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.
Penzance
Average values for 2025
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 1.1 | 9.9 | 5.1 | 183 | 10.5 |
| February | 1.01 | 8.7 | 4.7 | 175 | 9.8 |
| March | 0.55 | 9.8 | 4.4 | 173 | 10.3 |
| April | 0.61 | 7.6 | 3.9 | 170 | 11.7 |
| May | 0.36 | 7.9 | 3.7 | 169 | 14.4 |
| June | 0.44 | 7.4 | 3.9 | 181 | 15.1 |
| July | 0.35 | 7.2 | 4.1 | 183 | 16.4 |
| August | 0.46 | 7.8 | 3.9 | 174 | 17.3 |
| September | 0.72 | 7.5 | 4.3 | 179 | 15.7 |
| October | 0.69 | 8.1 | 4.2 | 178 | 14.5 |
| November | 1.45 | 8.5 | 5.1 | 188 | 13.9 |
| December | - | - | - | - | - |
