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Porthtowan Surf Forecast
/ Cornwall (North) (60 surf breaks) /
Surf Forecasts:
Porthtowan surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 pm Thursday 27 Nov 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
12.9° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Porthtowan today?
The current surf forecast for Porthtowan at 4AM is: 3.5m 19s primary swell from a West direction and 0.1m 18s secondary swell from a Southwest direction, 1.6m 19s secondary swell from a West direction (forecast issued at 11:00pm November 27). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Nov) | 15ft (4.5m) | 16s |
| Afternoon (28 Nov) | 13ft (4.0m) | 15s |
| Evening (28 Nov) | 15ft (4.5m) | 14s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||||||||||
| 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) (?) | 9 | 10 | 19 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1079 | 1290 | 7690 | 9772 | 11088 | 8866 | 7440 | 6936 | 7418 | 4016 | 5415 | 4152 | 3319 | 2481 | 2216 | 1624 | 1208 | 1087 | 949 | 1030 | 934 | 741 | 661 | 577 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | cross | cross | cross | cross- on | cross | cross | cross | on | on | on | on | on | cross- on | cross- on | on | on | on | on | cross- on | cross | cross- off |
High Tide / height (m) | 9:45PM 4.73 | 10:14AM 4.96 | 10:53PM 4.69 | 11:24AM 4.99 | 12:05AM 4.84 | 12:33PM 5.19 | ||||||||||||||||||
Low Tide / height (m) | 4:06AM 1.83 | 4:51PM 1.73 | 5:15AM 1.83 | 6:00PM 1.60 | 6:26AM 1.67 | |||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:54 | - | - | - | - | - | - | - | 7:56 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:22 | - | - | - | - | - | - | - | 4:21 | - |
 |  | | |  |  | | |  | |  | |  |  | |  | |  | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | 1 | 8 | 7 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - |
| Temp. °C | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 10 | 9 | 9 | 10 | 9 | 8 | 9 | 9 | 8 | 8 | 9 | 9 | 10 | 10 |
| Feels °C (?) | 7 | 7 | 7 | 7 | 5 | 4 | 5 | 6 | 5 | 4 | 6 | 4 | 5 | 4 | 2 | 0 | 0 | 1 | 2 | 2 | 4 | 5 | 6 | 4 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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