National Network of Regional Coastal Monitoring Programmes
« Return to map for other wave, tide and met stations.
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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 09-10-2026 13:00 | 49.89288 | -6.31147 | 1.36 | - | 8.7 | 4.8 | 322 | 34 | 15.4 | - | - |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 17-06-2026 00:00 | 49.89287 | -6.31321 | 0.66 | 1.19 | 4.5 | 3.6 | 208 | 34 | 13.8 | 4.6 | 0.99 |
| 16-06-2026 23:30 | 49.89254 | -6.31353 | 0.69 | 1.08 | 3.9 | 3.7 | 201 | 36 | 13.8 | 4.8 | 1.13 |
| 16-06-2026 23:00 | 49.89248 | -6.31356 | 0.71 | 1.01 | 10 | 3.8 | 340 | 69 | 13.8 | 5.3 | 1.3 |
| 16-06-2026 22:30 | 49.89246 | -6.31358 | 0.78 | 1.09 | 10.5 | 4 | 254 | 44 | 13.8 | 5.6 | 1.67 |
| 16-06-2026 22:00 | 49.89225 | -6.31356 | 0.85 | 1.23 | 10.5 | 4.3 | 260 | 44 | 13.8 | 6.1 | 2.15 |
| 16-06-2026 21:30 | 49.89211 | -6.31356 | 0.93 | 1.3 | 10 | 4.7 | 225 | 42 | 13.8 | 6.4 | 2.72 |
| 16-06-2026 21:00 | 49.89201 | -6.31360 | 0.88 | 1.26 | 9.1 | 4.8 | 225 | 51 | 13.8 | 6.6 | 2.49 |
| 16-06-2026 20:30 | 49.89188 | -6.31347 | 0.71 | 1.19 | 10 | 4.3 | 287 | 59 | 13.8 | 5.9 | 1.46 |
| 16-06-2026 20:00 | 49.89208 | -6.31351 | 0.87 | 1.47 | 9.1 | 4.8 | 252 | 58 | 13.8 | 6.3 | 2.34 |
| 16-06-2026 19:30 | 49.89173 | -6.31328 | 0.88 | 1.18 | 11.1 | 4.8 | 273 | 52 | 13.9 | 6.6 | 2.5 |
| 16-06-2026 19:00 | 49.89172 | -6.31255 | 0.86 | 1.15 | 9.1 | 4.2 | 245 | 52 | 13.9 | 5.8 | 2.11 |
| 16-06-2026 18:30 | 49.89172 | -6.31248 | 0.77 | 1.2 | 10 | 3.8 | 297 | 59 | 13.9 | 5.2 | 1.52 |
| 16-06-2026 18:00 | 49.89174 | -6.31214 | 0.75 | 1.29 | 4.2 | 3.5 | 191 | 29 | 13.9 | 4.8 | 1.32 |
| 16-06-2026 17:30 | 49.89274 | -6.31171 | 0.69 | 1.08 | 9.1 | 3.5 | 321 | 51 | 13.8 | 5.3 | 1.23 |
| 16-06-2026 17:00 | 49.89276 | -6.31158 | 0.68 | 0.99 | 10 | 3.5 | 322 | 41 | 13.8 | 5.3 | 1.21 |
| 16-06-2026 16:30 | 49.89283 | -6.31160 | 0.66 | 0.99 | 10 | 3.5 | 325 | 46 | 13.8 | 5.2 | 1.12 |
| 16-06-2026 16:00 | 49.89282 | -6.31158 | 0.67 | 0.91 | 9.1 | 3.4 | 321 | 48 | 13.8 | 5.1 | 1.12 |
| 16-06-2026 15:30 | 49.89291 | -6.31158 | 0.66 | 1.23 | 3.7 | 3.3 | 202 | 51 | 13.8 | 4.6 | 0.99 |
| 16-06-2026 15:00 | 49.89284 | -6.31150 | 0.64 | 0.84 | 4.2 | 3.4 | 212 | 38 | 13.8 | 4.8 | 0.96 |
| 16-06-2026 14:30 | 49.89290 | -6.31156 | 0.64 | 1.01 | 3.9 | 3.5 | 202 | 42 | 13.9 | 4.8 | 0.96 |
| 16-06-2026 14:00 | 49.89297 | -6.31165 | 0.58 | 0.85 | 3.9 | 3.4 | 217 | 42 | 13.9 | 4.7 | 0.78 |
| 16-06-2026 13:30 | 49.89297 | -6.31165 | 0.48 | 0.67 | 4 | 3.4 | 198 | 47 | 13.8 | 4.6 | 0.52 |
| 16-06-2026 13:00 | 49.89297 | -6.31175 | 0.48 | 0.75 | 3.9 | 3.4 | 208 | 40 | 13.9 | 4.5 | 0.51 |
| 16-06-2026 12:30 | 49.89300 | -6.31188 | 0.46 | 0.8 | 4 | 3.3 | 197 | 44 | 13.9 | 4.4 | 0.46 |
| 16-06-2026 12:00 | 49.89306 | -6.31210 | 0.5 | 0.67 | 4 | 3.3 | 214 | 49 | 13.9 | 4.2 | 0.52 |
| 16-06-2026 11:30 | 49.89310 | -6.31253 | 0.49 | 0.8 | 4.3 | 3.3 | 225 | 47 | 13.9 | 4.5 | 0.53 |
| 16-06-2026 11:00 | 49.89298 | -6.31298 | 0.49 | 0.78 | 4.3 | 3.4 | 205 | 53 | 13.8 | 4.5 | 0.53 |
| 16-06-2026 10:30 | 49.89280 | -6.31334 | 0.55 | 0.74 | 9.1 | 3.6 | 221 | 46 | 13.8 | 5.2 | 0.76 |
| 16-06-2026 10:00 | 49.89253 | -6.31351 | 0.58 | 0.87 | 9.1 | 3.7 | 226 | 43 | 13.8 | 5.1 | 0.84 |
| 16-06-2026 09:30 | 49.89220 | -6.31356 | 0.67 | 0.99 | 9.1 | 3.9 | 232 | 37 | 13.8 | 5.4 | 1.18 |
| 16-06-2026 09:00 | 49.89207 | -6.31358 | 0.66 | 0.91 | 9.1 | 4.1 | 222 | 32 | 13.8 | 5.9 | 1.25 |
| 16-06-2026 08:30 | 49.89197 | -6.31360 | 0.63 | 0.91 | 9.1 | 4.1 | 229 | 50 | 13.8 | 5.8 | 1.12 |
| 16-06-2026 08:00 | 49.89187 | -6.31330 | 0.5 | 0.82 | 9.1 | 3.8 | 229 | 59 | 13.9 | 5.5 | 0.67 |
| 16-06-2026 07:30 | 49.89208 | -6.31356 | 0.54 | 0.85 | 9.1 | 4 | 236 | 54 | 13.9 | 5.5 | 0.79 |
| 16-06-2026 07:00 | 49.89163 | -6.31319 | 0.56 | 0.82 | 9.1 | 4 | 248 | 44 | 13.8 | 5.8 | 0.89 |
| 16-06-2026 06:30 | 49.89169 | -6.31246 | 0.59 | 0.81 | 9.1 | 3.6 | 222 | 56 | 13.8 | 5.2 | 0.89 |
| 16-06-2026 06:00 | 49.89168 | -6.31225 | 0.51 | 0.74 | 9.1 | 3.4 | 226 | 55 | 13.8 | 5.1 | 0.66 |
| 16-06-2026 05:30 | 49.89207 | -6.31171 | 0.51 | 0.72 | 9.1 | 3.2 | 291 | 67 | 13.8 | 4.8 | 0.61 |
| 16-06-2026 05:00 | 49.89274 | -6.31160 | 0.51 | 0.68 | 9.1 | 3.4 | 326 | 53 | 13.8 | 5.2 | 0.66 |
| 16-06-2026 04:30 | 49.89278 | -6.31160 | 0.53 | 0.82 | 9.1 | 3.5 | 323 | 68 | 13.8 | 5.4 | 0.75 |
| 16-06-2026 04:00 | 49.89278 | -6.31150 | 0.54 | 0.75 | 9.1 | 3.5 | 305 | 60 | 13.8 | 5.2 | 0.74 |
| 16-06-2026 03:30 | 49.89286 | -6.31158 | 0.5 | 0.74 | 4 | 3.6 | 226 | 49 | 13.8 | 5.2 | 0.64 |
| 16-06-2026 03:00 | 49.89285 | -6.31154 | 0.48 | 0.72 | 9.1 | 3.6 | 312 | 55 | 13.8 | 5.5 | 0.62 |
| 16-06-2026 02:30 | 49.89289 | -6.31156 | 0.45 | 0.65 | 12.5 | 3.4 | 184 | 45 | 13.8 | 5.2 | 0.52 |
| 16-06-2026 02:00 | 49.89290 | -6.31160 | 0.44 | 0.64 | 12.5 | 3.5 | 200 | 48 | 13.8 | 5.4 | 0.51 |
| 16-06-2026 01:30 | 49.89292 | -6.31171 | 0.42 | 0.68 | 4.5 | 3.5 | 215 | 74 | 13.8 | 5 | 0.43 |
| 16-06-2026 01:00 | 49.89293 | -6.31180 | 0.42 | 0.57 | 4 | 3.5 | 297 | 74 | 13.8 | 4.8 | 0.42 |
| 16-06-2026 00:30 | 49.89301 | -6.31207 | 0.41 | 0.61 | 4.5 | 3.5 | 248 | 63 | 13.9 | 4.8 | 0.4 |
| 16-06-2026 00:00 | 49.89300 | -6.31283 | 0.41 | 0.6 | 5 | 3.5 | 290 | 51 | 13.9 | 4.7 | 0.39 |
