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.
Rhyl Flats
Average values for 2009
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 0.63 | 5.5 | 3.2 | 237 | 5.6 |
| February | 0.62 | 4.9 | 3.2 | 266 | 5 |
| March | 0.8 | 4.5 | 3.4 | 275 | 6.9 |
| April | 0.38 | 3.9 | 2.9 | 213 | 9.1 |
| May | 0.6 | 3.9 | 3.1 | 224 | 11.3 |
| June | 0.43 | 3.8 | 2.9 | 198 | 14.4 |
| July | 0.58 | 3.9 | 3 | 258 | 16.7 |
| August | 0.57 | 3.8 | 3 | 265 | 17.1 |
| September | 1.1 | 5.1 | 3.7 | 266 | 16.2 |
| October | 0.56 | 3.7 | 2.9 | 185 | 13.1 |
| November | 1.06 | 5.2 | 3.7 | 261 | 11.4 |
| December | 0.8 | 4.7 | 3.4 | 228 | 7.6 |
