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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21-01-2025 00:30 | 49.89178 | -6.31396 | 1.33 | - | 8 | 5.2 | 205 | 34 | 11.2 | - | - |
| Date | Highest Hs 2025 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 08-01 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21-01-2025 00:30 | 49.89178 | -6.31396 | 1.33 | - | 8 | 5.2 | 205 | 34 | 11.2 | - | - |
| 21-01-2025 00:00 | 49.89164 | -6.31394 | 1.36 | - | 8 | 5.2 | 202 | 38 | 11.2 | - | - |
| 20-01-2025 23:30 | 49.89159 | -6.31381 | 1.36 | - | 8.3 | 5.3 | 235 | 34 | 11.2 | - | - |
| 20-01-2025 23:00 | 49.89126 | -6.31287 | 1.36 | - | 8 | 4.9 | 208 | 41 | 11.1 | - | - |
| 20-01-2025 22:30 | 49.89144 | -6.31336 | 1.39 | - | 11.8 | 5.1 | 280 | 67 | 11.1 | - | - |
| 20-01-2025 22:00 | 49.89135 | -6.31229 | 1.36 | - | 8.3 | 4.9 | 205 | 34 | 11.1 | - | - |
| 20-01-2025 21:30 | 49.89168 | -6.31171 | 1.27 | - | 7.4 | 4.9 | 207 | 41 | 11.1 | - | - |
| 20-01-2025 21:00 | 49.89267 | -6.31190 | 1.21 | - | 7.7 | 4.8 | 204 | 53 | 11.1 | - | - |
| 20-01-2025 20:30 | 49.89267 | -6.31167 | 1.27 | - | 7.1 | 4.9 | 202 | 38 | 11.2 | - | - |
| 20-01-2025 20:00 | 49.89265 | -6.31156 | 1.27 | - | 8.3 | 5 | 235 | 49 | 11.2 | - | - |
| 20-01-2025 19:30 | 49.89273 | -6.31167 | 1.3 | - | 6.9 | 5 | 194 | 49 | 11.2 | - | - |
| 20-01-2025 19:00 | 49.89271 | -6.31165 | 1.3 | - | 8.3 | 5 | 212 | 34 | 11.2 | - | - |
| 20-01-2025 18:30 | 49.89278 | -6.31169 | 1.3 | - | 8.3 | 5 | 214 | 41 | 11.2 | - | - |
| 20-01-2025 18:00 | 49.89275 | -6.31162 | 1.33 | - | 8.7 | 5.1 | 232 | 41 | 11.2 | - | - |
| 20-01-2025 17:30 | 49.89281 | -6.31173 | 1.33 | - | 8 | 5.1 | 201 | 34 | 11.2 | - | - |
| 20-01-2025 17:00 | 49.89288 | -6.31197 | 1.39 | - | 8.7 | 5.2 | 207 | 38 | 11.2 | - | - |
| 20-01-2025 16:30 | 49.89293 | -6.31212 | 1.49 | - | 8.7 | 5.4 | 235 | 34 | 11.2 | - | - |
| 20-01-2025 16:00 | 49.89299 | -6.31261 | 1.43 | - | 7.4 | 5.2 | 202 | 34 | 11.2 | - | - |
| 20-01-2025 15:30 | 49.89289 | -6.31328 | 1.46 | - | 6.9 | 5.4 | 224 | 34 | 11.2 | - | - |
| 20-01-2025 15:00 | 49.89263 | -6.31373 | 1.46 | - | 8 | 5.4 | 205 | 34 | 11.2 | - | - |
| 20-01-2025 14:30 | 49.89254 | -6.31381 | 1.46 | - | 8.3 | 5.5 | 236 | 28 | 11.2 | - | - |
| 20-01-2025 14:00 | 49.89233 | -6.31398 | 1.36 | - | 8.3 | 5.7 | 233 | 34 | 11.2 | - | - |
| 20-01-2025 13:30 | 49.89207 | -6.31405 | 1.49 | - | 8.3 | 6 | 229 | 28 | 11.2 | - | - |
| 20-01-2025 13:00 | 49.89181 | -6.31394 | 1.49 | - | 8 | 6.2 | 208 | 34 | 11.2 | - | - |
| 20-01-2025 12:30 | 49.89177 | -6.31396 | 1.6 | - | 8 | 6.3 | 221 | 41 | 11.2 | - | - |
| 20-01-2025 12:00 | 49.89166 | -6.31403 | 1.7 | - | 8.3 | 6.3 | 229 | 34 | 11.2 | - | - |
| 20-01-2025 11:30 | 49.89170 | -6.31386 | 1.78 | - | 7.7 | 6.4 | 204 | 34 | 11.2 | - | - |
| 20-01-2025 11:00 | 49.89153 | -6.31383 | 1.9 | - | 7.7 | 6.5 | 200 | 28 | 11.2 | - | - |
| 20-01-2025 10:30 | 49.89130 | -6.31293 | 1.78 | - | 7.7 | 6 | 193 | 31 | 11.2 | - | - |
| 20-01-2025 10:00 | 49.89142 | -6.31334 | 1.7 | - | 7.1 | 5.7 | 176 | 34 | 11.2 | - | - |
| 20-01-2025 09:30 | 49.89141 | -6.31218 | 1.7 | - | 8 | 5.6 | 190 | 34 | 11.2 | - | - |
| 20-01-2025 09:00 | 49.89177 | -6.31158 | 1.6 | - | 7.7 | 5.4 | 201 | 45 | 11.2 | - | - |
| 20-01-2025 08:30 | 49.89255 | -6.31158 | 1.6 | - | 6.9 | 5.4 | 202 | 49 | 11.2 | - | - |
| 20-01-2025 08:00 | 49.89264 | -6.31162 | 1.53 | - | 7.4 | 5.3 | 186 | 41 | 11.2 | - | - |
| 20-01-2025 07:30 | 49.89270 | -6.31167 | 1.63 | - | 7.1 | 5.4 | 205 | 57 | 11.2 | - | - |
| 20-01-2025 07:00 | 49.89277 | -6.31171 | 1.7 | - | 6.7 | 5.4 | 210 | 41 | 11.2 | - | - |
| 20-01-2025 06:30 | 49.89273 | -6.31158 | 1.67 | - | 7.4 | 5.5 | 205 | 53 | 11.2 | - | - |
| 20-01-2025 06:00 | 49.89273 | -6.31158 | 1.63 | - | 7.7 | 5.4 | 214 | 41 | 11.2 | - | - |
| 20-01-2025 05:30 | 49.89268 | -6.31145 | 1.63 | - | 6.2 | 5.2 | 191 | 49 | 11.2 | - | - |
| 20-01-2025 05:00 | 49.89273 | -6.31160 | 1.56 | - | 7.1 | 5.2 | 208 | 41 | 11.2 | - | - |
| 20-01-2025 04:30 | 49.89281 | -6.31180 | 1.56 | - | 7.4 | 5 | 222 | 45 | 11.2 | - | - |
| 20-01-2025 04:00 | 49.89283 | -6.31184 | 1.56 | - | 5.9 | 5 | 173 | 49 | 11.2 | - | - |
| 20-01-2025 03:30 | 49.89293 | -6.31214 | 1.49 | - | 7.4 | 5 | 211 | 38 | 11.2 | - | - |
| 20-01-2025 03:00 | 49.89299 | -6.31265 | 1.43 | - | 7.7 | 5 | 218 | 34 | 11.2 | - | - |
| 20-01-2025 02:30 | 49.89295 | -6.31315 | 1.36 | - | 7.7 | 5 | 226 | 45 | 11.2 | - | - |
| 20-01-2025 02:00 | 49.89281 | -6.31351 | 1.43 | - | 8.3 | 5.2 | 229 | 34 | 11.2 | - | - |
| 20-01-2025 01:30 | 49.89238 | -6.31398 | 1.53 | - | 7.4 | 5.4 | 221 | 35 | 11.2 | - | - |
| 20-01-2025 01:00 | 49.89197 | -6.31401 | 1.53 | - | 10 | 5.7 | 232 | 41 | 11.2 | - | - |
| 20-01-2025 00:30 | 49.89180 | -6.31394 | 1.6 | - | 7.7 | 5.9 | 221 | 35 | 11.2 | - | - |
| 20-01-2025 00:00 | 49.89175 | -6.31396 | 1.7 | - | 11.1 | 6 | 214 | 41 | 11.2 | - | - |
