
Surf Forecasts:
Port Isaac surf forecast from 4 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, 7AM (local time) - 6.5ft (2.0m), 14s period, W swell with 1,620 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 2.0m 14s and forecast to arrive on Monday (Sep 07) 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 0.5m 3s period and expected on Sunday (Sep 06) at 1PM.
| 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 | 7AM (Mon 7th Sep) | 6.5ft (2.0m) 14s |
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 for the next couple of weeks. To be straight with you, it’s a pretty grim outlook for the foreseeable future. We’ve got a long stretch of poor surf conditions ahead, so don’t go getting your hopes up.
The first bit of swell that shows up on Friday the 4th of September is a write-off. We’re looking at a 6ft W swell at Port Isaac, but it’s coming in with a 19 mph cross-on westerly wind, and the combined energy is a moderate 469. The water temperature is sitting at 65°, which is a touch warmer than normal for this time of year, but that’s about the only positive. The conditions are just lumpy and messy. Not worth a paddle.
Saturday the 5th is a bit of a tease. The morning brings a 4ft WNW swell with a 10-second period, energy down to 360, and a light cross-on breeze. It’s described as marginal, with questionable tide conditions. The afternoon drops to 3ft with a cross-shore wind. Still not good.
Sunday the 6th sees the swell drop right off to 2ft with a short 8 to 9-second period. The wind goes offshore in the morning, which is clean, but the energy is weak at 60. There’s just not enough oomph to bother with.
Then we get a bit of a jump on Monday the 7th. A 7ft W swell rolls in with a solid 13-second period, energy jumping to a strong 1359. But the wind is a fresh cross-on westerly, and the conditions are described as poor and choppy. It’s the biggest swell of the period, but the wind is just ruining it. This is too big for beginners anyway, and with that wind, it’s only going to be a messy, lumpy mess for the more experienced.
The rest of that week and into the next is a sandwich of poor conditions. Tuesday the 8th has 6ft with cross-shore winds and rain showers. Wednesday the 9th is similar with short-period 7ft WNW swell and fresh cross-on winds. The energy is moderate but the quality is rubbish. The pattern just keeps repeating. By Sunday the 13th, the swell is down to 2ft with a 10-second period, and a light offshore wind finally gives clean conditions, but the energy is a pathetic 69. It’s surfable, but very ordinary.
The final week is a total dud. From the 14th of September right through to the 19th, we’re looking at tiny waves, mostly under 2ft. The wind is all over the place, and the energy is in the double digits. There’s a glassy moment on Friday the 18th morning, but the swell is only 1.0ft. It’s a big blank run, and I’d say it’s normal for the area to have these quiet spells.
The one standout, if you can call it that, is the Monday the 7th morning session. The swell size is there at 7ft from the west, with a long 13-second period, which usually means better shaped waves. The energy is strong at 1359. But it’s a no-go for beginners, and the cross-on wind is a killer. For the experts, it might be worth a look if the wind shifts, but as it stands, it’s a frustrating one. It’s a beach break, and with that wind and size, it’s looking more interesting for the kite surfers than us paddle guys.
That’s the lot. A long wait for very little. Forecasts can change, but for now, it’s a quiet one.
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sun morning, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sat afternoon). | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the SSW by Wed night). | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 | WNW 10 | W 10 | W 10 | W 9 | W 8 | W 16 | W 13 | W 12 | W 11 | W 10 | W 10 | W 8 | WNW 7 | WNW 7 | W 7 | W 6 | W 7 | W 8 |
Wave Graph | ||||||||||||||||||||
461 | 265 | 356 | 202 | 118 | 57 | 50 | 129 | 1359 | 1148 | 1011 | 612 | 605 | 484 | 426 | 270 | 94 | 120 | 311 | 381 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | off | off | cross-off | cross | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross |
High Tide | 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 | 5:33AM6.55m | 5:52PM7.03m | ||||||||
Low Tide | 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 | 11:50AM0.48m | 00:15AM0.17m | |||||||
— | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:46 | — | — | |
7:59 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 4 | — | 2 | — | — | — | 3 | — | — | — |
Temp °C | 17 | 16 | 16 | 17 | 16 | 22 | 22 | 18 | 17 | 17 | 16 | 17 | 16 | 15 | 16 | 16 | 16 | 17 | 18 | 19 |
Feels °C | 12 | 12 | 15 | 15 | 14 | 17 | 18 | 18 | 12 | 12 | 12 | 11 | 10 | 9 | 11 | 11 | 13 | 14 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 14 | W 9 | WNW 10 | W 10 | W 10 | W 9 | W 8 | W 8 | W 13 | — | W 11 | — | — | — | — | — | W 7 | W 12 | W 11 | — |
8 | 113 | 356 | 202 | 118 | 57 | 50 | 92 | 1359 | — | 1011 | — | — | — | — | — | 94 | 3 | 2 | — | |
Swell 2 Height (m) Direction Period (s) | — | SW 14 | W 14 | NNW 4 | NNW 4 | W 13 | — | W 16 | — | — | — | — | — | — | — | — | NNW 5 | — | — | — |
— | 8 | 4 | 2 | 1 | 3 | — | 129 | — | — | — | — | — | — | — | — | 9 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | WNW 8 | — | — | — |
— | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | 24 | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | S 3 | SSW 3 | — | — | W 12 | — | W 10 | W 10 | W 8 | WNW 7 | WNW 7 | — | W 6 | W 7 | W 8 |
461 | 265 | — | — | — | 2 | 4 | — | — | 1148 | — | 612 | 605 | 484 | 426 | 270 | — | 120 | 311 | 381 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 227 | 120 | 14 | 4 | 0 | 76 | 62 | 14 | 526 | 227 | 39 | 203 | 338 | 508 | 406 | 218 | 14 | 14 | 14 | 258 |
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)
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.










