National Network of Regional Coastal Monitoring Programmes
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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 HarmonicsAverage values for 2011
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | - | - | - | - | - |
| February | - | - | - | - | - |
| March | - | - | - | - | - |
| April | - | - | - | - | - |
| May | - | - | - | - | - |
| June | 0.1 | 8.3 | 2.1 | - | - |
| July | 0.11 | 9 | 2.2 | - | - |
| August | 0.11 | 9.1 | 2.1 | - | - |
| September | 0.15 | 7.8 | 2.2 | - | - |
| October | 0.14 | 8 | 2.2 | - | - |
| November | 0.1 | 8.2 | 2.3 | - | - |
| December | 0.14 | 4.2 | 2.3 | - | - |
