Surf Forecasts:
Port Isaac surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 7PM (local time) - 3ft (0.9m), 10s period, W swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 7ft (2.1m), 13s period, W swell with 1,475 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7PM (local time) - 3ft (0.9m), 10s period with W swell.
Best Forecast Surf Conditions for Port Isaac this week:
The surf forecast for Port Isaac over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 7PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.2m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Port Isaac in the next 16 days are 2.1m 13s and forecast to arrive on Monday (Sep 07) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Sep 07) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sat 5th Sep) | 3ft (0.9m) 10s |
| Best Surf | 7PM (Sat 5th Sep) | 3ft (0.9m) 10s |
| Most Powerful | 10AM (Mon 7th Sep) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the menu for Port Isaac over the next couple of weeks.
Straight up, I’ll be honest with you – this is a tough stretch. The first week and a half is pretty much a write-off. We’ve got a nasty run of poor surf conditions, and it’s not until the morning of Saturday the 12th of September that we finally see something worth paddling out for.
The water is sitting at 65°, which is a touch warmer than normal for this time of year, so at least the waiting won’t be too chilly.
For the first several days, from Thursday the 3rd through to Friday the 11th, the combo of strong onshore winds and messy, lumpy conditions makes it a no-go. You’ll see solid swell heights – there’s a 7ft on Monday the 7th with wave energy cracking 1430 – but it’s all cross-onshore chop. That one’s hefty too, over 8ft, so only for the experts anyway, and the wind just ruins it.
The real standout, the only one I’d get excited about, is the morning of Saturday the 12th. The forecast is calling for good surf conditions. We’re looking at a 4ft swell from the WNW with a period of 7 seconds, combined wave energy of 277. The wind is a light cross-offshore breeze from the SW, keeping things clean. It won’t be huge, but it’s the best quality we’ve got. This is a fairly consistent spot at Port Isaac, so it’s a good bet for a fun session.
There’s a glimmer of hope further out. The morning of Tuesday the 15th of September looks glassy, with a 4ft W swell and 9 second period, and the morning of Wednesday the 16th of September is also flat calm, glassy conditions with a 3ft W swell. But these are small swells and the energy is low (185 and 131 respectively), so they’re just ordinary, surfable waves. Nothing to write home about.
The rest of the outlook after Saturday the 12th is a mix of clean but small surf, or more onshore wind. It’s a long wait for that one decent window.
Keep it salty,
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 21°C on Sun morning, min 14°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat afternoon). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon night. Warm (max 21°C on Sun afternoon, min 13°C on Mon night). Winds increasing (light winds from the S on Sun afternoon, fresh winds from the W by Tue morning). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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) | W 8 | WSW 8 | W 8 | W 8 | W 8 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | W 13 | W 12 | W 10 | W 9 | W 10 | W 8 | W 8 | W 7 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 203 | 336 | 559 | 422 | 292 | 346 | 202 | 118 | 57 | 50 | 51 | 1475 | 1092 | 1043 | 854 | 813 | 441 | 367 | 348 | 323 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | off | off | off | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 10:27PM6.00m | 10:54AM5.74m | 11:27PM5.48m | 12:03PM5.32m | 00:50AM5.11m | 1:36PM5.17m | 2:28AM5.14m | 3:07PM5.46m | 3:48AM5.54m | 4:16PM6.01m | 4:46AM6.07m | 5:08PM6.58m | ||||||||
Low Tide | 4:10PM1.13m | 4:37AM1.42m | 5:08PM1.60m | 5:43AM1.89m | 6:30PM1.98m | 7:19AM2.14m | 8:17PM1.99m | 8:59AM1.96m | 9:44PM1.59m | 10:12AM1.47m | 10:45PM1.04m | 11:05AM0.94m | 11:34PM0.53m | |||||||
 |  |  |  |  |  | |  | | | | | |  | |  | | | |  | |
 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — |
 | 8:00 | — | — | 7:59 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 4 | — | 1 | — | — | — | 13 |
Temp °C | 19 | 20 | 17 | 16 | 15 | 16 | 16 | 15 | 21 | 21 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 17 | 17 | 17 |
Feels °C | 17 | 15 | 14 | 12 | 11 | 14 | 15 | 14 | 16 | 16 | 16 | 13 | 14 | 13 | 9 | 9 | 8 | 12 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 16 | — | W 15 | SW 14 | WNW 15 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | W 13 | — | — | — | — | WNW 10 | — | — | — |
| kJ | 9 | — | 4 | 8 | 22 | 346 | 202 | 118 | 57 | 50 | 51 | 1475 | — | — | — | — | 80 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 14 | W 14 | NNW 4 | — | W 13 | W 13 | W 16 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 4 | 2 | — | 3 | 3 | 21 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | WSW 8 | W 8 | W 8 | W 8 | — | — | — | SSE 3 | SSW 3 | WSW 4 | — | W 12 | W 10 | W 9 | W 10 | W 8 | W 8 | W 7 | W 8 |
| kJ | 203 | 336 | 559 | 422 | 292 | — | — | — | 2 | 4 | 16 | — | 1092 | 1043 | 854 | 813 | 441 | 367 | 348 | 323 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 221 | 207 | 86 | 249 | 86 | 14 | 14 | 0 | 21 | 41 | 0 | 116 | 227 | 203 | 568 | 250 | 258 | 258 | 26 | 254 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Port Isaac surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Port Isaac Surf forecast
The above surf forecast table for Port Isaac provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Port Isaac can be found by selecting the local surf guide option on the grey menu. Our Port Isaac 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 (Port Isaac) 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 Port Isaac 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.
Are you planning a holiday in North Cornwall? If you are looking for accommodation near Port Isaac, camping, hotels and holiday cottages in North Cornwall, consider staying in Padstow which is 8 km (5 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Bodmin which is 15 km (9 miles) away, Newquay, Par and Saint Austell.
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