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 2021
Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
---|---|---|---|---|---|
January | 1.43 | 8.4 | 5.2 | 194 | 10.3 |
February | 2.49 | 9.6 | 6 | 188 | 10 |
March | 1.19 | 9.2 | 5 | 226 | 10.1 |
April | 0.99 | 7.3 | 4.4 | 152 | 10.5 |
May | 1.28 | 8.3 | 5 | 226 | 11.2 |
June | 0.67 | 8.3 | 4.6 | 227 | 13.2 |
July | 0.76 | 6.9 | 4.5 | 222 | 15.2 |
August | 0.77 | 6.8 | 4.3 | 214 | 15.5 |
September | 0.86 | 8.1 | 4.8 | 214 | 15.8 |
October | 1.31 | 8.2 | 5.1 | 224 | 14.4 |
November | 0.92 | 9.1 | 4.9 | 218 | 13.2 |
December | 1.83 | 8.4 | 5.3 | 200 | 11.8 |