National Network of Regional Coastal Monitoring Programmes
« Dychwelid at fap am donau, llanw a gorsafoedd tywydd eraill.
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.
Second Severn Crossing
Tide Levels and HarmonicsData Ton Ddiweddaraf
| Data Ton Ddiweddaraf | |
|---|---|
| Amser (ASG) | 20-06-2025 19:30 |
| Lledred | - |
| Hydred | - |
| Uchder ton (m) | 0.07 |
| Uchder uchaf ton (m) | 0.09 |
| Tbrig (s) | - |
| Tz (s) | 2.1 |
| Cyfeiriad mwyaf cyffredin (gradd) | - |
| Ymlediad (gradd) | - |
| Tymheredd y môr (°C) | - |
| Energy Period (s) | - |
| Wave Power (kW/m) | - |
Data llanw diweddaraf
| Data Llanw Diweddaraf | |
|---|---|
| Amser (ASG) | 20-06-2025 20:00 |
| Codiad | 2.8 |
| Gweddill | -0.12 |
| Penllanw nesaf | 02:35, 11.36 |
| Distyll nesaf | 20:11, 2.91 |
| Highest Date | 27-04-2025 |
| Highest Value | 15.33m |
| Lowest Date | 31-03-2025 |
| Lowest Value | 0.03m |
