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Porthtowan Surf Forecast
/ Cornwall (North) (59 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 6 am Thursday 18 Sep 2025 BST
How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 11AM is: 2.5m 11s primary swell from a West-southwest direction (forecast issued at 06:00am September 18). An open ocean swell of 0.1m 19s is not directed at the surf break, a second open ocean swell of 0.1m 19s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 8ft (2.5m) | 12s |
| Afternoon (18 Sep) | 8ft (2.4m) | 11s |
| Evening (18 Sep) | 7ft (2.2m) | 10s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2991 | 2560 | 1913 | 1510 | 1347 | 1080 | 863 | 811 | 788 | 821 | 763 | 692 | 550 | 452 | 383 | 367 | 300 | 294 | 239 | 203 | 88 | 449 | 2074 | 2079 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off | cross- off | cross | cross- on | cross- on |
High Tide / height (m) | 3:25AM 4.85 | 3:51PM 5.25 | 4:20AM 5.26 | 4:39PM 5.68 | 5:02AM 5.64 | 5:18PM 6.03 | ||||||||||||||||||
Low Tide / height (m) | 9:52AM 1.56 | 10:25PM 1.19 | 10:43AM 1.14 | 11:09PM 0.82 | 11:22AM 0.79 | 11:45PM 0.53 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:29 | - | - | - | - | - | - | - | 7:27 | - | - | - | - | - | - | - | 7:23 | - | - |
 |  |  | | | | | | | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 17 | 18 | 18 | 17 | 16 | 16 | 16 | 15 | 17 | 18 | 18 | 16 | 16 | 16 | 15 | 15 | 16 | 17 | 17 | 15 | 13 | 13 |
| Feels °C (?) | 13 | 13 | 13 | 14 | 14 | 15 | 13 | 14 | 15 | 14 | 15 | 14 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 12 | 9 | 8 | 3 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Cornwall (North)
Cross-shore wind at Porthtowan have swung cross-off (moderate winds from the SSW at Culdrose Airport 22 km from Porthtowan). A 1.9m groundswell from the W
22 km away, 1 h 23 min ago
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.
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