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Surf Forecasts:
Treyarnon surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 am Friday 20 Mar 2026 GMTForecast update in hr min s Forecast update imminent
Treyarnon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Treyarnon sea temperature is
10.3° C
(Which is slightly warmer than usual)How big are the waves at Treyarnon today?
The current surf forecast for Treyarnon at 4PM is: 0.6m 11s primary swell from a West direction and 0.1m 15s secondary swell from a Southwest direction (forecast issued at 11:00am March 20). The wind direction is predicted to be glassy.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Mar) | 2.5ft (0.7m) | 12s |
| Afternoon (20 Mar) | 2ft (0.6m) | 11s |
| Evening (20 Mar) | 1.5ft (0.5m) | 11s |
Table - waves today at Treyarnon. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 132 | 91 | 88 | 86 | 59 | 55 | 53 | 86 | 87 | 192 | 176 | 173 | 173 | 183 | 195 | 145 | 239 | 229 | 277 | 269 | 205 | 195 | 192 | 192 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | glass | off | glass | cross | cross- off | cross- off | glass | cross- on | cross- on | cross | cross | cross | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross | cross- off |
High Tide / height (m) | 6:16PM 7.04 | 6:34AM 7.22 | 6:53PM 7.04 | 7:12AM 7.06 | 7:32PM 6.84 | |||||||||||||||||||
Low Tide / height (m) | 12:14PM -0.16 | 12:29AM -0.12 | 12:50PM -0.14 | 1:06AM -0.05 | 1:27PM 0.08 | 1:45AM 0.21 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||
| Sunrise | 6:24 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:35 | - | - | - | - |
 |  |  | |  |  | | | | | | | | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 |
| Feels °C (?) | 6 | 9 | 11 | 10 | 9 | 9 | 8 | 7 | 7 | 10 | 7 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 7 | 6 | 6 | 5 | 6 |
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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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