Surf Forecasts:
Port Isaac surf forecast from 3 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 10AM (local time) - 5.5ft (1.7m), 7s period, W swell with 311 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 1.7m 7s and forecast to arrive on Wednesday (Aug 05) 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 0.3m 2s period and expected on Tuesday (Aug 04) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 5th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright, let me tell you how it's looking for Port Isaac over the next couple of weeks.
Right off the bat, I gotta be straight with you – it’s a lean stretch. The first week is mostly a bust. We’ve got a few tiny pulses of swell, but the wind is just a mess, swinging from strong cross-offshores to howling cross-onshore. It’s going to be a lot of staring at lumpy, choppy water for not much reward. The water is sitting at 65°F, which is a touch warmer than we usually get this time of year, so that’s a small comfort if you’re just getting wet.
The real standout, the only time I’d really bother paddling out, is on Sunday, August 9th, in the morning. The swell is still small – only 3 ft from the West – but the wind is glassy, coming from the ENE. That’s a window of opportunity for clean, small-wave fun at Port Isaac (Cornwall). The energy is weak (68), but when it’s that clean, you can still have a laugh on a longboard. It’s a beginner-friendly spot anyway, and with it being “sometimes” crowded, you might just have a few waves to yourself if you get out early.
After that, it’s back to the doldrums. There’s nothing else worth chasing until the very end of the run. On Sunday, August 16th, in the afternoon, we get a spike of moderate energy (134) with a 4 ft wave from the NNW, but it’s accompanied by a direct onshore wind at 12 mph. That’s going to be a messy, blown-out mess. Definitely not the one.
So, to be honest, your best bet is to clear your calendar for the morning of Sunday the 9th. It’s not going to be epic, but it’s the only clean, glassy surf in the whole forecast. The rest of the 16 days is a write-off.
- Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 22°C on Mon afternoon, min 15°C on Wed night). Winds increasing (calm on Mon afternoon, fresh winds from the SW by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sun morning, min 14°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 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 9 | WSW 8 | WSW 7 | WSW 7 | WSW 6 | W 7 | W 7 | WNW 7 | WNW 6 | WNW 6 | W 5 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 7 | W 6 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 39 | 39 | 86 | 84 | 134 | 311 | 233 | 277 | 146 | 80 | 19 | 15 | 15 | 6 | 6 | 6 | 23 | 45 | 19 | 5 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | glassy | on | cross-on | cross-on | on | cross |
High Tide | 9:26PM6.60m | 9:46AM6.27m | 10:06PM6.35m | 10:29AM6.03m | 10:52PM6.02m | 11:20AM5.72m | 11:50PM5.66m | 12:25PM5.44m | 1:03AM5.38m | 1:46PM5.33m | 2:30AM5.36m | 3:10PM5.54m | 3:49AM5.65m | |||||||
Low Tide | 3:39AM0.80m | 3:53PM0.95m | 4:19AM1.05m | 4:37PM1.23m | 5:06AM1.36m | 5:31PM1.55m | 6:07AM1.68m | 6:43PM1.81m | 7:27AM1.89m | 8:14PM1.86m | 8:57AM1.80m | 9:41PM1.57m | ||||||||
 |  |  | | | | |  |  | | | | | | | | | | | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 9:00 | — | — | 9:00 | — | 8:58 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — |
mm | — | — | 1 | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 20 | 21 | 20 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 18 | 18 | 16 | 19 | 19 | 17 | 24 | 24 | 22 |
Feels °C | 22 | 18 | 18 | 17 | 13 | 12 | 11 | 11 | 11 | 12 | 13 | 16 | 16 | 15 | 16 | 16 | 15 | 21 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | WSW 8 | — | W 9 | — | — | W 13 | W 11 | W 10 | W 10 | W 5 | WNW 5 | W 9 | WNW 4 | W 9 | W 9 | WNW 4 | W 7 | W 8 | WNW 4 |
| kJ | 39 | 39 | — | 7 | — | — | 3 | 2 | 9 | 17 | 19 | 8 | 15 | 2 | 6 | 6 | 7 | 45 | 5 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 12 | NNW 4 | W 9 | — | W 9 | WNW 5 | — | W 8 | — | — | W 8 |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 4 | 15 | — | 6 | 2 | — | 23 | — | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | W 5 | W 13 | — | — | — | — | W 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | 17 | — | — | 1 | 3 | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | WSW 7 | WSW 6 | W 7 | W 7 | WNW 7 | WNW 6 | WNW 6 | — | — | W 5 | — | — | WNW 3 | — | — | W 6 | NNW 3 |
| kJ | — | — | 86 | 84 | 134 | 311 | 233 | 277 | 146 | 80 | — | — | 11 | — | — | 3 | — | — | 19 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 6 | 15 | 424 | 227 | 315 | 250 | 227 | 120 | 410 | 259 | 407 | 424 | 408 | 267 | 67 | 69 | 15 | 6 | 46 | 67 |
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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