Buy Less, Surf More This Black Friday
Surf-forecast is providing a free, all-access pass to our premium features and 12-day forecasts all weekend.
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 pm Saturday 06 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
12.4° C
(Which is slightly warmer than usual)How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 2AM is: 4.5m 15s primary swell from a West direction (forecast issued at 11:00pm December 06). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Dec) | 10ft (3.0m) | 14s |
| Afternoon (07 Dec) | 15ft (4.5m) | 12s |
| Evening (07 Dec) | 13ft (4.0m) | 12s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 07 | Monday 08 | Tuesday 09 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 16 | 15 | 14 | 14 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 21 | 20 | 18 | 18 | 18 | 17 | 17 | 17 | 12 | 12 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 15040 | 11500 | 7795 | 6672 | 3709 | 5632 | 5226 | 4423 | 3826 | 1832 | 3404 | 2297 | 2475 | 6278 | 20161 | 20104 | 18865 | 17269 | 12280 | 9762 | 8136 | 9602 | 16030 | 12315 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross | cross- off | cross | cross- on | cross | cross | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross |
High Tide / height (m) | 6:16AM 6.65 | 6:42PM 6.30 | 7:04AM 6.46 | 7:31PM 5.99 | 7:54AM 6.15 | |||||||||||||||||||
Low Tide / height (m) | 12:15AM 0.20 | 12:44PM 0.13 | 1:03AM 0.39 | 1:35PM 0.38 | 1:52AM 0.68 | 2:27PM 0.71 | ||||||||||||||||||
Sunday 07 | Monday 08 | Tuesday 09 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:04 | - | - | - | - | - | - | - | 8:06 | - | - | - | - | - | - | - | 8:07 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - | - | - | - | - | - | - | 4:17 | - |
 | |  | |  | |  |  | | | | |  | | | | |  | | | | | | | |
Rain (mm) | - | - | 1 | 1 | 1 | 2 | - | - | - | - | 1 | - | - | 1 | - | - | 3 | 6 | 3 | 1 | 1 | 2 | - | - |
| Temp. °C | 12 | 12 | 13 | 14 | 14 | 14 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 12 |
| Feels °C (?) | 7 | 9 | 10 | 8 | 7 | 8 | 5 | 6 | 6 | 5 | 6 | 6 | 5 | 6 | 5 | 7 | 5 | 3 | 1 | 2 | 3 | 7 | 8 | 8 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Previously used in our snow jackets for mountain conditions, PrimaLoft® technology is making its debut in the surf industry. The aim is to bring mountain-grade warmth to the waves.
Vancouver Island’s Day Of Days With Reed Platenius
Surf-Forecast recently helped the 21-year-old Canadian pro surfer and adventurer score some cold water perfection at home.
5 Reasons Why Costa Rica Is A Surfer (and Non Surfer) Paradise
With or without a surfboard, Costa Rica is a bucket list destination that has shown what a nation is capable of when nature is put first.
Read more
Discover more articles and updates in the Greenroom.
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.
Nearest