Surf Forecasts:
Port Isaac surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 20 Aug, 1AM (local time) - 8ft (2.5m), 11s period, WNW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 8ft (2.5m), 11s period, WNW swell with 1,689 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 7AM (local time) - 2.5ft (0.8m), 9s 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 Friday (Aug 14) at 7AM. The primary swell is predicted to be 0.8m and 9s period. 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 2.5m 11s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 14th Aug) | 2.5ft (0.8m) 9s |
| Best Surf | 1AM (Thu 20th Aug) | 8ft (2.5m) 11s |
| Most Powerful | 10PM (Wed 19th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu for the next couple of weeks down at Port Isaac.
First up, bit of a bummer to be honest. The first week and a half is pretty much a write-off. From now through Sunday the 20th of August, the wind is all over the place, and the sea's just not got its act together to produce anything you'd want to paddle out into. It's a long, flat, messy gap right at the start with no real recommendations.
Now, there is a little light on the horizon. After that long wait, we get a brief window of hope on the morning of Friday the 21st of August. It's not pumping, with some small 2ft swell rolling in from the west, but the wind will swing around to a light easterly, giving us a cross-off breeze that'll clean things right up. You'll be looking at weak wave energy (107) but the surface will be clean. It's about as good as it gets in this stretch, so if you're desperate for any kind of ride, that's your best bet.
Then it's back into the wilderness with virtually nothing until we get a couple of last-chance-saloon sessions on the 23rd of August. A little 2ft westerly swell kicks back in, and a southerly wind will be blowing offshore, keeping the waves clean. The energy is weak (73 to 81), so think small, grovelley boards and soft, rolling shoulders. A bit of moderate rain might be around on the Sunday arvo, but the clean, offshore lines will be a welcome sight after such a dry spell.
To wrap it up, the ocean has finally woken up with a bigger push on the 27th and 28th of August, but it's all chopped up by strong, cross-shore winds. The swell will be pushing 5ft or so, with moderate energy (206 to 365), but it'll be lumpy and messy. For this part of the world, with the wind angle we’re seeing, that’s more of a kite-surfing show than a clean paddle-surfing one. Not really one to get excited about.
So, to be straight with you: there’s no true standout week of magic here. The only two days that are even worth a look are the 21st and 23rd of August. Everything else is either flat, blown out, or both.
Stay patient, lads. Rusty out.
Short Range ForecastMostly dry. Warm (max 22°C on Wed night, min 16°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the NNW by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Tue afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 11 | W 10 | W 10 | W 9 | W 9 | W 8 | N 5 | W 8 | NNW 5 | NNW 5 | W 7 | W 7 | W 7 | W 4 | W 7 | W 7 | W 7 | W 6 | W 8 | W 9 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 224 | 196 | 149 | 104 | 99 | 107 | 74 | 57 | 56 | 23 | 16 | 10 | 8 | 27 | 218 | 107 | 69 | 148 | 800 | 1251 | 1599 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross-on | on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross | cross | cross | cross | cross-on | on | on | glassy |
High Tide | 6:33AM6.88m | 6:53PM7.33m | 7:15AM7.07m | 7:34PM7.45m | 7:55AM7.09m | 8:14PM7.35m | 8:34AM6.93m | 8:52PM7.05m | 9:11AM6.63m | 9:30PM6.61m | 9:48AM6.22m | 10:08PM6.08m | 10:27AM5.75m | 10:49PM5.52m | |||||||
Low Tide | 12:49PM0.19m | 1:16AM-0.03m | 1:30PM0.04m | 1:55AM-0.06m | 2:08PM0.07m | 2:33AM0.10m | 2:46PM0.28m | 3:08AM0.42m | 3:22PM0.62m | 3:43AM0.85m | 3:58PM1.07m | 4:19AM1.34m | 4:37PM1.56m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 20 | 20 | 18 | 18 | 17 | 16 | 18 | 18 | 16 | 19 | 19 | 19 | 21 | 22 | 19 | 16 | 17 | 16 |
Feels °C | 22 | 21 | 21 | 21 | 19 | 17 | 13 | 11 | 11 | 14 | 14 | 13 | 17 | 17 | 18 | 20 | 21 | 17 | 11 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 18 | W 16 | W 7 | W 17 | W 17 | — | — | — |
| kJ | 224 | 196 | 149 | 104 | 99 | 107 | 60 | 57 | 28 | 17 | 16 | 9 | 8 | 6 | 5 | 107 | 6 | 6 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 18 | W 9 | — | — | W 17 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | — | — | 6 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 3 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNW 4 | N 5 | N 5 | NNW 5 | NNW 5 | N 4 | NNW 4 | — | W 4 | W 7 | — | W 7 | W 6 | W 8 | W 9 | WNW 11 |
| kJ | — | — | — | — | — | 16 | 74 | 45 | 56 | 23 | 9 | 10 | — | 27 | 218 | — | 69 | 148 | 800 | 1251 | 1599 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 53 | 249 | 14 | 14 | 14 | 61 | 338 | 263 | 251 | 309 | 408 | 404 | 491 | 259 | 227 | 95 | 227 | 249 | 69 | 86 | 0 |
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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