Surf Forecasts:
Port Isaac surf forecast from 26 Aug 2026:
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 10ft (3.0m), 9s period, W swell with 1,367 kJ wave energy.
Best Forecast Surf Conditions for Port Isaac this week:
The most powerful waves expected at Port Isaac in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 31) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Aug 28) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Mon 31st Aug) | 10ft (3.0m) 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 the cards for our little corner of the world. I’m not gonna lie, the first week and a half is a proper write-off for any decent surf. From Wednesday the 26th of August all the way through to Friday the 4th of September, the conditions are just not playing ball. We’re looking at a solid ten-day gap where the surf is either tiny, blown out, or just messy. The wind is a constant problem, and the few bumps we get are too weak and poorly shaped to bother with. It’s a tough stretch, but that’s the way it goes sometimes.
The only real glimmer of hope, and I mean the only one, shows up on Saturday the 5th of September. After all that garbage, we finally get a brief window of something special. Port Isaac is the spot, and it’s the standout by a mile. The morning has a clean, 6ft swell rolling in from the west with a long period of 11 seconds, giving it some proper grunt. The combined energy is strong at 676, so you can feel the push. But the real magic happens in the afternoon. The wind drops to a glassy calm from the north-northwest, and the wave comment even says “glassy.” That is a rare treat. The swell settles to a still-solid 5ft from the west, but with those clean conditions, it’s going to be a dream. The period is still long, which means those waves will have shape and power, perfect for the points and reefs around here. Just keep in mind, the crowds are listed as “sometimes,” so you might have some company for the good ones.
Beyond that Saturday, the outlook turns grim again. Sunday the 6th is back to strong, onshore winds and messy surf. The following week into mid-September offers nothing worth paddling out for – small, weak, and wind-affected swells. So, if you’ve got any chance, make that Saturday the 5th your target. It’s a brief, beautiful window of clean, powerful surf in an otherwise barren forecast.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Fri night. Warm (max 22°C on Wed morning, min 16°C on Thu night). Winds increasing (light winds from the ESE on Wed afternoon, fresh winds from the SSW by Fri night). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Sun afternoon. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Winds decreasing (strong winds from the SW on Sat morning, light winds from the SW by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | W 8 | W 8 | W 8 | W 7 | W 8 | W 8 | W 6 | W 7 | W 7 | WSW 7 | WSW 8 | W 10 | W 9 | WSW 9 | W 9 | W 9 | W 10 | W 10 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 36 | 32 | 18 | 10 | 12 | 22 | 126 | 168 | 127 | 202 | 446 | 1060 | 382 | 463 | 1367 | 1098 | 724 | 347 | 336 | 266 | 169 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-off | cross | cross-on | cross-on |
High Tide | 5:37PM6.05m | 5:55AM6.06m | 6:11PM6.48m | 6:28AM6.43m | 6:43PM6.82m | 7:00AM6.71m | 7:15PM7.05m | 7:32AM6.88m | 7:48PM7.14m | 8:06AM6.92m | 8:22PM7.07m | 8:41AM6.82m | 8:59PM6.85m | ||||||||
Low Tide | 11:33AM1.35m | 11:55PM1.09m | 12:07PM0.94m | 00:28AM0.71m | 12:39PM0.61m | 00:59AM0.42m | 1:10PM0.38m | 1:30AM0.25m | 1:42PM0.26m | 2:02AM0.21m | 2:14PM0.28m | 2:34AM0.32m | 2:48PM0.44m | 3:09AM0.57m | |||||||
 |  |  | |  |  |  | |  |  | | | | |  | | | | | | | |
 | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — |
 | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:05 | — |
mm | — | — | 3 | — | 1 | — | 1 | 1 | 6 | 2 | 1 | — | 1 | 3 | 2 | — | — | 2 | 2 | — | — |
Temp °C | 22 | 22 | 19 | 20 | 19 | 17 | 18 | 18 | 18 | 19 | 18 | 17 | 19 | 18 | 16 | 17 | 17 | 16 | 18 | 17 | 16 |
Feels °C | 20 | 20 | 18 | 18 | 17 | 16 | 14 | 15 | 13 | 13 | 11 | 12 | 14 | 12 | 10 | 14 | 13 | 13 | 14 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 7 | W 8 | W 8 | — | — | W 7 | — | — | — | W 9 | — | — | — | W 10 | W 10 | W 18 | W 8 | W 8 |
| kJ | 36 | 32 | 18 | 10 | 12 | 22 | — | — | 127 | — | — | — | 382 | — | — | — | 724 | 347 | 6 | 266 | 169 |
Swell 2 Height (m) Direction Period (s) | SW 8 | S 7 | — | W 11 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — | NNW 5 | — | W 18 | W 16 |
| kJ | 2 | 1 | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | W 13 | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 7 | WSW 3 | W 6 | W 7 | — | WSW 7 | WSW 8 | W 10 | SW 3 | WSW 9 | W 9 | W 9 | — | — | W 8 | — | — |
| kJ | — | — | — | — | 7 | 5 | 126 | 168 | — | 202 | 446 | 1060 | 5 | 463 | 1367 | 1098 | — | — | 336 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 229 | 393 | 310 | 62 | 62 | 288 | 424 | 4 | 550 | 272 | 39 | 228 | 371 | 776 | 125 | 14 | 14 | 227 | 310 | 113 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
Nearest