WSW 10 | WSW 8 | SW 8 | SSW 4 | WSW 5 | SW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 12 | 41 | 118 | 109 | 55 | 71 | 24 | 31 | 17 | 75 | 58 | 9 | 26 | 20 | 18 | 7 | 9 | 9 | 19 | 9 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross | cross-on | cross-on | cross |
High Tide | 2:05AM3.48m | 2:45PM3.72m | 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 | ||||||||
Low Tide | 8:02PM1.30m | 8:44AM1.30m | 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 | |||||||
 |  | | |  |  | |  | | |  |  | | | | | | | |  | |
 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — |
 | 7:53 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — |
mm | — | — | — | — | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 19 | 18 | 17 | 18 | 15 | 16 | 16 | 15 | 17 | 17 | 16 | 16 | 18 | 17 | 19 | 19 | 16 | 19 | 20 | 18 |
Feels °C | 17 | 18 | 13 | 14 | 12 | 11 | 8 | 10 | 13 | 13 | 13 | 12 | 14 | 16 | 16 | 16 | 16 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | W 8 | SW 16 | WSW 13 | WSW 13 | WSW 12 | SW 11 | SW 10 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | W 11 | WSW 8 | SSW 5 | SSW 5 | SW 8 | W 8 | S 4 | SSW 4 |
| kJ | 1 | 41 | 118 | 109 | 55 | 71 | 24 | 31 | 17 | 10 | 9 | 2 | 2 | 6 | 10 | 4 | 9 | 1 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | S 13 | SE 4 | SSW 4 | — | — | — | S 11 | — | — | WSW 8 | W 13 | — | — | WSW 10 | WSW 10 | WSW 8 | — | W 10 | W 10 | SW 6 |
| kJ | 3 | 2 | 3 | — | — | — | 2 | — | — | 75 | 3 | — | — | 10 | 18 | 7 | — | 2 | 2 | 9 |
Swell 3 Height (m) Direction Period (s) | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 10 |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 2 |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSW 4 | WNW 2 | — | SW 5 | NW 2 | WNW 3 | WNW 3 | NW 3 | WNW 2 | WSW 8 | SW 4 | SSW 4 | SSW 5 | — | — | — | SSW 4 | WSW 5 | — |
| kJ | 12 | 4 | 1 | — | 14 | 1 | 4 | 3 | 2 | 1 | 58 | 9 | 26 | 20 | — | — | — | 9 | 19 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 46 | 27 | 19 | 31 | 27 | 75 | 275 | 210 | 43 | 180 | 27 | 428 | 187 | 31 | 153 | 27 | 26 | 218 | 191 | 31 |
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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