Surf Forecasts:
Porthtowan surf forecast from 29 Sep 2026:
- Best quality surf: Wednesday 30 Sep, 4AM (local time) - 11ft (3.5m), 11s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 1 Oct, 10AM (local time) - 11ft (3.5m), 14s period, W swell with 4,395 kJ wave energy.
- Next surfable swell (1★+): Wednesday 30 Sep, 4AM (local time) - 11ft (3.5m), 11s period with SW swell.
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 (Sep 30) at 4AM. The primary swell is predicted to be 3.5m and 11s period. 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 3.5m 14s and forecast to arrive on Thursday (Oct 01) 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 0.5m 6s period and expected on Wednesday (Sep 30) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 30th Sep) | 11ft (3.5m) 11s |
| Best Surf | 4AM (Wed 30th Sep) | 11ft (3.5m) 11s |
| Most Powerful | 10AM (Thu 1st Oct) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Porthtowan over the next 16 days.
Short Range ForecastHeavy rain (total 25mm), heaviest during Tue night. Warm (max 22°C on Tue afternoon, min 14°C on Wed night). Winds decreasing (strong winds from the SSE on Tue night, light winds from the WSW by Wed night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Sat morning, min 15°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Monday 5 | ||||||||||||||
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 10 | SSW 11 | SW 11 | SW 11 | SW 11 | W 14 | W 13 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | WNW 11 | WNW 11 | WNW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 52 | 3477 | 2317 | 2536 | 1848 | 4395 | 2964 | 1510 | 1046 | 826 | 563 | 371 | 312 | 220 | 148 | 117 | 74 | 126 | 119 | 102 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | on | glassy | glassy | on | glassy | glassy | cross-on | cross-off |
High Tide | 7:36PM6.64m | 7:55AM6.49m | 8:16PM6.37m | 8:36AM6.20m | 9:00PM5.94m | 9:23AM5.77m | 9:52PM5.41m | 10:20AM5.29m | 10:58PM4.90m | 11:36AM4.90m | 00:28AM4.61m | 1:12PM4.83m | 2:05AM4.73m | |||||||
Low Tide | 1:53AM0.18m | 2:12PM0.27m | 2:32AM0.49m | 2:54PM0.62m | 3:16AM0.92m | 3:44PM1.07m | 4:10AM1.41m | 4:51PM1.53m | 5:27AM1.83m | 6:24PM1.81m | 7:06AM1.96m | 8:03PM1.70m | ||||||||
 |  |  | | |  |  |  | | | | | |  | | | | | | | |
 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — |
 | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:55 | — | — | 6:53 | — | — | 6:51 | — |
mm | 4 | 15 | 1 | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 18 | 17 | 16 | 14 | 16 | 16 | 16 | 17 | 17 | 16 | 18 | 17 | 16 | 17 | 17 | 16 | 18 | 18 | 16 |
Feels °C | 16 | 11 | 10 | 11 | 11 | 12 | 11 | 13 | 13 | 13 | 15 | 18 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | W 10 | SW 11 | — | — | SW 11 | W 14 | W 13 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | WNW 11 | WNW 11 | WNW 10 |
| kJ | 52 | 3284 | — | — | 1848 | 4395 | 2964 | 1510 | 1046 | 826 | 563 | 371 | 312 | 220 | 148 | 117 | 74 | 126 | 119 | 102 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | WNW 15 | — | — | S 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 |
| kJ | — | — | — | — | 678 | — | — | 6 | 12 | 10 | 10 | 10 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | S 6 | SSW 11 | SW 11 | SW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 229 | 3477 | 2317 | 2536 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 703 | 208 | 245 | 207 | 19 | 24 | 17 | 42 | 207 | 207 | 0 | 0 | 17 | 0 | 0 | 17 | 0 | 0 | 16 | 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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