- Forecast
- Maps
- Live
- Weather State
- Spot Information
Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 pm Sunday 22 Mar 2026 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
10.7° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 3AM is: 0.9m 12s primary swell from a West-northwest direction and 0.4m 9s secondary swell from a Southwest direction, 0.5m 4s secondary swell from a North direction (forecast issued at 11:00pm March 22). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | 3.5ft (1.0m) | 13s |
| Afternoon (23 Mar) | 3.5ft (1.1m) | 12s |
| Evening (23 Mar) | 3.5ft (1.1m) | 12s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| 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) (?) | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 6 | 7 | 8 | 9 | 9 | 10 | 11 | 12 | 12 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 256 | 248 | 256 | 345 | 345 | 329 | 373 | 361 | 355 | 319 | 202 | 158 | 121 | 170 | 427 | 994 | 1689 | 2824 | 3882 | 4783 | 5700 | 5513 | 5724 | 4758 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | glass | off | cross- off | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | on | on | on | on | on | on |
High Tide / height (m) | 7:22PM 6.56 | 7:43AM 6.42 | 8:04PM 6.19 | 8:29AM 5.92 | 8:52PM 5.70 | 9:22AM 5.33 | ||||||||||||||||||
Low Tide / height (m) | 1:39AM 0.20 | 2:01PM 0.46 | 2:23AM 0.61 | 2:46PM 0.96 | 3:15AM 1.13 | 3:43PM 1.50 | ||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:13 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:38 | - | - | - | - | - | - | - | 6:40 |
 | |  | |  | |  | |  | | | | | | | | | | |  |  |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - |
| Temp. °C | 9 | 9 | 9 | 8 | 9 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 7 | 7 | 7 | 7 | 8 | 8 |
| Feels °C (?) | 5 | 6 | 6 | 6 | 7 | 8 | 8 | 9 | 7 | 6 | 6 | 5 | 6 | 4 | 3 | 2 | 1 | -2 | -5 | -5 | -5 | -4 | -3 | -2 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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