Surf Forecasts:
Port Isaac surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 10s period, W swell with 206 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 1.0m 10s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about the next couple of weeks with the numbers you might be more familiar with.
Honestly, it’s a pretty grim outlook for the Port Isaac area for the next 16 days. We’re looking at a big gap with virtually no surf on offer. The first time you’d even want to consider getting wet is the morning of Tuesday, the 18th of August. Before that, it’s a week or more of tiny, messy, or flat conditions. The water is sitting at about 66°F, which is a touch warmer than normal for the time of year.
The only real highlight, and it’s a modest one, is Port Isaac itself on the morning of Tuesday, the 18th of August. You’ve got a 4ft swell coming from the west, with a 8-second period. The wind is offshore from the south at 12 mph, which will clean the faces right up. The combined energy is moderate at 179, so there’s some life in the water. This is a beginner-friendly break, and the size is manageable for most. Crowds are a possibility, but nothing too heavy.
After that, the waves stay around 3ft to 4ft, but the wind goes onshore or cross-shore for the rest of the week and into the 20th and 21st of August, making it choppy and ugly. The gusts will hit 18–19 mph from the northwest, so it’s blown-out. The periods are short, mostly under 8 seconds, so the waves are weak and messy.
So, if you’re keen, that Tuesday morning the 18th of August is your best bet. The rest of the time, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 14°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 17°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 6 | W 10 | W 9 | WNW 5 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 8 | W 11 | W 10 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 31 | 17 | 15 | 7 | 6 | 6 | 14 | 6 | 6 | 6 | 5 | 14 | 14 | 13 | 11 | 10 | 60 | 153 | 164 | 125 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | cross | off | glassy | glassy | cross-on | on | on | on | on | cross-on | off | cross-off | cross-on | cross-on | cross-on | cross |
High Tide | 11:50PM5.66m | 12:25PM5.44m | 1:03AM5.38m | 1:46PM5.33m | 2:30AM5.36m | 3:10PM5.54m | 3:49AM5.65m | 4:21PM6.00m | 4:53AM6.09m | 5:19PM6.54m | 5:46AM6.54m | 6:08PM7.01m | ||||||||
Low Tide | 5:31PM1.55m | 6:07AM1.68m | 6:43PM1.81m | 7:27AM1.89m | 8:14PM1.86m | 8:57AM1.80m | 9:41PM1.57m | 10:14AM1.44m | 10:50PM1.09m | 11:14AM0.96m | 11:45PM0.59m | 12:04PM0.52m | 00:33AM0.20m | |||||||
 |  | | |  |  |  | | | | | | | | | | | | | | |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — |
 | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 17 | 17 | 15 | 20 | 21 | 18 | 23 | 21 | 18 | 21 | 22 | 20 | 26 | 26 | 20 | 21 | 21 | 19 |
Feels °C | 14 | 14 | 15 | 14 | 14 | 19 | 21 | 16 | 20 | 18 | 17 | 19 | 19 | 19 | 24 | 24 | 21 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 5 | W 5 | W 9 | W 9 | W 9 | W 9 | WSW 7 | W 8 | W 8 | W 8 | WNW 4 | WNW 5 | WNW 8 | W 8 | W 8 | W 11 | W 10 | W 9 | W 9 |
| kJ | 31 | 8 | 4 | 7 | 6 | 6 | 14 | 5 | 6 | 6 | 5 | 3 | 9 | 13 | 11 | 10 | 60 | 153 | 164 | 125 |
Swell 2 Height (m) Direction Period (s) | NNW 5 | W 10 | W 9 | — | WNW 4 | — | — | W 9 | SW 6 | SW 7 | SW 6 | WNW 8 | WNW 8 | W 4 | W 10 | W 10 | W 7 | — | — | — |
| kJ | 7 | 17 | 15 | — | 1 | — | — | 6 | 2 | 2 | 2 | 14 | 14 | 1 | 8 | 7 | 9 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 10 | NNW 5 | — | — | W 13 | — | — | — | — | — | — | SW 6 | SW 6 | NNW 3 | SW 6 | SW 6 | W 6 | — | — | — |
| kJ | 17 | 2 | — | — | 3 | — | — | — | — | — | — | 2 | 2 | 1 | 2 | 2 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 5 | — | — | — | — | — | NNW 3 | NW 3 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 7 | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 424 | 235 | 407 | 398 | 251 | 249 | 83 | 67 | 410 | 85 | 67 | 69 | 85 | 67 | 83 | 227 | 6 | 66 | 14 | 11 |
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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