Surf Forecasts:
Port Isaac surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 7AM (local time) - 4ft (1.2m), 10s period, W swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 4AM (local time) - 8ft (2.4m), 9s period, W swell with 899 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7AM (local time) - 4ft (1.2m), 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 7AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.1m and 14s. 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 2.4m 9s and forecast to arrive on Tuesday (Sep 08) 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 0.7m 3s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 5th Sep) | 4ft (1.2m) 10s |
| Best Surf | 7AM (Sat 5th Sep) | 4ft (1.2m) 10s |
| Most Powerful | 4AM (Tue 8th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on offer. To be straight with you, this is a pretty grim stretch ahead for Port Isaac. The whole 16-day window is basically a write-off for any decent surf. There’s a massive gap from the start right through to the end, with only a couple of fleeting moments that are barely worth mentioning. The main issue is that the wind is almost always wrong – either a strong cross-shore or a choppy cross-onshore – and the swell is either too small or too messy to do anything with.
The first hint of anything even close to surfable comes on the morning of Saturday the 5th of September. The swell is a weak 4ft from the west at 10 seconds, with a combined energy of 249 (moderate). The wind goes glassy, which is a huge positive and will make the water look like a mirror. But the waves are described as “very ordinary” – basically, you’ll be scratching around for anything rideable. It’s a beginner-friendly 4ft, but don’t expect much.
Then, after a long run of junk, the morning of Saturday the 12th of September offers a slight glimmer. Swell drops right back to 3ft from the west at 8 seconds (weak energy of 84), but with a light cross-offshore wind from the southwest, it’ll be clean. Again, it’s “surfable but very ordinary.” That’s about as good as it gets.
The standout, if you can call it that, is that Saturday the 5th morning. The glassy conditions are a real treat, and the 4ft west swell is the biggest you’ll see with any kind of clean wind. The water temperature is 65°, which is a touch warmer than normal for this time of year, so that’s a small comfort. Don’t expect any crowds – the conditions are so poor that most people won’t bother.
Honestly, for the rest of the period, it’s a total write-off. Strong winds, onshore chop, and tiny swell. This setup looks more interesting for kite surfing than paddle surfing on most days. The long-range stuff in the second week is even worse – tiny waves and howling winds. It’s a blank run, and it’s not unusual for this area when the patterns lock in like this.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu night, min 14°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, calm by Fri night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Warm (max 21°C on Sun morning, min 15°C on Mon night). Winds increasing (calm on Sat afternoon, fresh winds from the W by Mon night). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
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) | WSW 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 10 | W 10 | W 10 | W 9 | W 8 | W 9 | W 10 | W 10 | W 9 | WNW 9 | WNW 10 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 292 | 259 | 196 | 203 | 333 | 481 | 403 | 311 | 245 | 164 | 90 | 40 | 35 | 282 | 524 | 867 | 828 | 724 | 627 | 438 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-off | cross-on | cross-on | cross-on | glassy | cross | off | off | off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:39PM6.48m | 10:01AM6.20m | 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 | ||||||||
Low Tide | 3:49AM0.95m | 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 | ||||||||
 |  | |  | | | | | | | | | | |  | |  |  | | | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — |
 | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 2 |
Temp °C | 19 | 18 | 19 | 19 | 20 | 17 | 17 | 15 | 17 | 17 | 16 | 21 | 21 | 17 | 17 | 17 | 15 | 16 | 16 | 15 |
Feels °C | 15 | 15 | 17 | 15 | 16 | 14 | 13 | 12 | 16 | 15 | 14 | 16 | 17 | 17 | 13 | 12 | 10 | 10 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | — | W 15 | W 8 | SW 16 | — | W 15 | SW 14 | W 9 | W 10 | W 10 | W 10 | W 9 | W 8 | — | W 10 | — | — | — | — | — |
| kJ | — | 4 | 196 | 9 | — | 4 | 8 | 311 | 245 | 164 | 90 | 40 | 35 | — | 524 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | SW 15 | — | — | — | — | W 15 | W 14 | NNW 4 | — | — | W 13 | — | W 12 | — | — | — | — | — |
| kJ | — | — | 9 | — | — | — | — | 4 | 4 | 2 | — | — | 3 | — | 138 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 14 | — | W 13 | W 13 | W 13 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | — | 3 | 3 | 3 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 7 | W 8 | — | W 8 | W 8 | W 8 | W 8 | — | — | — | — | S 3 | SW 3 | W 9 | — | W 10 | W 9 | WNW 9 | WNW 10 | WNW 8 |
| kJ | 292 | 259 | — | 203 | 333 | 481 | 403 | — | — | — | — | 11 | 2 | 282 | — | 867 | 828 | 724 | 627 | 438 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 227 | 227 | 14 | 221 | 258 | 203 | 249 | 38 | 0 | 14 | 0 | 76 | 201 | 14 | 125 | 520 | 315 | 262 | 309 | 227 |
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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