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Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
16 Day Weather and Surf, issued 6 am Thursday 14 May 2026 BSTForecast update in hr min s Forecast update imminent
Porthtowan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porthtowan sea temperature is
12.6° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Porthtowan this week:
The surf forecast for Porthtowan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 20) at 7AM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.6m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Porthtowan in the next 16 days are 3.0m 13s and forecast to arrive on Wednesday (May 20) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Monday (May 18) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 20th May) | 10ft (3.0m) 11s |
| Best Surf | 7AM (Wed 20th May) | 10ft (3.0m) 11s |
| Most Powerful | 10AM (Wed 20th May) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Porthtowan over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Very mild (max 13°C on Sat afternoon, min 9°C on Fri morning). Winds decreasing (fresh winds from the NNW on Thu morning, light winds from the SW by Fri night). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Mon afternoon. Very mild (max 15°C on Tue afternoon, min 10°C on Sun afternoon). Mainly fresh winds. | ||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NW 7 | NW 7 | N 6 | NNW 7 | NNW 6 | WNW 8 | W 8 | W 7 | W 6 | WNW 14 | WNW 13 | WNW 12 | W 12 | SSW 7 | SW 9 | SW 9 | SW 9 | WSW 11 | WSW 13 | W 13 | W 12 | |
777 | 593 | 232 | 277 | 164 | 77 | 29 | 27 | 118 | 326 | 1092 | 619 | 955 | 678 | 1325 | 1034 | 1255 | 2170 | 3001 | 2599 | 1415 | |
Wind (km/h) | |||||||||||||||||||||
on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | cross | cross | cross | cross | cross | cross-off | |
High Tide | 4:05PM5.81m | 4:25AM6.13m | 4:50PM6.22m | 5:11AM6.45m | 5:35PM6.54m | 5:57AM6.63m | 6:20PM6.70m | 6:43AM6.64m | 7:06PM6.70m | 7:31AM6.47m | 7:53PM6.54m | 8:20AM6.16m | 8:44PM6.25m | ||||||||
Low Tide | 10:02AM0.78m | 10:23PM0.74m | 10:48AM0.42m | 11:09PM0.37m | 11:33AM0.17m | 11:55PM0.11m | 12:18PM0.06m | 00:42AM0.00m | 1:04PM0.10m | 1:31AM0.06m | 1:52PM0.29m | 2:21AM0.27m | 2:42PM0.58m | 3:16AM0.59m | |||||||
 |  |  |  | |  |  | |  | | |  | |  |  | | | | |  | | |
 | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | 8:59 | — | — | — | 9:00 | — | — | 9:01 | — | — | 9:02 | — | — | 9:04 | — | — | 9:06 | — | — | 9:07 |
2 | 2 | — | — | — | — | — | — | 1 | — | 1 | 5 | 3 | 6 | — | — | — | — | — | — | — | |
Temp °C | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 13 | 10 | 12 | 12 | 11 | 11 | 13 | 13 | 14 | 15 | 13 | 15 | 15 | 15 |
2 | 2 | 3 | 4 | 3 | 8 | 8 | 9 | 6 | 7 | 6 | 6 | 5 | 9 | 8 | 8 | 9 | 9 | 12 | 12 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 15 | WNW 7 | SSW 14 | SW 14 | N 6 | W 8 | W 7 | W 13 | WNW 8 | WNW 13 | WNW 12 | W 12 | WNW 11 | S 19 | W 15 | W 15 | W 17 | WSW 13 | W 13 | W 12 |
 kJ | 33 | 21 | 128 | 20 | 7 | 36 | 29 | 27 | 89 | 202 | 1092 | 619 | 955 | 249 | 7 | 4 | 4 | 53 | 3001 | 2599 | 1415 |
Swell 2 Height (m) Direction Period (s) | S 7 | — | SSW 14 | SSW 14 | W 9 | SW 13 | N 6 | N 5 | W 8 | WNW 14 | SW 12 | — | S 14 | — | — | SW 18 | — | — | — | — | SW 16 |
| kJ | 1 | — | 21 | 19 | 2 | 7 | 10 | 2 | 5 | 326 | 6 | — | 4 | — | — | 13 | — | — | — | — | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 9 | W 9 | WNW 15 | — | WNW 11 | — | — | — | — | — | S 18 | — | — | — | — | — |
| kJ | — | — | — | — | — | 2 | 6 | 21 | — | 91 | — | — | — | — | — | 6 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 7 | NW 7 | N 6 | NNW 7 | NNW 6 | WNW 8 | W 5 | W 5 | W 6 | — | — | W 7 | — | SSW 7 | SW 9 | SW 9 | SW 9 | WSW 11 | — | SSW 7 | — |
| kJ | 777 | 593 | 232 | 277 | 164 | 77 | 28 | 12 | 118 | — | — | 295 | — | 678 | 1325 | 1034 | 1255 | 2170 | — | 86 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 269 | 1444 | 174 | 234 | 317 | 17 | 210 | 280 | 209 | 104 | 510 | 19 | 57 | 272 | 569 | 57 | 227 | 17 | 17 | 17 | 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 Porthtowan 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 Porthtowan Surf forecast
The above surf forecast table for Porthtowan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porthtowan can be found by selecting the local surf guide option on the grey menu. Our Porthtowan 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 (Porthtowan) 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 Porthtowan 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.
Porthtowan is 8 km (5 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.
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