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.
St Mary's Sound
Average values for All years
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 1.61 | 9.1 | 5.4 | 215 | 10.9 |
| February | 1.83 | 9.2 | 5.5 | 209 | 10.3 |
| March | 1.47 | 9.3 | 5.3 | 214 | 10.2 |
| April | 1.2 | 8.4 | 4.9 | 200 | 10.7 |
| May | 0.89 | 8.3 | 4.8 | 219 | 12 |
| June | 0.83 | 7.7 | 4.6 | 220 | 13.7 |
| July | 0.76 | 7.4 | 4.5 | 240 | 15.2 |
| August | 0.86 | 7.5 | 4.6 | 234 | 15.7 |
| September | 1 | 8 | 4.8 | 217 | 15.3 |
| October | 1.37 | 8.4 | 5.1 | 212 | 14.2 |
| November | 1.52 | 8.7 | 5.2 | 212 | 13 |
| December | 1.77 | 8.9 | 5.4 | 211 | 11.9 |
