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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15-05-2025 16:00 | 49.89251 | -6.31158 | 0.51 | - | 4.3 | 3.9 | 108 | 41 | 12.8 | - | - |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24-04-2025 00:00 | 49.89249 | -6.31165 | 0.92 | - | 7.4 | 5 | 305 | 57 | 12 | - | - |
| 23-04-2025 23:30 | 49.89255 | -6.31173 | 0.94 | - | 8 | 4.9 | 297 | 53 | 12 | - | - |
| 23-04-2025 23:00 | 49.89262 | -6.31177 | 0.94 | - | 8.7 | 5 | 285 | 57 | 12 | - | - |
| 23-04-2025 22:30 | 49.89265 | -6.31190 | 0.94 | - | 6.9 | 4.8 | 251 | 57 | 12 | - | - |
| 23-04-2025 22:00 | 49.89273 | -6.31210 | 0.92 | - | 7.4 | 4.6 | 255 | 53 | 12 | - | - |
| 23-04-2025 21:30 | 49.89281 | -6.31238 | 0.94 | - | 6.5 | 4.9 | 235 | 34 | 12 | - | - |
| 23-04-2025 21:00 | 49.89274 | -6.31330 | 0.92 | - | 11.8 | 5.1 | 326 | 49 | 11.9 | - | - |
| 23-04-2025 20:30 | 49.89217 | -6.31394 | 0.92 | - | 12.5 | 5.1 | 356 | 28 | 11.9 | - | - |
| 23-04-2025 20:00 | 49.89185 | -6.31401 | 0.89 | - | 7.1 | 5 | 211 | 49 | 11.9 | - | - |
| 23-04-2025 19:30 | 49.89174 | -6.31401 | 0.97 | - | 10.5 | 5.4 | 319 | 62 | 11.9 | - | - |
| 23-04-2025 19:00 | 49.89168 | -6.31394 | 0.94 | - | 8.3 | 5.6 | 214 | 49 | 11.9 | - | - |
| 23-04-2025 18:30 | 49.89170 | -6.31396 | 1.02 | - | 7.4 | 5.7 | 225 | 41 | 12 | - | - |
| 23-04-2025 18:00 | 49.89165 | -6.31398 | 1.04 | - | 7.7 | 5.8 | 228 | 53 | 12 | - | - |
| 23-04-2025 17:30 | 49.89162 | -6.31398 | 1.02 | - | 7.7 | 5.7 | 239 | 53 | 12 | - | - |
| 23-04-2025 17:00 | 49.89162 | -6.31396 | 1.1 | - | 6.7 | 5.7 | 252 | 34 | 12 | - | - |
| 23-04-2025 16:30 | 49.89158 | -6.31390 | 1.07 | - | 7.7 | 5.7 | 229 | 53 | 11.8 | - | - |
| 23-04-2025 16:00 | 49.89148 | -6.31381 | 1.12 | - | 7.1 | 5.8 | 219 | 38 | 11.8 | - | - |
| 23-04-2025 15:30 | 49.89119 | -6.31311 | 1.1 | - | 8 | 5.9 | 256 | 53 | 11.8 | - | - |
| 23-04-2025 15:00 | 49.89146 | -6.31362 | 1.07 | - | 9.1 | 5.7 | 287 | 57 | 11.8 | - | - |
| 23-04-2025 14:30 | 49.89129 | -6.31231 | 1.12 | - | 8.3 | 5.9 | 283 | 57 | 11.9 | - | - |
| 23-04-2025 14:00 | 49.89131 | -6.31216 | 0.97 | - | 10.5 | 5.3 | 312 | 49 | 11.8 | - | - |
| 23-04-2025 13:30 | 49.89158 | -6.31173 | 1.07 | - | 9.5 | 5.4 | 335 | 41 | 11.8 | - | - |
| 23-04-2025 13:00 | 49.89189 | -6.31158 | 1.18 | - | 9.1 | 5.2 | 335 | 49 | 11.8 | - | - |
| 23-04-2025 12:30 | 49.89212 | -6.31150 | 1.21 | - | 9.5 | 5.1 | 319 | 57 | 11.8 | - | - |
| 23-04-2025 12:00 | 49.89227 | -6.31156 | 1.24 | - | 6.5 | 5.1 | 275 | 41 | 11.8 | - | - |
| 23-04-2025 11:30 | 49.89241 | -6.31156 | 1.27 | - | 6.9 | 5.1 | 262 | 57 | 11.8 | - | - |
| 23-04-2025 11:00 | 49.89251 | -6.31162 | 1.24 | - | 10 | 5.1 | 329 | 45 | 11.7 | - | - |
| 23-04-2025 10:30 | 49.89247 | -6.31160 | 1.27 | - | 7.4 | 5 | 246 | 62 | 11.7 | - | - |
| 23-04-2025 10:00 | 49.89252 | -6.31167 | 1.27 | - | 7.7 | 4.9 | 263 | 57 | 11.7 | - | - |
| 23-04-2025 09:30 | 49.89247 | -6.31162 | 1.33 | - | 7.4 | 4.9 | 240 | 53 | 11.8 | - | - |
| 23-04-2025 09:00 | 49.89223 | -6.31154 | 1.24 | - | 7.4 | 4.8 | 228 | 53 | 11.7 | - | - |
| 23-04-2025 08:30 | 49.89160 | -6.31283 | 1.33 | - | 7.1 | 5.2 | 232 | 49 | 11.7 | - | - |
| 23-04-2025 08:00 | 49.89161 | -6.31364 | 1.43 | - | 7.7 | 5.2 | 235 | 62 | 11.7 | - | - |
| 23-04-2025 07:30 | 49.89161 | -6.31379 | 1.3 | - | 8 | 5 | 259 | 53 | 11.6 | - | - |
| 23-04-2025 07:00 | 49.89162 | -6.31386 | 1.39 | - | 8 | 5.2 | 271 | 53 | 11.6 | - | - |
| 23-04-2025 06:30 | 49.89156 | -6.31386 | 1.46 | - | 7.4 | 5.2 | 233 | 45 | 11.6 | - | - |
| 23-04-2025 06:00 | 49.89156 | -6.31386 | 1.39 | - | 7.7 | 5.1 | 246 | 49 | 11.6 | - | - |
| 23-04-2025 05:30 | 49.89150 | -6.31386 | 1.53 | - | 6.5 | 5.2 | 233 | 34 | 11.7 | - | - |
| 23-04-2025 05:00 | 49.89146 | -6.31375 | 1.39 | - | 7.4 | 5 | 218 | 49 | 11.6 | - | - |
| 23-04-2025 04:30 | 49.89145 | -6.31371 | 1.56 | - | 7.4 | 5.2 | 236 | 38 | 11.6 | - | - |
| 23-04-2025 04:00 | 49.89157 | -6.31388 | 1.53 | - | 7.4 | 5 | 214 | 38 | 11.6 | - | - |
| 23-04-2025 03:30 | 49.89144 | -6.31373 | 1.63 | - | 6.9 | 5.1 | 214 | 28 | 11.8 | - | - |
| 23-04-2025 03:00 | 49.89117 | -6.31278 | 1.46 | - | 8 | 4.8 | 214 | 45 | 11.8 | - | - |
| 23-04-2025 02:30 | 49.89129 | -6.31321 | 1.53 | - | 6.7 | 5.1 | 226 | 34 | 11.8 | - | - |
| 23-04-2025 02:00 | 49.89126 | -6.31238 | 1.53 | - | 7.4 | 5.2 | 208 | 41 | 11.8 | - | - |
| 23-04-2025 01:30 | 49.89128 | -6.31218 | 1.46 | - | 6.7 | 5.1 | 197 | 34 | 11.8 | - | - |
| 23-04-2025 01:00 | 49.89141 | -6.31188 | 1.46 | - | 7.1 | 5.1 | 204 | 49 | 11.8 | - | - |
| 23-04-2025 00:30 | 49.89163 | -6.31162 | 1.53 | - | 6.9 | 5.1 | 231 | 34 | 11.8 | - | - |
| 23-04-2025 00:00 | 49.89182 | -6.31156 | 1.6 | - | 6.9 | 5.2 | 225 | 34 | 11.8 | - | - |
