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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20-01-2026 08:30 | 49.89181 | -6.31390 | 3.67 | 5.85 | 9.1 | 7.1 | 190 | 29 | 10.9 | 8.4 | 55.22 |
| Date | Highest Hs 2026 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 08-01 | 5.3m | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 20-01-2026 08:30 | 49.89181 | -6.31390 | 3.67 | 5.85 | 9.1 | 7.1 | 190 | 29 | 10.9 | 8.4 | 55.22 |
| 20-01-2026 08:00 | 49.89139 | -6.31293 | 3.72 | 6.38 | 9.1 | 7 | 193 | 25 | 10.9 | 8.3 | 56.27 |
| 20-01-2026 07:30 | 49.89161 | -6.31334 | 4 | 6.53 | 9.1 | 7.1 | 184 | 24 | 10.9 | 8.3 | 64.79 |
| 20-01-2026 07:00 | 49.89144 | -6.31300 | 3.72 | 6.4 | 9.1 | 6.7 | 186 | 24 | 10.9 | 7.9 | 53.69 |
| 20-01-2026 06:30 | 49.89244 | -6.31175 | 3.85 | 5.53 | 9.1 | 6.5 | 183 | 23 | 10.9 | 7.7 | 56.21 |
| 20-01-2026 06:00 | 49.89295 | -6.31180 | 3.76 | 5.53 | 8.3 | 6.3 | 181 | 36 | 11 | 7.4 | 51.03 |
| 20-01-2026 05:30 | 49.89305 | -6.31199 | 3.83 | 6.32 | 8.3 | 6.3 | 184 | 34 | 11 | 7.4 | 53.31 |
| 20-01-2026 05:00 | 49.89290 | -6.31167 | 3.77 | 6.72 | 7.7 | 6.1 | 176 | 27 | 11 | 7 | 49.04 |
| 20-01-2026 04:30 | 49.89287 | -6.31162 | 3.26 | 5.16 | 6.7 | 5.6 | 172 | 34 | 11 | 6.6 | 34.18 |
| 20-01-2026 04:00 | 49.89294 | -6.31165 | 3.1 | 4.61 | 6.3 | 5.4 | 176 | 34 | 11 | 6.4 | 30.12 |
| 20-01-2026 03:30 | 49.89297 | -6.31169 | 2.84 | 4.39 | 5.9 | 5.2 | 176 | 34 | 11 | 6.2 | 24.49 |
| 20-01-2026 03:00 | 49.89294 | -6.31162 | 2.65 | 5.23 | 6.3 | 5.1 | 170 | 34 | 11 | 6 | 20.84 |
| 20-01-2026 02:30 | 49.89294 | -6.31162 | 2.37 | 3.35 | 5.6 | 4.7 | 172 | 38 | 11 | 5.7 | 15.71 |
| 20-01-2026 02:00 | 49.89295 | -6.31171 | 2.15 | 3 | 5.6 | 4.6 | 190 | 36 | 11 | 5.5 | 12.45 |
| 20-01-2026 01:30 | 49.89298 | -6.31177 | 1.94 | 2.79 | 5.6 | 4.3 | 194 | 36 | 11 | 5.3 | 9.87 |
| 20-01-2026 01:00 | 49.89306 | -6.31197 | 1.72 | 2.59 | 5 | 4.2 | 188 | 34 | 11 | 5.2 | 7.53 |
| 20-01-2026 00:30 | 49.89309 | -6.31210 | 1.56 | 2.2 | 5 | 4.1 | 194 | 38 | 11 | 5.2 | 6.27 |
| 20-01-2026 00:00 | 49.89312 | -6.31231 | 1.36 | 2.21 | 5 | 3.9 | 193 | 42 | 11 | 5.4 | 4.93 |
| 19-01-2026 23:30 | 49.89313 | -6.31248 | 1.22 | 1.89 | 4.6 | 4.1 | 198 | 43 | 11 | 5.9 | 4.32 |
| 19-01-2026 23:00 | 49.89312 | -6.31276 | 1.23 | 2.06 | 10 | 4.4 | 236 | 46 | 11 | 6.9 | 5.12 |
| 19-01-2026 22:30 | 49.89296 | -6.31345 | 1.31 | 2.13 | 10 | 4.9 | 241 | 51 | 11 | 7.6 | 6.36 |
| 19-01-2026 22:00 | 49.89222 | -6.31405 | 1.41 | 2.08 | 8.3 | 5.4 | 239 | 41 | 11 | 7.9 | 7.67 |
| 19-01-2026 21:30 | 49.89189 | -6.31401 | 1.43 | 2.15 | 11.1 | 5.7 | 250 | 47 | 11 | 8.1 | 8.14 |
| 19-01-2026 21:00 | 49.89179 | -6.31394 | 1.59 | 2.83 | 10 | 6.3 | 222 | 34 | 11 | 8.4 | 10.37 |
| 19-01-2026 20:30 | 49.89172 | -6.31392 | 1.4 | 2.26 | 7.7 | 6.1 | 242 | 49 | 11 | 7.9 | 7.57 |
| 19-01-2026 20:00 | 49.89167 | -6.31377 | 1.4 | 2.27 | 8.3 | 6.2 | 248 | 43 | 10.9 | 8 | 7.68 |
| 19-01-2026 19:30 | 49.89164 | -6.31381 | 1.64 | 2.32 | 10.5 | 6.5 | 228 | 39 | 11 | 8.2 | 10.79 |
| 19-01-2026 19:00 | 49.89148 | -6.31310 | 1.49 | 2.24 | 9.1 | 6.3 | 239 | 51 | 11 | 8.6 | 9.35 |
| 19-01-2026 18:30 | 49.89137 | -6.31255 | 1.31 | 2.37 | 8.3 | 5.8 | 249 | 49 | 11 | 8.1 | 6.86 |
| 19-01-2026 18:00 | 49.89141 | -6.31268 | 1.18 | 2.01 | 8.3 | 5.7 | 252 | 53 | 11 | 7.9 | 5.4 |
| 19-01-2026 17:30 | 49.89239 | -6.31145 | 1.19 | 1.57 | 8.3 | 5.7 | 314 | 41 | 11 | 7.9 | 5.47 |
| 19-01-2026 17:00 | 49.89266 | -6.31145 | 1.1 | 1.56 | 9.1 | 5.4 | 316 | 51 | 11 | 7.6 | 4.5 |
| 19-01-2026 16:30 | 49.89265 | -6.31143 | 1.2 | 1.94 | 8.3 | 5.4 | 312 | 46 | 11 | 7.1 | 5.02 |
| 19-01-2026 16:00 | 49.89268 | -6.31145 | 1.23 | 1.95 | 6.7 | 5.3 | 314 | 49 | 11 | 7.1 | 5.27 |
| 19-01-2026 15:30 | 49.89277 | -6.31147 | 1.11 | 1.89 | 8.3 | 5.2 | 305 | 41 | 11 | 7 | 4.23 |
| 19-01-2026 15:00 | 49.89279 | -6.31152 | 1.11 | 1.82 | 6.7 | 5.1 | 278 | 57 | 11 | 6.9 | 4.18 |
| 19-01-2026 14:30 | 49.89285 | -6.31158 | 1.06 | 1.48 | 7.7 | 4.9 | 253 | 57 | 11 | 6.7 | 3.69 |
| 19-01-2026 14:00 | 49.89286 | -6.31162 | 1 | 1.4 | 5.9 | 4.6 | 214 | 46 | 11 | 6.1 | 3 |
| 19-01-2026 13:30 | 49.89287 | -6.31167 | 0.95 | 1.59 | 5.6 | 4.4 | 207 | 43 | 11 | 6 | 2.68 |
| 19-01-2026 13:00 | 49.89290 | -6.31173 | 1.07 | 1.84 | 5.6 | 4.5 | 210 | 37 | 11 | 5.7 | 3.22 |
| 19-01-2026 12:30 | 49.89292 | -6.31175 | 1 | 1.43 | 5.9 | 4.4 | 207 | 38 | 11 | 5.4 | 2.67 |
| 19-01-2026 12:00 | 49.89287 | -6.31180 | 1.01 | 1.76 | 5.6 | 4.5 | 201 | 38 | 11 | 5.7 | 2.85 |
| 19-01-2026 11:30 | 49.89296 | -6.31225 | 1.05 | 1.48 | 6.3 | 4.7 | 214 | 34 | 11 | 5.7 | 3.11 |
| 19-01-2026 11:00 | 49.89300 | -6.31293 | 1.13 | 1.76 | 5.9 | 4.8 | 204 | 38 | 11 | 5.8 | 3.63 |
| 19-01-2026 10:30 | 49.89290 | -6.31343 | 1.07 | 2.79 | 6.3 | 4.8 | 217 | 40 | 11 | 6 | 3.39 |
| 19-01-2026 10:00 | 49.89250 | -6.31388 | 1.24 | 1.86 | 6.7 | 5.2 | 225 | 33 | 11 | 6.3 | 4.79 |
| 19-01-2026 09:30 | 49.89212 | -6.31403 | 1.41 | 2.32 | 6.3 | 5.4 | 219 | 34 | 11 | 6.6 | 6.4 |
| 19-01-2026 09:00 | 49.89188 | -6.31398 | 1.66 | 2.4 | 6.7 | 5.5 | 221 | 25 | 11 | 6.6 | 8.95 |
| 19-01-2026 08:30 | 49.89179 | -6.31396 | 1.7 | 2.6 | 5.9 | 5.4 | 208 | 36 | 11 | 6.4 | 9.09 |
| 19-01-2026 08:00 | 49.89175 | -6.31394 | 1.77 | 2.62 | 5.9 | 5.2 | 210 | 33 | 11 | 6.1 | 9.43 |
