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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 07-09-2026 10:30 | 49.89297 | -6.31197 | 0.82 | 1.08 | 10 | 4.5 | 322 | 54 | 18.1 | 6.5 | 2.16 |
| Date | Highest Hs 2026 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 23-01 | 6.4m | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14-06-2026 00:00 | 49.89293 | -6.31169 | 0.54 | 0.7 | 10.5 | 4.7 | 321 | 58 | 13.8 | 7.1 | 1.02 |
| 13-06-2026 23:30 | 49.89295 | -6.31169 | 0.48 | 0.69 | 11.1 | 4.2 | 359 | 76 | 13.8 | 6.5 | 0.74 |
| 13-06-2026 23:00 | 49.89298 | -6.31186 | 0.53 | 0.75 | 10.5 | 4.3 | 183 | 74 | 13.8 | 7 | 0.97 |
| 13-06-2026 22:30 | 49.89299 | -6.31192 | 0.48 | 0.72 | 10.5 | 3.9 | 205 | 76 | 13.8 | 6.3 | 0.71 |
| 13-06-2026 22:00 | 49.89301 | -6.31218 | 0.51 | 0.71 | 10 | 4.3 | 145 | 55 | 13.8 | 6.7 | 0.85 |
| 13-06-2026 21:30 | 49.89299 | -6.31274 | 0.48 | 0.76 | 10.5 | 4.5 | 321 | 67 | 13.8 | 6.9 | 0.78 |
| 13-06-2026 21:00 | 49.89250 | -6.31353 | 0.52 | 0.77 | 11.8 | 5.3 | 328 | 75 | 14 | 7.8 | 1.03 |
| 13-06-2026 20:30 | 49.89225 | -6.31356 | 0.56 | 0.8 | 11.8 | 5.9 | 343 | 63 | 13.9 | 8.1 | 1.25 |
| 13-06-2026 20:00 | 49.89220 | -6.31353 | 0.55 | 0.76 | 11.8 | 6 | 305 | 58 | 13.9 | 8 | 1.19 |
| 13-06-2026 19:30 | 49.89212 | -6.31353 | 0.62 | 0.87 | 10.5 | 6.5 | 256 | 67 | 14.1 | 8.2 | 1.55 |
| 13-06-2026 19:00 | 49.89205 | -6.31356 | 0.63 | 0.93 | 11.1 | 6.5 | 318 | 42 | 14.1 | 8.2 | 1.59 |
| 13-06-2026 18:30 | 49.89197 | -6.31358 | 0.66 | 0.97 | 11.8 | 6.8 | 329 | 48 | 14.1 | 8.5 | 1.82 |
| 13-06-2026 18:00 | 49.89197 | -6.31345 | 0.71 | 1.07 | 11.1 | 6.7 | 325 | 44 | 13.8 | 8.4 | 2.07 |
| 13-06-2026 17:30 | 49.89200 | -6.31353 | 0.85 | 1.43 | 11.8 | 6.8 | 316 | 48 | 14.1 | 8.2 | 2.92 |
| 13-06-2026 17:00 | 49.89173 | -6.31317 | 0.92 | 1.51 | 10.5 | 6.7 | 294 | 55 | 14.2 | 8.1 | 3.38 |
| 13-06-2026 16:30 | 49.89194 | -6.31328 | 0.84 | 1.33 | 11.1 | 6.6 | 259 | 54 | 14.1 | 8.8 | 3.03 |
| 13-06-2026 16:00 | 49.89174 | -6.31238 | 0.68 | 1.09 | 10.5 | 6.2 | 274 | 67 | 14.2 | 8.4 | 1.89 |
| 13-06-2026 15:30 | 49.89183 | -6.31231 | 0.67 | 0.99 | 10.5 | 5.9 | 295 | 59 | 14.1 | 7.9 | 1.74 |
| 13-06-2026 15:00 | 49.89257 | -6.31152 | 0.7 | 1.03 | 10.5 | 6.1 | 330 | 34 | 14.4 | 8.1 | 1.95 |
| 13-06-2026 14:30 | 49.89276 | -6.31158 | 0.71 | 1.09 | 11.1 | 5.8 | 336 | 34 | 14.2 | 7.9 | 1.95 |
| 13-06-2026 14:00 | 49.89284 | -6.31162 | 0.71 | 1.18 | 10.5 | 5.5 | 330 | 32 | 15.2 | 7.3 | 1.81 |
| 13-06-2026 13:30 | 49.89286 | -6.31162 | 0.7 | 1.13 | 10.5 | 5.5 | 338 | 39 | 15.2 | 7.5 | 1.8 |
| 13-06-2026 13:00 | 49.89286 | -6.31160 | 0.62 | 0.91 | 10.5 | 5.2 | 333 | 48 | 15.1 | 7.2 | 1.36 |
| 13-06-2026 12:30 | 49.89285 | -6.31158 | 0.67 | 0.97 | 10.5 | 5.4 | 328 | 35 | 13.9 | 7.5 | 1.66 |
| 13-06-2026 12:00 | 49.89284 | -6.31158 | 0.63 | 0.88 | 11.1 | 5.2 | 328 | 39 | 14.4 | 7.5 | 1.45 |
| 13-06-2026 11:30 | 49.89289 | -6.31171 | 0.63 | 0.94 | 11.8 | 5 | 329 | 62 | 14.6 | 7.3 | 1.42 |
| 13-06-2026 11:00 | 49.89296 | -6.31199 | 0.58 | 0.87 | 10.5 | 4.5 | 321 | 51 | 14.3 | 6.4 | 1.06 |
| 13-06-2026 10:30 | 49.89297 | -6.31192 | 0.59 | 0.81 | 11.1 | 4.6 | 359 | 60 | 13.9 | 6.4 | 1.09 |
| 13-06-2026 10:00 | 49.89305 | -6.31227 | 0.55 | 0.79 | 12.5 | 4.7 | 70 | 75 | 13.9 | 6.8 | 1 |
| 13-06-2026 09:30 | 49.89290 | -6.31304 | 0.56 | 0.82 | 10.5 | 5 | 117 | 73 | 13.8 | 7 | 1.08 |
| 13-06-2026 09:00 | 49.89257 | -6.31341 | 0.57 | 1.03 | 10.5 | 5.3 | 267 | 58 | 13.8 | 7.4 | 1.18 |
| 13-06-2026 08:30 | 49.89227 | -6.31353 | 0.64 | 1.03 | 11.8 | 5.7 | 318 | 61 | 13.8 | 7.8 | 1.58 |
| 13-06-2026 08:00 | 49.89212 | -6.31351 | 0.66 | 0.98 | 11.8 | 5.7 | 287 | 51 | 13.8 | 7.6 | 1.62 |
| 13-06-2026 07:30 | 49.89213 | -6.31349 | 0.8 | 1.26 | 11.8 | 6.2 | 301 | 52 | 13.8 | 7.9 | 2.48 |
| 13-06-2026 07:00 | 49.89211 | -6.31351 | 0.79 | 1.25 | 11.1 | 5.7 | 325 | 40 | 13.8 | 7.2 | 2.21 |
| 13-06-2026 06:30 | 49.89205 | -6.31353 | 0.77 | 1.05 | 10.5 | 5.8 | 329 | 42 | 13.8 | 7.3 | 2.11 |
| 13-06-2026 06:00 | 49.89198 | -6.31358 | 0.71 | 1.08 | 12.5 | 5.8 | 326 | 37 | 13.8 | 7.8 | 1.93 |
| 13-06-2026 05:30 | 49.89203 | -6.31351 | 0.71 | 1.35 | 11.8 | 5.6 | 319 | 42 | 13.8 | 7.6 | 1.87 |
| 13-06-2026 05:00 | 49.89198 | -6.31356 | 0.79 | 1.14 | 11.1 | 5.7 | 318 | 45 | 13.8 | 7.4 | 2.26 |
| 13-06-2026 04:30 | 49.89179 | -6.31332 | 0.96 | 1.43 | 11.8 | 6.2 | 321 | 46 | 13.8 | 7.8 | 3.52 |
| 13-06-2026 04:00 | 49.89182 | -6.31302 | 0.89 | 1.53 | 11.8 | 5.9 | 302 | 57 | 13.8 | 8.2 | 3.2 |
| 13-06-2026 03:30 | 49.89174 | -6.31207 | 0.69 | 1.17 | 11.1 | 5.3 | 302 | 51 | 13.8 | 7.5 | 1.75 |
| 13-06-2026 03:00 | 49.89200 | -6.31195 | 0.78 | 1.11 | 9.1 | 5.4 | 322 | 45 | 13.8 | 7.6 | 2.26 |
| 13-06-2026 02:30 | 49.89252 | -6.31160 | 0.75 | 1.07 | 11.1 | 4.9 | 338 | 34 | 13.8 | 7.3 | 2 |
| 13-06-2026 02:00 | 49.89270 | -6.31152 | 0.81 | 1.36 | 8.3 | 5 | 322 | 41 | 13.8 | 7.1 | 2.29 |
| 13-06-2026 01:30 | 49.89272 | -6.31154 | 0.8 | 1.13 | 10 | 4.8 | 323 | 33 | 13.8 | 6.8 | 2.14 |
| 13-06-2026 01:00 | 49.89276 | -6.31154 | 0.81 | 1.25 | 10 | 4.7 | 326 | 36 | 13.8 | 6.7 | 2.16 |
| 13-06-2026 00:30 | 49.89278 | -6.31152 | 0.74 | 1.39 | 8.3 | 4.6 | 328 | 50 | 13.8 | 6.5 | 1.75 |
| 13-06-2026 00:00 | 49.89281 | -6.31156 | 0.79 | 1.19 | 8.3 | 4.8 | 319 | 40 | 13.8 | 6.7 | 2.04 |
