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.
Sandown Bay
Average values for 2025
| Month | Hs (m) | Tp (s) | Tz (s) | Dirp (degrees) | TSea (degrees C) |
|---|---|---|---|---|---|
| January | 0.66 | 8.8 | 4.2 | 165 | 8.8 |
| February | 0.69 | 7.5 | 3.9 | 148 | 7.7 |
| March | 0.38 | 5.9 | 3.5 | 147 | 8.5 |
| April | 0.5 | 5.1 | 3.6 | 140 | 10.8 |
| May | 0.42 | 4.8 | 3.3 | 145 | 14 |
| June | 0.39 | 4.7 | 3.2 | 174 | 16.5 |
| July | 0.31 | 4.8 | 3.3 | 174 | 19.4 |
| August | 0.43 | 5.2 | 3.4 | 160 | 19.7 |
| September | 0.63 | 5.6 | 3.6 | 163 | 18.1 |
| October | 0.59 | 6 | 3.8 | 162 | 15.7 |
| November | 0.75 | 5.8 | 3.9 | 157 | 14 |
| December | - | - | - | - | - |
