
Surf Forecasts:
Caerhays surf forecast from 3 Sep 2026:
- Most powerful swell: Monday 7 Sep, 4PM (local time) - 2.5ft (0.7m), 12s period, SW swell with 149 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 0.7m 12s and forecast to arrive on Monday (Sep 07) at 4PM. 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 Thursday (Sep 10) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Mon 7th Sep) | 2.5ft (0.7m) 12s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – it’s a tough run ahead for the Caerhays area. There’s a proper 16-day window here, but honestly, it’s a long stretch of nothing special. The good news is there’s a couple of moments that might just save the trip, but you’ve got to be patient.
The overall pattern is small, weak, and mostly wind-affected. For the first week, we’re looking at tiny waves and a lot of onshore or cross-shore wind. The water’s sitting at 64°F on the Thursday morning, which is a touch warmer than normal for this time of year, so that’s a tiny silver lining.
The first real chance to get wet doesn’t come until Monday, September 7th. That morning, a pulse of groundswell swings in from the WSW with a wave height of 2ft and a period of 13 seconds. The combined energy climbs to 114 (moderate), and with a cross-off wind from the NW at 19 mph, the conditions are clean. It’s small, but it’s got that long-period push that’ll make it feel more powerful than the height suggests. The afternoon holds similar energy at 157 (moderate), with 2ft SSW swell and a 12-second period, still clean under a cross-off WNW breeze. This is the best run of the whole outlook.
Tuesday, September 8th, is a bit of a hangover. The swell drops to 1ft and 2ft, with clean conditions but very little energy (30 and 45). The period is still decent (8-10 seconds), but it’s a big step down from Monday.
The second week is bleak. From Wednesday, September 9th, through to Friday, September 18th, the swell barely flickers. The heights are mostly 0.3ft to 1ft, with wave energy in the single digits or low teens. There’s a few glassy mornings (like the 5th, 15th, and 16th) but with next to no swell, it’s flat. The 14th offers a morning of clean, offshore wind from the N at 6 mph, but the swell is only 0.7ft with a long period of 11 seconds – that’s a lake, not a surf.
The one standout in the whole 16 days is Monday, September 7th. It’s the only day where the combined energy (114 and 157) and the clean conditions come together. The swell is small, but the quality of the wave face will be good. For a break like Caerhays that’s inconsistent, catching a day like this is a win. Expect crowds to be possible.
Given the size never breaks 5ft, it’s fine for all levels, but don’t expect a big wave session. The long period on Monday (13 seconds) is a groundswell, which can sometimes make beach breaks a bit too straight, but for Caerhays, it’ll be just fine.
Bottom line: Save your energy for Monday, September 7th. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 15°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat morning). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Very mild (max 19°C on Sun afternoon, min 12°C on Mon night). Winds increasing (light winds from the S on Sun afternoon, fresh winds from the NNW by Mon night). | ||||||||||||||||||||
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 | SSW 5 | SW 6 | SSW 5 | SW 5 | WSW 13 | SW 7 | WSW 10 | SE 4 | SE 5 | SSW 5 | WSW 13 | SW 12 | SW 11 | SW 8 | SW 10 | SW 8 | SW 6 | WSW 4 | SW 5 |
Wave Graph | |||||||||||||||||||||
23 | 30 | 37 | 20 | 16 | 10 | 17 | 8 | 10 | 32 | 26 | 10 | 113 | 149 | 94 | 20 | 45 | 15 | 8 | 8 | 60 | |
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 | on | cross | cross-on | cross-on | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-on | cross |
High Tide | 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 | 4:24PM0.54m | 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 | — | — | — | 2 | — | — | — | — | — | 9 |
Temp °C | 21 | 20 | 20 | 18 | 17 | 15 | 16 | 17 | 16 | 18 | 19 | 17 | 17 | 18 | 17 | 16 | 17 | 16 | 17 | 17 | 18 |
Feels °C | 19 | 17 | 16 | 15 | 12 | 12 | 14 | 15 | 14 | 15 | 17 | 17 | 13 | 14 | 13 | 10 | 11 | 12 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | SSW 15 | SW 15 | SW 6 | SSW 5 | SW 5 | SW 7 | SW 7 | WSW 10 | W 10 | SE 5 | SSW 5 | WSW 13 | SW 12 | SW 11 | SW 8 | SW 10 | SW 8 | SW 6 | S 10 | W 13 |
10 | 23 | 9 | 20 | 16 | 10 | 8 | 8 | 10 | 2 | 26 | 9 | 113 | 149 | 94 | 20 | 45 | 15 | 8 | 2 | 3 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 9 | — | S 5 | WSW 8 | WSW 10 | WSW 13 | S 13 | S 13 | S 13 | W 8 | SE 4 | S 4 | — | — | WSW 10 | — | — | — | — | — |
9 | 2 | — | 11 | 6 | 10 | 17 | 3 | 3 | 3 | 1 | 4 | 1 | — | — | 10 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 14 | SW 14 | SW 14 | SW 14 | W 12 | — | — | S 13 | SW 16 | — | — | — | — | — | — | — | — | — |
— | — | — | 8 | 8 | 8 | 7 | 3 | — | — | 3 | 10 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 5 | SSW 5 | WNW 2 | WNW 3 | WNW 2 | — | — | — | SE 4 | SSE 5 | WSW 2 | WNW 3 | WSW 4 | W 2 | WNW 3 | WNW 3 | WNW 3 | — | WSW 4 | SW 5 |
23 | 30 | 37 | 1 | 3 | 1 | — | — | — | 32 | 12 | 1 | 1 | 8 | 1 | 2 | 3 | 3 | — | 8 | 60 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 187 | 218 | 135 | 209 | 75 | 27 | 27 | 25 | 58 | 27 | 27 | 31 | 254 | 165 | 210 | 191 | 160 | 44 | 27 | 275 |
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.










