Surf Forecasts:
Port Isaac surf forecast from 8 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 2ft (0.6m), 11s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 11s period, W swell with 224 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2ft (0.6m), 11s 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 Wednesday (Aug 12) at 4AM. The primary swell is predicted to be 0.6m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Port Isaac in the next 16 days are 1.0m 11s and forecast to arrive on Thursday (Aug 13) 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 11) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Best Surf | 4AM (Wed 12th Aug) | 2ft (0.6m) 11s |
| Most Powerful | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 11s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright, lads, let’s talk turkey. Port Isaac is looking at a 16-day forecast that’s about as exciting as a flat tyre. The first week is a proper slog – tiny waves and naff wind. But there’s a tiny window mid-period that might get you wet, and a whisper of something better way out at the end.
We start Saturday the 8th with a pathetic 0.7ft west swell, period a short 9 seconds, and the combined energy is a weak 8. Don’t even bother. Sunday the 9th is the same story. The whole first week is a washout with 0.7ft to 2ft swell and cross-onshore winds ruining any chance of a ride.
Finally, Wednesday the 12th shows a glimmer. The wind goes glassy in the morning, dead calm, with a 2ft west swell and a 10-second period. The combined energy jumps to 94, which is weak but gives the waves a little push. This is the best of a bad lot early on – clean, small, and rideable for a beginner like this break is suited for. The water is 65°, which is a touch warmer than normal for this time of year.
Thursday the 13th sees a jump in swell to 3ft from the west, with a longer period of 11 seconds and combined energy of 224 (moderate). But the wind is cross-onshore from the WNW, making it choppy, so it’s not worth the drive.
Then we have a long, flat gap. From the 14th through the 17th, it’s a mess of 1ft to 3ft swell with onshore winds. The 18th and 19th are similar – small, choppy, and frustrating.
The last week has a few flickers. Thursday the 20th brings a 5ft west-northwest swell with a short 7-second period. Combined energy is 205 (moderate), but the wind is onshore from the NNW. That’s a powerful, lumpy mess only for the hardcore. Saturday the 22nd and Sunday the 23rd are a dead end again.
But hold on. Sunday the 23rd, in the morning, we get a clean offshore wind from the SSE. It’s a 1ft west swell, 9-second period, with combined energy of 31. It’s small, but it’s clean. If you’re desperate, that’s the surfable window.
The standout, if you can call it that, is Wednesday the 12th. The glassy conditions and the 2ft swell make it the only proper surfable day for a beginner. It’s not a classic, but it’s clean. The rest? You’re better off waiting for the next forecast.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 16°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed afternoon, min 18°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 | WNW 9 | W 8 | W 8 | WNW 4 | WNW 5 | WNW 5 | WNW 8 | W 8 | W 8 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 6 | 8 | 6 | 6 | 9 | 33 | 14 | 22 | 11 | 10 | 60 | 94 | 85 | 106 | 224 | 200 | 149 | 102 | 55 | 63 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross | cross-off | cross-off | cross-off | glassy | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:30AM5.36m | 3:10PM5.54m | 3:49AM5.65m | 4:21PM6.00m | 4:53AM6.09m | 5:19PM6.54m | 5:46AM6.54m | 6:08PM7.01m | 6:33AM6.88m | 6:53PM7.33m | 7:15AM7.07m | 7:34PM7.45m | ||||||||
Low Tide | 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 | 12:49PM0.19m | 1:16AM-0.03m | 1:30PM0.04m | 1:55AM-0.06m | |||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 18 | 20 | 20 | 17 | 17 | 18 | 19 | 25 | 24 | 21 | 27 | 28 | 23 | 22 | 21 | 19 | 20 | 19 | 18 |
Feels °C | 20 | 17 | 18 | 18 | 16 | 15 | 15 | 17 | 22 | 21 | 18 | 26 | 27 | 21 | 19 | 18 | 19 | 19 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 9 | W 8 | W 8 | W 8 | WNW 5 | WNW 5 | NNW 4 | W 8 | W 8 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 |
| kJ | 6 | 8 | 6 | 6 | 6 | 33 | 14 | 7 | 11 | 10 | 60 | 94 | 85 | 106 | 224 | 200 | 149 | 102 | 55 | 63 |
Swell 2 Height (m) Direction Period (s) | NW 4 | SW 7 | SW 6 | SW 6 | SW 6 | W 8 | WNW 8 | WNW 8 | NNW 4 | W 9 | W 7 | — | — | — | — | — | NW 4 | — | — | — |
| kJ | 1 | 2 | 2 | 2 | 2 | 6 | 14 | 22 | 1 | 7 | 4 | — | — | — | — | — | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 7 | — | W 11 | — | — | — | SW 6 | SW 7 | W 10 | W 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | 2 | — | — | — | 2 | 2 | 2 | 3 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WNW 4 | — | NNW 4 | — | SE 2 | — | — | — | — | — | — | NW 3 | — | — | W 3 | — |
| kJ | — | — | — | — | 9 | — | 6 | — | 1 | — | — | — | — | — | — | 7 | — | — | 3 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 69 | 67 | 408 | 249 | 249 | 67 | 249 | 15 | 394 | 249 | 3 | 0 | 0 | 3 | 60 | 227 | 14 | 14 | 227 | 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)
Latest Updates
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