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 2023
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 0.96 | 5 | 3.6 | 282 | 7.8 |
| February | 0.67 | 4.3 | 3.3 | 261 | 7.3 |
| March | 0.66 | 5 | 3.2 | 250 | 7.5 |
| April | 0.5 | 4 | 3 | 219 | 9.6 |
| May | 0.44 | 3.7 | 2.9 | 235 | 13 |
| June | 0.36 | 3.3 | 2.7 | 185 | 15.8 |
| July | 0.65 | 4.1 | 3.1 | 273 | 16.9 |
| August | 0.73 | 4.2 | 3.2 | 274 | 17.5 |
| September | 0.51 | 4.1 | 3.2 | 229 | 17.6 |
| October | 0.64 | 4.1 | 3.2 | 207 | 14.8 |
| November | 0.97 | 4.9 | 3.6 | 268 | 11.5 |
| December | 1.1 | 5.1 | 3.7 | 250 | 9.6 |
