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Port Isaac Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Port Isaac surfForecast / Cornwall (North) / UK
16 Day Weather and Surf, issued 6 pm Wednesday 13 May 2026 BSTForecast update in hr min s Forecast update imminent
Port Isaac surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port Isaac sea temperature is
12.4° C
(Which is 1.0°C warmer than normal for this time of year)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 Monday (May 18) at 10AM. The primary swell is predicted to be 1.4m 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 2.1m 11s and forecast to arrive on Wednesday (May 20) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (May 18) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 18th May) | 4.5ft (1.4m) 11s |
| Best Surf | 10AM (Wed 20th May) | 7ft (2.1m) 10s |
| Most Powerful | 4PM (Wed 20th May) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Wed afternoon. Very mild (max 11°C on Wed afternoon, min 8°C on Fri night). Winds decreasing (strong winds from the NNW on Wed night, calm by Fri night). | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Mon night. Very mild (max 14°C on Tue morning, min 9°C on Sun night). Winds increasing (light winds from the WSW on Sun night, fresh winds from the SE by Mon night). | ||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
WNW 8 | NW 7 | NW 7 | NW 7 | NNW 6 | NNW 6 | NW 6 | W 7 | W 7 | W 5 | WNW 5 | WNW 12 | W 12 | W 8 | W 11 | W 11 | WSW 9 | WSW 9 | WSW 9 | WSW 10 | W 10 | |
727 | 539 | 623 | 449 | 155 | 108 | 118 | 40 | 26 | 19 | 49 | 113 | 566 | 279 | 467 | 381 | 415 | 348 | 554 | 657 | 944 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | on | on | on | cross-on | on | on | cross-on | cross | cross-off | cross-on | cross-on | cross | cross | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | |
High Tide | 3:58AM6.19m | 4:26PM6.29m | 4:46AM6.64m | 5:11PM6.74m | 5:32AM6.99m | 5:56PM7.08m | 6:18AM7.18m | 6:41PM7.25m | 7:05AM7.20m | 7:27PM7.26m | 7:52AM7.03m | 8:15PM7.09m | 8:42AM6.70m | ||||||||
Low Tide | 9:51PM1.29m | 10:18AM0.88m | 10:39PM0.82m | 11:04AM0.49m | 11:25PM0.42m | 11:49AM0.21m | 00:11AM0.13m | 12:33PM0.08m | 00:57AM0.01m | 1:19PM0.12m | 1:45AM0.08m | 2:06PM0.31m | 2:35AM0.31m | ||||||||
 |  |  | |  |  | |  | |  |  | |  | | | |  | | | | | |
 | — | — | 5:33 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — | 5:24 |
 | 8:57 | — | — | 8:58 | — | — | — | 9:00 | — | — | 9:00 | — | — | 9:02 | — | — | 9:04 | — | — | 9:05 | 9:07 |
1 | 2 | 2 | 1 | — | — | — | — | — | — | — | 1 | 2 | 3 | — | 2 | 5 | 2 | 6 | — | — | |
Temp °C | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 11 | 12 | 10 | 11 | 11 | 10 | 12 | 13 | 13 | 14 | 13 | 12 | 15 |
3 | 2 | 2 | 2 | 3 | 4 | 3 | 4 | 7 | 8 | 6 | 7 | 5 | 5 | 8 | 9 | 9 | 9 | 7 | 6 | 12 | |
Swell 1 Height (m) Direction Period (s) | W 16 | W 16 | W 15 | W 15 | WNW 7 | WNW 7 | W 9 | N 5 | W 7 | W 7 | WNW 13 | WNW 6 | — | W 8 | W 11 | W 11 | WSW 9 | WSW 9 | W 15 | WSW 10 | — |
 kJ | 5 | 5 | 4 | 4 | 77 | 73 | 7 | 23 | 26 | 9 | 34 | 62 | — | 255 | 467 | 381 | 415 | 348 | 4 | 657 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 15 | W 14 | W 14 | W 7 | N 4 | W 9 | W 8 | WNW 12 | — | W 12 | — | — | — | W 15 | — | — | — |
| kJ | — | — | — | — | 4 | 4 | 4 | 40 | 1 | 6 | 5 | 113 | — | 279 | — | — | — | 4 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 9 | W 9 | W 15 | W 7 | W 8 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 6 | 6 | 4 | 1 | 12 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 8 | NW 7 | NW 7 | NW 7 | NNW 6 | NNW 6 | NW 6 | — | — | W 5 | WNW 5 | — | W 12 | — | — | — | — | SSW 4 | WSW 9 | — | W 10 |
| kJ | 727 | 539 | 623 | 449 | 155 | 108 | 118 | — | — | 19 | 49 | — | 566 | — | — | — | — | 18 | 554 | — | 944 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 338 | 793 | 257 | 245 | 129 | 288 | 269 | 278 | 278 | 227 | 315 | 114 | 227 | 39 | 0 | 4 | 0 | 371 | 482 | 227 | 0 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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