National Network of Regional Coastal Monitoring Programmes
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Wave Spectra for 20/04/2026 18:01 GMT
Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.
Porthleven
Wave Spectra for 20/04/2026 18:01 GMT
Wave Spectra page developed in conjunction with Fugro GB Limited.
Wave Spectra page developed in conjunction with Fugro GB Limited.
| Sea and Swell Summary for (20/04/2026 18:01 GMT) | |
|---|---|
| Significant Wave Height (m) | 0.81 |
| Wave zero up crossing period (Spectrum Tz) (s) | 4.4 |
| Wind Wave Significant Wave Height (m) | 0.79 |
| Wind Wave Peak Period (s) | 6.3 |
| Wind Wave Peak Period Direction (°) | 179 |
| Swell Significant Wave Height (m) | 0.19 |
| Swell Peak Period (s) | 13.3 |
| Swell Peak Period Direction (°) | 216.6 |
| % Swell | 5.4 |
