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Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
12 Day Weather and Surf, issued 5 pm Thursday 04 Dec 2025 GMTForecast 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 05) at 12AM. The primary swell is predicted to be 4.0m and 15s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Porthtowan in the next 12 days are 8.0m 17s and forecast to arrive on Saturday (Dec 06) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 7s period and expected on Tuesday (Dec 09) at 9AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 5th Dec) | 13ft (4.0m) 15s |
| Best Surf | 12AM (Fri 5th Dec) | 13ft (4.0m) 15s |
| Most Powerful | 9AM (Sat 6th Dec) | 26ft (8.0m) 17s |
Table - best surf conditions forecast for Porthtowan over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 17mm), heaviest on Fri morning. Very mild (max 14°C on Sun morning, min 8°C on Thu afternoon). Mainly near gales. | Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Tue morning. Very mild (max 14°C on Mon night, min 11°C on Sun afternoon). Winds increasing (light winds from the SW on Sun night, near gales from the SSW by Tue afternoon). | ||||||||||||||||||||||
Thu 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 13 | 15 | 15 | 9 | 13 | 17 | 17 | 16 | 14 | 10 | 11 | 11 | 19 | 18 | 17 | 16 | 13 | 13 | 12 | 12 | 11 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 5414 | 7129 | 4741 | 1824 | 11071 | 35824 | 29866 | 12430 | 6319 | 1970 | 2838 | 2131 | 5897 | 10216 | 10624 | 6510 | 9976 | 8993 | 5176 | 1820 | 4368 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- off | cross | cross | cross- on | cross- on | cross | cross | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross- off | cross- off | ||
High Tide / height (m) | 4:17PM 6.46 | 4:41AM 6.60 | 5:06PM 6.56 | 5:28AM 6.70 | 5:54PM 6.51 | 6:16AM 6.65 | 6:42PM 6.30 | 7:04AM 6.46 | 7:31PM 5.99 | 7:54AM 6.15 | 8:21PM 5.60 | 8:46AM 5.78 | 9:16PM 5.22 | 9:41AM 5.40 | |||||||||
Low Tide / height (m) | 10:39PM 0.19 | 11:05AM 0.07 | 11:27PM 0.13 | 11:55AM 0.02 | 12:15AM 0.20 | 12:44PM 0.13 | 1:03AM 0.39 | 1:35PM 0.38 | 1:52AM 0.68 | 2:27PM 0.71 | 2:44AM 1.02 | 3:21PM 1.07 | 3:38AM 1.36 | ||||||||||
Thu 04 | Friday 05 | Saturday 06 | Sunday 07 | Monday 08 | Tuesday 09 | Wednesday 10 | |||||||||||||||||
| Sunrise | - | - | 8:03 | - | - | 8:03 | - | - | 8:04 | - | - | 8:06 | - | - | 8:07 | - | - | 8:07 | - | - | 8:08 | ||
| Sunset | 4:19 | - | - | 4:19 | - | - | 4:17 | - | - | 4:17 | - | - | 4:17 | - | - | 4:17 | - | - | 4:16 | - | - | ||
 |  |  | |  | |  | | |  | | | |  |  | | | |  | | | |||
Rain (mm) | 2 | - | 5 | 3 | 3 | 2 | - | 2 | - | - | - | - | - | 9 | 15 | 1 | 1 | 1 | - | - | - | ||
| Temp. °C | 9 | 9 | 10 | 13 | 11 | 11 | 11 | 13 | 14 | 12 | 12 | 13 | 13 | 14 | 14 | 14 | 12 | 11 | 11 | 12 | 12 | ||
| Feels °C (?) | 2 | 3 | -1 | 4 | 0 | 1 | 2 | 8 | 9 | 6 | 9 | 9 | 9 | 6 | 6 | 3 | 8 | 3 | 4 | 6 | 4 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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 12 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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