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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 08-06-2026 04:30 | 49.89213 | -6.31345 | 1.18 | 2.12 | 10.5 | 4.9 | 311 | 56 | 13.7 | 6.4 | 4.36 |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 19-04-2026 00:00 | 49.89247 | -6.31381 | 0.6 | 0.99 | 10.5 | 5.3 | 321 | 57 | 11.2 | 7.2 | 1.26 |
| 18-04-2026 23:30 | 49.89227 | -6.31396 | 0.63 | 0.93 | 10 | 5.1 | 309 | 70 | 11.2 | 7.1 | 1.38 |
| 18-04-2026 23:00 | 49.89213 | -6.31398 | 0.66 | 1.01 | 10.5 | 5.3 | 338 | 66 | 11.2 | 7.1 | 1.52 |
| 18-04-2026 22:30 | 49.89209 | -6.31398 | 0.83 | 1.18 | 11.1 | 6.1 | 287 | 58 | 11.2 | 8 | 2.72 |
| 18-04-2026 22:00 | 49.89201 | -6.31398 | 0.85 | 1.15 | 10.5 | 6.2 | 252 | 52 | 11.2 | 7.9 | 2.8 |
| 18-04-2026 21:30 | 49.89191 | -6.31398 | 1.03 | 1.63 | 10.5 | 7 | 242 | 54 | 11.3 | 8.9 | 4.64 |
| 18-04-2026 21:00 | 49.89182 | -6.31396 | 1.12 | 1.72 | 11.8 | 7.3 | 232 | 45 | 11.3 | 9 | 5.51 |
| 18-04-2026 20:30 | 49.89165 | -6.31392 | 1.04 | 1.72 | 11.8 | 6.8 | 260 | 60 | 11.3 | 8.5 | 4.49 |
| 18-04-2026 20:00 | 49.89169 | -6.31383 | 0.91 | 1.38 | 10 | 7.1 | 225 | 48 | 11.3 | 9 | 3.65 |
| 18-04-2026 19:30 | 49.89176 | -6.31383 | 1.16 | 2 | 10.5 | 7.3 | 242 | 48 | 11.3 | 8.9 | 5.89 |
| 18-04-2026 19:00 | 49.89129 | -6.31362 | 1.14 | 1.88 | 11.1 | 7.3 | 245 | 46 | 11.3 | 8.8 | 5.58 |
| 18-04-2026 18:30 | 49.89133 | -6.31274 | 1.13 | 1.58 | 11.8 | 6.8 | 278 | 55 | 11.3 | 8.6 | 5.42 |
| 18-04-2026 18:00 | 49.89135 | -6.31259 | 0.87 | 1.21 | 11.1 | 6.2 | 253 | 61 | 11.3 | 8.3 | 3.08 |
| 18-04-2026 17:30 | 49.89138 | -6.31248 | 0.81 | 1.18 | 11.1 | 6.1 | 248 | 68 | 11.4 | 8.3 | 2.68 |
| 18-04-2026 17:00 | 49.89196 | -6.31160 | 0.79 | 1.31 | 10 | 6.1 | 312 | 65 | 11.4 | 8.1 | 2.47 |
| 18-04-2026 16:30 | 49.89268 | -6.31145 | 0.86 | 1.3 | 11.1 | 5.9 | 318 | 59 | 11.4 | 7.7 | 2.78 |
| 18-04-2026 16:00 | 49.89284 | -6.31158 | 0.88 | 1.54 | 10.5 | 5.6 | 315 | 63 | 11.2 | 7.6 | 2.9 |
| 18-04-2026 15:30 | 49.89280 | -6.31147 | 0.82 | 1.23 | 10 | 5.5 | 315 | 47 | 11.3 | 7.4 | 2.44 |
| 18-04-2026 15:00 | 49.89284 | -6.31145 | 0.88 | 1.29 | 11.1 | 5.4 | 298 | 62 | 11.3 | 7.2 | 2.75 |
| 18-04-2026 14:30 | 49.89284 | -6.31137 | 0.89 | 1.41 | 9.1 | 5.7 | 309 | 57 | 11.3 | 7.6 | 2.96 |
| 18-04-2026 14:00 | 49.89286 | -6.31150 | 0.8 | 1.14 | 10 | 5.2 | 319 | 69 | 11.3 | 7 | 2.19 |
| 18-04-2026 13:30 | 49.89292 | -6.31158 | 0.82 | 1.15 | 10 | 5.1 | 302 | 73 | 11.4 | 7 | 2.31 |
| 18-04-2026 13:00 | 49.89293 | -6.31169 | 0.78 | 1.14 | 6.2 | 4.6 | 202 | 59 | 11.5 | 6.2 | 1.84 |
| 18-04-2026 12:30 | 49.89305 | -6.31205 | 0.76 | 1.22 | 7.1 | 4.9 | 202 | 53 | 11.4 | 6.4 | 1.82 |
| 18-04-2026 12:00 | 49.89264 | -6.31364 | 0.73 | 1.28 | 10 | 5.1 | 236 | 72 | 11.4 | 6.8 | 1.78 |
| 18-04-2026 11:30 | 49.89208 | -6.31394 | 0.8 | 1.18 | 10.5 | 5.3 | 263 | 61 | 11.4 | 7.1 | 2.23 |
| 18-04-2026 11:00 | 49.89190 | -6.31390 | 0.83 | 1.36 | 10 | 5.6 | 239 | 59 | 11.4 | 7.5 | 2.52 |
| 18-04-2026 10:30 | 49.89193 | -6.31394 | 0.87 | 1.25 | 11.1 | 5.8 | 252 | 72 | 11.3 | 7.7 | 2.87 |
| 18-04-2026 10:00 | 49.89194 | -6.31394 | 1.03 | 1.75 | 10.5 | 6.1 | 229 | 46 | 11.3 | 8 | 4.17 |
| 18-04-2026 09:30 | 49.89190 | -6.31394 | 1.29 | 2.16 | 11.1 | 6.9 | 221 | 30 | 11.3 | 8.6 | 6.98 |
| 18-04-2026 09:00 | 49.89188 | -6.31398 | 1.4 | 2.04 | 10 | 7 | 232 | 41 | 11.3 | 8.8 | 8.41 |
| 18-04-2026 08:30 | 49.89178 | -6.31396 | 1.43 | 2.12 | 11.8 | 7 | 238 | 42 | 11.3 | 8.9 | 8.89 |
| 18-04-2026 08:00 | 49.89165 | -6.31398 | 1.35 | 1.98 | 11.1 | 6.7 | 240 | 50 | 11.2 | 8.7 | 7.77 |
| 18-04-2026 07:30 | 49.89150 | -6.31338 | 1.39 | 2.09 | 10.5 | 6.8 | 240 | 38 | 11.2 | 8.9 | 8.43 |
| 18-04-2026 07:00 | 49.89164 | -6.31383 | 1.4 | 2.31 | 10.5 | 6.6 | 232 | 45 | 11.2 | 8.3 | 8.02 |
| 18-04-2026 06:30 | 49.89116 | -6.31313 | 1.48 | 2.1 | 10.5 | 6.6 | 224 | 44 | 11.2 | 8.3 | 8.89 |
| 18-04-2026 06:00 | 49.89138 | -6.31259 | 1.26 | 2.01 | 11.1 | 6.2 | 307 | 60 | 11.2 | 8 | 6.25 |
| 18-04-2026 05:30 | 49.89135 | -6.31246 | 1.11 | 1.54 | 11.8 | 5.7 | 262 | 62 | 11.2 | 7.6 | 4.6 |
| 18-04-2026 05:00 | 49.89144 | -6.31210 | 1 | 1.43 | 10.5 | 5.6 | 297 | 62 | 11.2 | 7.9 | 3.87 |
| 18-04-2026 04:30 | 49.89248 | -6.31143 | 1.08 | 1.73 | 6.7 | 5.3 | 267 | 62 | 11.2 | 7.1 | 4.07 |
| 18-04-2026 04:00 | 49.89280 | -6.31154 | 1.02 | 1.5 | 10 | 5.2 | 323 | 51 | 11.2 | 7.2 | 3.65 |
| 18-04-2026 03:30 | 49.89282 | -6.31150 | 1.01 | 1.7 | 8.3 | 5.1 | 307 | 56 | 11.2 | 7 | 3.48 |
| 18-04-2026 03:00 | 49.89290 | -6.31145 | 1.06 | 1.51 | 10 | 5.1 | 298 | 57 | 11.2 | 7 | 3.88 |
| 18-04-2026 02:30 | 49.89284 | -6.31137 | 1.05 | 1.36 | 11.1 | 5.1 | 329 | 72 | 11.2 | 7 | 3.81 |
| 18-04-2026 02:00 | 49.89287 | -6.31132 | 1.06 | 1.55 | 11.1 | 5.3 | 274 | 64 | 11.2 | 7.1 | 3.93 |
| 18-04-2026 01:30 | 49.89290 | -6.31152 | 1.04 | 1.46 | 5.9 | 4.9 | 224 | 56 | 11.2 | 6.6 | 3.5 |
| 18-04-2026 01:00 | 49.89290 | -6.31156 | 0.92 | 1.19 | 5.9 | 4.7 | 211 | 55 | 11.2 | 6.2 | 2.58 |
| 18-04-2026 00:30 | 49.89297 | -6.31173 | 0.94 | 1.37 | 5.9 | 4.8 | 211 | 53 | 11.2 | 6.3 | 2.73 |
| 18-04-2026 00:00 | 49.89306 | -6.31199 | 0.94 | 1.25 | 5.6 | 4.8 | 197 | 48 | 11.2 | 6.2 | 2.69 |
