National Network of Regional Coastal Monitoring Programmes
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Note that these are real-time data and are not quality-controlled.
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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21-04-2025 18:00 | 49.89264 | -6.31341 | 0.71 | - | 6.9 | 4.5 | 271 | 57 | 11.8 | - | - |
| Date | Highest Hs 2025 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 27-01 | 5.4m | 4.43m | 10.90s |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15-01-2025 00:00 | 49.89295 | -6.31225 | 0.8 | - | 13.3 | 5 | 176 | 57 | 11.3 | - | - |
| 14-01-2025 23:30 | 49.89297 | -6.31257 | 0.87 | - | 13.3 | 5.2 | 235 | 49 | 11.3 | - | - |
| 14-01-2025 23:00 | 49.89280 | -6.31328 | 0.89 | - | 13.3 | 5.5 | 217 | 49 | 11.3 | - | - |
| 14-01-2025 22:30 | 49.89251 | -6.31383 | 0.97 | - | 12.5 | 5.8 | 198 | 57 | 11.3 | - | - |
| 14-01-2025 22:00 | 49.89215 | -6.31403 | 1.18 | - | 13.3 | 6.6 | 240 | 46 | 11.3 | - | - |
| 14-01-2025 21:30 | 49.89186 | -6.31396 | 1.27 | - | 11.1 | 6.6 | 238 | 38 | 11.3 | - | - |
| 14-01-2025 21:00 | 49.89176 | -6.31392 | 1.39 | - | 12.5 | 6.8 | 267 | 49 | 11.3 | - | - |
| 14-01-2025 20:30 | 49.89162 | -6.31390 | 1.82 | - | 13.3 | 7.8 | 231 | 34 | 11.3 | - | - |
| 14-01-2025 20:00 | 49.89161 | -6.31381 | 1.27 | - | 13.3 | 6.4 | 233 | 57 | 11.2 | - | - |
| 14-01-2025 19:30 | 49.89156 | -6.31383 | 1.49 | - | 11.8 | 6.7 | 226 | 51 | 11.2 | - | - |
| 14-01-2025 19:00 | 49.89128 | -6.31302 | 1.49 | - | 13.3 | 6.4 | 256 | 57 | 11.2 | - | - |
| 14-01-2025 18:30 | 49.89135 | -6.31306 | 1.46 | - | 13.3 | 6 | 233 | 49 | 11.3 | - | - |
| 14-01-2025 18:00 | 49.89136 | -6.31225 | 1.24 | - | 11.8 | 5.4 | 225 | 49 | 11.2 | - | - |
| 14-01-2025 17:30 | 49.89245 | -6.31152 | 1.15 | - | 10.5 | 5.2 | 219 | 53 | 11.3 | - | - |
| 14-01-2025 17:00 | 49.89264 | -6.31158 | 1.33 | - | 10.5 | 5.6 | 229 | 53 | 11.3 | - | - |
| 14-01-2025 16:30 | 49.89265 | -6.31156 | 1.24 | - | 11.8 | 5.3 | 243 | 57 | 11.3 | - | - |
| 14-01-2025 16:00 | 49.89266 | -6.31152 | 1.33 | - | 11.8 | 5.7 | 218 | 41 | 11.3 | - | - |
| 14-01-2025 15:30 | 49.89267 | -6.31154 | 1.3 | - | 12.5 | 5.4 | 235 | 49 | 11.3 | - | - |
| 14-01-2025 15:00 | 49.89271 | -6.31156 | 1.24 | - | 11.1 | 5.4 | 226 | 45 | 11.3 | - | - |
| 14-01-2025 14:30 | 49.89278 | -6.31165 | 1.3 | - | 11.8 | 5.5 | 212 | 60 | 11.4 | - | - |
| 14-01-2025 14:00 | 49.89285 | -6.31180 | 1.21 | - | 12.5 | 5.7 | 217 | 41 | 11.4 | - | - |
| 14-01-2025 13:30 | 49.89290 | -6.31199 | 1.21 | - | 13.3 | 5.5 | 215 | 41 | 11.4 | - | - |
| 14-01-2025 13:00 | 49.89294 | -6.31216 | 1.15 | - | 13.3 | 5.2 | 210 | 41 | 11.4 | - | - |
| 14-01-2025 12:30 | 49.89301 | -6.31270 | 0.97 | - | 11.8 | 4.8 | 214 | 45 | 11.3 | - | - |
| 14-01-2025 12:00 | 49.89297 | -6.31261 | 0.89 | - | 6.5 | 4.8 | 203 | 41 | 11.3 | - | - |
| 14-01-2025 11:30 | 49.89263 | -6.31383 | 0.92 | - | 12.5 | 5 | 267 | 57 | 11.3 | - | - |
| 14-01-2025 11:00 | 49.89222 | -6.31403 | 0.94 | - | 13.3 | 5.2 | 287 | 67 | 11.3 | - | - |
| 14-01-2025 10:30 | 49.89198 | -6.31401 | 1.02 | - | 13.3 | 5.4 | 229 | 67 | 11.3 | - | - |
| 14-01-2025 10:00 | 49.89191 | -6.31398 | 1.12 | - | 12.5 | 5.6 | 221 | 49 | 11.3 | - | - |
| 14-01-2025 09:30 | 49.89185 | -6.31394 | 1.27 | - | 12.5 | 5.9 | 243 | 34 | 11.2 | - | - |
| 14-01-2025 09:00 | 49.89185 | -6.31401 | 1.49 | - | 11.1 | 6.8 | 229 | 38 | 11.3 | - | - |
| 14-01-2025 08:30 | 49.89178 | -6.31394 | 1.6 | - | 12.5 | 6.7 | 216 | 49 | 11.2 | - | - |
| 14-01-2025 08:00 | 49.89167 | -6.31396 | 1.46 | - | 13.3 | 6.7 | 221 | 49 | 11.3 | - | - |
| 14-01-2025 07:30 | 49.89173 | -6.31383 | 1.53 | - | 12.5 | 6.5 | 249 | 41 | 11.2 | - | - |
| 14-01-2025 07:00 | 49.89149 | -6.31381 | 1.7 | - | 13.3 | 6.6 | 232 | 57 | 11.2 | - | - |
| 14-01-2025 06:30 | 49.89129 | -6.31295 | 1.39 | - | 12.5 | 5.4 | 253 | 57 | 11.2 | - | - |
| 14-01-2025 06:00 | 49.89133 | -6.31298 | 1.49 | - | 12.5 | 5.5 | 276 | 57 | 11.2 | - | - |
| 14-01-2025 05:30 | 49.89141 | -6.31212 | 1.21 | - | 11.1 | 5 | 214 | 53 | 11.2 | - | - |
| 14-01-2025 05:00 | 49.89210 | -6.31147 | 1.24 | - | 11.8 | 4.8 | 290 | 53 | 11.2 | - | - |
| 14-01-2025 04:30 | 49.89266 | -6.31167 | 1.3 | - | 11.1 | 5.1 | 204 | 73 | 11.3 | - | - |
| 14-01-2025 04:00 | 49.89264 | -6.31156 | 1.24 | - | 12.5 | 4.9 | 259 | 67 | 11.3 | - | - |
| 14-01-2025 03:30 | 49.89271 | -6.31162 | 1.27 | - | 12.5 | 4.8 | 217 | 67 | 11.3 | - | - |
| 14-01-2025 03:00 | 49.89273 | -6.31158 | 1.36 | - | 11.8 | 4.8 | 229 | 57 | 11.3 | - | - |
| 14-01-2025 02:30 | 49.89278 | -6.31165 | 1.3 | - | 5.3 | 4.6 | 195 | 53 | 11.3 | - | - |
| 14-01-2025 02:00 | 49.89278 | -6.31162 | 1.33 | - | 5.3 | 4.6 | 193 | 41 | 11.3 | - | - |
| 14-01-2025 01:30 | 49.89278 | -6.31158 | 1.27 | - | 5 | 4.6 | 181 | 38 | 11.3 | - | - |
| 14-01-2025 01:00 | 49.89279 | -6.31158 | 1.21 | - | 6.1 | 4.6 | 204 | 49 | 11.3 | - | - |
| 14-01-2025 00:30 | 49.89283 | -6.31169 | 1.24 | - | 5 | 4.4 | 191 | 38 | 11.3 | - | - |
| 14-01-2025 00:00 | 49.89286 | -6.31186 | 1.27 | - | 5.4 | 4.5 | 179 | 38 | 11.3 | - | - |
