National Network of Regional Coastal Monitoring Programmes
« Return to map for other wave, tide and met stations.
Wave Spectra for 22/04/2026 08:00(i) 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.
Felixstowe
Wave Spectra for 22/04/2026 08:00(i) 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 (22/04/2026 08:00(i) GMT) | |
|---|---|
| Significant Wave Height (m) | 1.16 |
| Wave zero up crossing period (Spectrum Tz) (s) | 4 |
| Wind Wave Significant Wave Height (m) | 1.15 |
| Wind Wave Peak Period (s) | 5.9 |
| Wind Wave Peak Period Direction (°) | 79 |
| Swell Significant Wave Height (m) | 0.07 |
| Swell Peak Period (s) | 20 |
| Swell Peak Period Direction (°) | 62.6 |
| % Swell | 0.3 |
Wave Spectra for date 22/04/2026 08:00(i):
| Frequency (Hz) | Period (s) | Normalised Energy | Energy |
|---|---|---|---|
| 0.03 | 33.3 | 0 | 0 |
| 0.05 | 20 | 0.008 | 0.006 |
| 0.07 | 14.3 | 0.006 | 0.004 |
| 0.09 | 11.1 | 0.003 | 0.002 |
| 0.11 | 9.1 | 0.004 | 0.003 |
| 0.12 | 8.3 | 0.005 | 0.004 |
| 0.13 | 7.7 | 0.011 | 0.009 |
| 0.14 | 7.1 | 0.042 | 0.034 |
| 0.15 | 6.7 | 0.143 | 0.115 |
| 0.155 | 6.5 | 0.315 | 0.252 |
| 0.16 | 6.3 | 0.533 | 0.428 |
| 0.165 | 6.1 | 0.846 | 0.679 |
| 0.17 | 5.9 | 1 | 0.802 |
| 0.175 | 5.7 | 0.794 | 0.637 |
| 0.18 | 5.6 | 0.715 | 0.574 |
| 0.185 | 5.4 | 0.762 | 0.611 |
| 0.19 | 5.3 | 0.644 | 0.517 |
| 0.2 | 5 | 0.544 | 0.437 |
| 0.21 | 4.8 | 0.5 | 0.401 |
| 0.22 | 4.5 | 0.423 | 0.339 |
| 0.23 | 4.3 | 0.302 | 0.242 |
| 0.25 | 4 | 0.405 | 0.325 |
| 0.27 | 3.7 | 0.568 | 0.455 |
| 0.29 | 3.4 | 0.38 | 0.305 |
| 0.31 | 3.2 | 0.201 | 0.162 |
| 0.39 | 2.6 | 0.062 | 0.05 |
| 0.47 | 2.1 | 0.022 | 0.018 |
