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
Latest Waves Data
| Time (GMT) | Latitude | Longitude | Wave Height (m) | Max Wave Height (m) | Tpeak (s) | Tz (s) | Peak Direction (degrees) | Spread (degrees) | Sea Temp (°C) | Energy Period (s) | Wave Power (kW/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 26-11-2022 14:00 | 49.89298 | -6.31205 | 3.83 | 7.12 | 8.3 | 6.3 | 201 | 24 | 12.8 | 7.4 | 53.5 |
| Date | Highest Hs 2022 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 18-02 | 5m | 4.47m | 10.88s |
| Time (GMT) | Latitude | Longitude | Wave Height (m) | Max Wave Height (m) | Tpeak (s) | Tz (s) | Peak Direction (degrees) | Spread (degrees) | Sea Temp (°C) | Energy Period (s) | Wave Power (kW/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 26-11-2022 14:00 | 49.89298 | -6.31205 | 3.83 | 7.12 | 8.3 | 6.3 | 201 | 24 | 12.8 | 7.4 | 53.5 |
| 26-11-2022 13:30 | 49.89304 | -6.31235 | 3.81 | 5.52 | 8.3 | 6.6 | 201 | 30 | 12.8 | 7.6 | 54 |
| 26-11-2022 13:00 | 49.89309 | -6.31274 | 3.94 | 5.84 | 8.3 | 6.3 | 201 | 26 | 12.8 | 7.3 | 55.93 |
| 26-11-2022 12:30 | 49.89300 | -6.31321 | 3.03 | 5.27 | 7.7 | 5.8 | 186 | 36 | 12.8 | 7 | 31.53 |
| 26-11-2022 12:00 | 49.89287 | -6.31351 | 2.74 | 4.42 | 7.1 | 5.6 | 187 | 31 | 12.8 | 6.8 | 25.12 |
| 26-11-2022 11:30 | 49.89287 | -6.31351 | 2.83 | 3.98 | 7.7 | 5.7 | 191 | 30 | 12.8 | 6.9 | 27.07 |
| 26-11-2022 11:00 | 49.89264 | -6.31386 | 2.7 | 4.03 | 8.3 | 5.7 | 203 | 28 | 12.8 | 7 | 25.06 |
| 26-11-2022 10:30 | 49.89233 | -6.31401 | 2.63 | 3.75 | 7.7 | 5.8 | 198 | 30 | 12.8 | 7.1 | 24.18 |
| 26-11-2022 10:00 | 49.89204 | -6.31405 | 2.59 | 4.26 | 7.7 | 5.9 | 198 | 38 | 12.8 | 7.2 | 23.61 |
| 26-11-2022 09:30 | 49.89180 | -6.31407 | 2.71 | 4.4 | 7.1 | 5.9 | 187 | 33 | 12.8 | 7.1 | 25.63 |
| 26-11-2022 09:00 | 49.89163 | -6.31411 | 2.6 | 4.31 | 7.1 | 5.6 | 204 | 35 | 12.8 | 6.8 | 22.49 |
| 26-11-2022 08:30 | 49.89189 | -6.31398 | 2.48 | 3.69 | 7.7 | 5.8 | 211 | 34 | 12.8 | 7.1 | 21.41 |
| 26-11-2022 08:00 | 49.89148 | -6.31383 | 2.74 | 4.34 | 7.7 | 5.9 | 211 | 31 | 12.8 | 7 | 25.79 |
| 26-11-2022 07:30 | 49.89135 | -6.31321 | 2.48 | 4.27 | 6.7 | 5.6 | 191 | 29 | 12.8 | 7.1 | 21.45 |
| 26-11-2022 07:00 | 49.89143 | -6.31319 | 2.31 | 3.6 | 6.7 | 5.4 | 188 | 33 | 12.8 | 7 | 18.35 |
| 26-11-2022 06:30 | 49.89151 | -6.31199 | 2.19 | 4.19 | 5.9 | 5.1 | 181 | 35 | 12.8 | 6.6 | 15.64 |
| 26-11-2022 06:00 | 49.89286 | -6.31235 | 2.02 | 2.91 | 6.3 | 4.9 | 183 | 40 | 12.8 | 6.2 | 12.46 |
| 26-11-2022 05:30 | 49.89278 | -6.31180 | 1.86 | 3.19 | 5 | 4.7 | 176 | 27 | 12.8 | 6.2 | 10.45 |
| 26-11-2022 05:00 | 49.89272 | -6.31154 | 1.86 | 3 | 5.3 | 4.7 | 177 | 34 | 12.8 | 6 | 10.22 |
| 26-11-2022 04:30 | 49.89280 | -6.31175 | 1.82 | 2.53 | 5.6 | 4.6 | 194 | 48 | 12.9 | 6.2 | 10.06 |
| 26-11-2022 04:00 | 49.89279 | -6.31169 | 1.8 | 2.63 | 5.6 | 4.5 | 200 | 50 | 12.9 | 6 | 9.6 |
| 26-11-2022 03:30 | 49.89281 | -6.31162 | 1.81 | 2.57 | 4.8 | 4.5 | 183 | 39 | 12.9 | 6 | 9.69 |
| 26-11-2022 03:00 | 49.89284 | -6.31165 | 1.71 | 2.53 | 5.6 | 4.4 | 200 | 44 | 12.9 | 6 | 8.62 |
| 26-11-2022 02:30 | 49.89283 | -6.31160 | 1.66 | 2.81 | 5.9 | 4.4 | 207 | 46 | 12.9 | 5.9 | 7.99 |
| 26-11-2022 02:00 | 49.89285 | -6.31173 | 1.58 | 2.28 | 5.6 | 4.3 | 197 | 47 | 12.8 | 5.9 | 7.24 |
| 26-11-2022 01:30 | 49.89290 | -6.31182 | 1.46 | 2.13 | 5.3 | 4.4 | 187 | 41 | 12.9 | 6 | 6.32 |
| 26-11-2022 01:00 | 49.89292 | -6.31195 | 1.38 | 1.86 | 8.3 | 4.4 | 190 | 48 | 12.8 | 6.1 | 5.7 |
| 26-11-2022 00:30 | 49.89298 | -6.31216 | 1.33 | 2 | 7.1 | 4.4 | 191 | 47 | 12.8 | 6.5 | 5.61 |
| 26-11-2022 00:00 | 49.89303 | -6.31246 | 1.29 | 1.96 | 7.1 | 4.6 | 179 | 50 | 12.8 | 6.6 | 5.38 |
| 25-11-2022 23:30 | 49.89298 | -6.31313 | 1.3 | 1.73 | 10 | 4.8 | 194 | 46 | 12.8 | 6.9 | 5.69 |
| 25-11-2022 23:00 | 49.89271 | -6.31368 | 1.44 | 2.04 | 6.7 | 5.1 | 203 | 46 | 12.9 | 7.4 | 7.52 |
| 25-11-2022 22:30 | 49.89227 | -6.31398 | 1.52 | 2.42 | 10 | 5.5 | 221 | 45 | 12.9 | 7.9 | 8.94 |
| 25-11-2022 22:00 | 49.89201 | -6.31401 | 1.66 | 2.86 | 11.1 | 5.9 | 235 | 39 | 12.9 | 8.4 | 11.41 |
| 25-11-2022 21:30 | 49.89182 | -6.31398 | 1.87 | 2.69 | 11.8 | 6.2 | 257 | 52 | 12.9 | 8.3 | 14.32 |
| 25-11-2022 21:00 | 49.89169 | -6.31392 | 1.86 | 2.79 | 10.5 | 6.5 | 225 | 41 | 12.8 | 8.4 | 14.27 |
| 25-11-2022 20:30 | 49.89158 | -6.31405 | 1.72 | 3.28 | 11.1 | 6.3 | 208 | 46 | 12.8 | 8.4 | 12.21 |
| 25-11-2022 20:00 | 49.89171 | -6.31379 | 1.89 | 3.13 | 10.5 | 6.6 | 238 | 35 | 12.8 | 8.9 | 15.57 |
| 25-11-2022 19:30 | 49.89138 | -6.31364 | 2.26 | 3.45 | 9.1 | 6.9 | 224 | 33 | 12.8 | 8.8 | 22.14 |
| 25-11-2022 19:00 | 49.89139 | -6.31317 | 2.11 | 2.89 | 10.5 | 6.6 | 235 | 41 | 12.8 | 8.9 | 19.5 |
| 25-11-2022 18:30 | 49.89135 | -6.31300 | 1.88 | 2.72 | 11.8 | 6.2 | 290 | 48 | 12.8 | 8.7 | 15.05 |
| 25-11-2022 18:00 | 49.89137 | -6.31220 | 1.69 | 2.84 | 12.5 | 6 | 294 | 69 | 12.8 | 8.5 | 11.88 |
| 25-11-2022 17:30 | 49.89168 | -6.31165 | 1.57 | 2.14 | 7.7 | 5.3 | 211 | 63 | 12.8 | 7.7 | 9.3 |
| 25-11-2022 17:00 | 49.89259 | -6.31154 | 1.49 | 2.38 | 7.7 | 5.4 | 197 | 70 | 12.9 | 7.6 | 8.32 |
| 25-11-2022 16:30 | 49.89267 | -6.31154 | 1.54 | 2.5 | 7.7 | 5.4 | 231 | 64 | 12.9 | 7.8 | 9.11 |
| 25-11-2022 16:00 | 49.89275 | -6.31160 | 1.6 | 2.6 | 7.1 | 5.2 | 271 | 67 | 12.9 | 7.3 | 9.19 |
| 25-11-2022 15:30 | 49.89277 | -6.31150 | 1.56 | 2.26 | 7.7 | 5.3 | 219 | 69 | 12.9 | 7.4 | 8.88 |
| 25-11-2022 15:00 | 49.89280 | -6.31147 | 1.57 | 2.59 | 14.3 | 5.3 | 260 | 75 | 12.9 | 7.7 | 9.34 |
| 25-11-2022 14:30 | 49.89280 | -6.31147 | 1.57 | 2.31 | 7.1 | 5.3 | 235 | 59 | 12.9 | 7.3 | 8.78 |
| 25-11-2022 14:00 | 49.89281 | -6.31167 | 1.6 | 2.19 | 5.9 | 5.3 | 225 | 51 | 12.9 | 7.4 | 9.24 |
