Surf Forecasts:
Caerhays surf forecast from 12 Sep 2026:
- Most powerful swell: Saturday 19 Sep, 7AM (local time) - 4.5ft (1.3m), 6s period, SSW swell with 105 kJ wave energy.
Best Forecast Surf Conditions for Caerhays this week:
The most powerful waves expected at Caerhays in the next 16 days are 1.3m 6s and forecast to arrive on Saturday (Sep 19) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Sep 15) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sat 19th Sep) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Caerhays over the next 16 days.
The Lowdown
Alright folks, let's talk Caerhays. Looking at the next 16 days, and I'll be straight with you – there's nothing happening. We're looking at a long, flat stretch.
Starting Saturday the 12th, it's a total dud. A tiny 0.3ft to 2ft swell from the south, but the wind is all wrong and it's choppy. The energy is feeble (9 to 13), and the water is a touch warmer than normal at 64°F.
Sunday the 13th and Monday the 14th are the same sorry tale – less than a foot of cross-shore slop. Tuesday the 15th gets a clean cross-offshore breeze, but you'd be lucky to find a ripple over 0.7ft. It's a good day to decide you're a photographer.
From there it's just a long, flat grind. Wednesday the 16th through to Saturday the 26th is all under 3ft, and most days it's barely a foot. The wind is messy for the few days where the swell even breathes a little, like on Sunday the 20th when a 3ft to 3ft south-west swell gets chopped up by a cross-onshore wind. Even the glassy conditions on Tuesday the 22nd are on a 0.3ft wave.
The optimum direction for Caerhays is a south-southwest swell, but we're mostly getting south-west and west-southwest pulses on a tiny scale. The combined swell energy never gets out of the weak range. There isn't a single session I can recommend. The board stays in the car. Rusty.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 22°C on Mon morning, min 17°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 17°C on Tue morning, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | S 15 | SW 4 | W 11 | WSW 11 | SW 10 | SW 10 | SW 9 | WSW 9 | WSW 8 | SW 8 | WSW 7 | WSW 8 | WSW 11 | WSW 11 | WSW 11 | SW 6 | SW 7 | SW 6 | WSW 13 | WSW 13 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 11 | 9 | 22 | 52 | 25 | 14 | 8 | 7 | 10 | 5 | 13 | 22 | 24 | 11 | 9 | 11 | 5 | 17 | 17 | 17 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on |
High Tide | 6:51PM4.89m | 7:10AM4.69m | 7:24PM4.84m | 7:42AM4.66m | 7:58PM4.69m | 8:14AM4.52m | 8:31PM4.44m | 8:47AM4.31m | 9:05PM4.13m | 9:23AM4.02m | 9:43PM3.79m | 10:04AM3.70m | 10:32PM3.44m | ||||||||
Low Tide | 1:06PM-0.20m | 1:28AM-0.30m | 1:43PM-0.19m | 2:03AM-0.18m | 2:19PM-0.05m | 2:37AM0.06m | 2:53PM0.20m | 3:10AM0.37m | 3:27PM0.51m | 3:42AM0.73m | 4:01PM0.87m | 4:16AM1.09m | 4:38PM1.24m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | |  | |
 | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 7:40 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:31 | — | — | 7:29 | — | — | 7:27 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 2 |
Temp °C | 19 | 20 | 18 | 19 | 19 | 19 | 22 | 21 | 18 | 17 | 16 | 16 | 15 | 16 | 16 | 16 | 15 | 15 | 18 | 17 | 17 |
Feels °C | 15 | 17 | 16 | 18 | 20 | 20 | 21 | 19 | 17 | 13 | 10 | 12 | 11 | 10 | 12 | 10 | 9 | 10 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 11 | WSW 11 | S 13 | SW 10 | SW 9 | WSW 9 | WSW 8 | SW 8 | WSW 7 | WSW 8 | WSW 11 | WSW 11 | WSW 6 | SW 6 | SW 7 | SW 6 | SW 6 | WSW 13 | W 12 |
| kJ | 2 | 2 | 9 | 22 | 3 | 25 | 14 | 8 | 7 | 10 | 5 | 13 | 22 | 24 | 4 | 9 | 11 | 5 | 6 | 17 | 3 |
Swell 2 Height (m) Direction Period (s) | — | S 15 | — | S 13 | SW 13 | S 13 | S 12 | S 12 | S 12 | W 11 | W 11 | SW 10 | — | — | WSW 11 | W 10 | W 10 | W 10 | WSW 13 | — | S 16 |
| kJ | — | 4 | — | 3 | 7 | 3 | 3 | 3 | 3 | 2 | 2 | 4 | — | — | 11 | 2 | 2 | 2 | 17 | — | 5 |
Swell 3 Height (m) Direction Period (s) | S 15 | — | — | — | — | — | — | — | W 12 | S 11 | SW 4 | — | — | — | — | — | — | S 13 | — | — | S 12 |
| kJ | 4 | — | — | — | — | — | — | — | 3 | 2 | 1 | — | — | — | — | — | — | 3 | — | — | 3 |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 4 | SW 4 | SW 4 | SW 10 | — | — | SSW 2 | SSW 3 | WNW 2 | WNW 3 | NW 3 | NW 3 | NW 3 | — | — | WNW 3 | WNW 2 | — | SW 2 | SW 4 |
| kJ | 5 | 11 | 9 | 3 | 52 | — | — | 1 | 1 | 1 | 3 | 2 | 2 | 3 | — | — | 3 | 1 | — | 2 | 17 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 180 | 191 | 27 | 91 | 31 | 27 | 27 | 27 | 26 | 160 | 153 | 75 | 153 | 75 | 191 | 191 | 210 | 210 | 27 | 218 | 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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