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 (Data was last updated 9 hours 20 minutes ago)
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24-03-2025 10:30 | 49.89207 | -6.31160 | 0.71 | - | 6.9 | 4.5 | 325 | 49 | 11 | - | - |
| Date | Highest Hs 2025 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 27-01 | 5.4m | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 14-01-2025 00:00 | 49.89286 | -6.31186 | 1.27 | - | 5.4 | 4.5 | 179 | 38 | 11.3 | - | - |
| 13-01-2025 23:30 | 49.89286 | -6.31182 | 1.18 | - | 5.7 | 4.4 | 195 | 38 | 11.3 | - | - |
| 13-01-2025 23:00 | 49.89292 | -6.31195 | 1.3 | - | 5.7 | 4.6 | 217 | 34 | 11.3 | - | - |
| 13-01-2025 22:30 | 49.89299 | -6.31225 | 1.24 | - | 5.1 | 4.6 | 166 | 41 | 11.3 | - | - |
| 13-01-2025 22:00 | 49.89303 | -6.31285 | 1.24 | - | 10.5 | 4.7 | 235 | 45 | 11.3 | - | - |
| 13-01-2025 21:30 | 49.89270 | -6.31377 | 1.43 | - | 12.5 | 5.2 | 257 | 49 | 11.3 | - | - |
| 13-01-2025 21:00 | 49.89209 | -6.31403 | 1.78 | - | 11.8 | 5.9 | 226 | 45 | 11.3 | - | - |
| 13-01-2025 20:30 | 49.89183 | -6.31398 | 2.02 | - | 12.5 | 6.1 | 210 | 34 | 11.3 | - | - |
| 13-01-2025 20:00 | 49.89173 | -6.31396 | 2.02 | - | 10 | 6.1 | 222 | 31 | 11.4 | - | - |
| 13-01-2025 19:30 | 49.89160 | -6.31390 | 2.02 | - | 6.2 | 5.7 | 218 | 34 | 11.3 | - | - |
| 13-01-2025 19:00 | 49.89157 | -6.31381 | 2.02 | - | 11.8 | 5.8 | 263 | 54 | 11.2 | - | - |
| 13-01-2025 18:30 | 49.89133 | -6.31326 | 1.98 | - | 11.8 | 5.6 | 245 | 41 | 11.2 | - | - |
| 13-01-2025 18:00 | 49.89132 | -6.31293 | 2.02 | - | 5.9 | 5.4 | 153 | 34 | 11.2 | - | - |
| 13-01-2025 17:30 | 49.89135 | -6.31229 | 1.78 | - | 6.1 | 5.1 | 172 | 34 | 11.2 | - | - |
| 13-01-2025 17:00 | 49.89188 | -6.31147 | 1.67 | - | 5.9 | 4.8 | 169 | 38 | 11.3 | - | - |
| 13-01-2025 16:30 | 49.89269 | -6.31169 | 1.56 | - | 6.1 | 4.7 | 176 | 49 | 11.3 | - | - |
| 13-01-2025 16:00 | 49.89273 | -6.31171 | 1.6 | - | 6.1 | 4.6 | 205 | 34 | 11.3 | - | - |
| 13-01-2025 15:30 | 49.89267 | -6.31158 | 1.82 | - | 5.7 | 4.7 | 173 | 34 | 11.3 | - | - |
| 13-01-2025 15:00 | 49.89273 | -6.31162 | 1.7 | - | 5.3 | 4.6 | 173 | 41 | 11.3 | - | - |
| 13-01-2025 14:30 | 49.89278 | -6.31165 | 1.78 | - | 5.9 | 4.6 | 194 | 41 | 11.3 | - | - |
| 13-01-2025 14:00 | 49.89279 | -6.31167 | 1.7 | - | 5.9 | 4.6 | 184 | 53 | 11.3 | - | - |
| 13-01-2025 13:30 | 49.89278 | -6.31169 | 1.74 | - | 6.1 | 4.6 | 207 | 41 | 11.3 | - | - |
| 13-01-2025 13:00 | 49.89288 | -6.31182 | 1.82 | - | 5.7 | 4.7 | 193 | 34 | 11.3 | - | - |
| 13-01-2025 12:30 | 49.89296 | -6.31212 | 1.74 | - | 5.6 | 4.6 | 212 | 34 | 11.3 | - | - |
| 13-01-2025 12:00 | 49.89296 | -6.31220 | 1.67 | - | 5.9 | 4.6 | 186 | 31 | 11.3 | - | - |
| 13-01-2025 11:30 | 49.89304 | -6.31276 | 1.63 | - | 6.1 | 4.6 | 198 | 38 | 11.3 | - | - |
| 13-01-2025 11:00 | 49.89298 | -6.31323 | 1.63 | - | 6.7 | 4.7 | 232 | 28 | 11.3 | - | - |
| 13-01-2025 10:30 | 49.89278 | -6.31368 | 1.63 | - | 6.1 | 4.6 | 193 | 38 | 11.3 | - | - |
| 13-01-2025 10:00 | 49.89259 | -6.31388 | 1.6 | - | 5.7 | 4.7 | 181 | 34 | 11.3 | - | - |
| 13-01-2025 09:30 | 49.89237 | -6.31401 | 1.74 | - | 6.9 | 4.9 | 231 | 28 | 11.3 | - | - |
| 13-01-2025 09:00 | 49.89203 | -6.31405 | 1.78 | - | 5.7 | 5.1 | 186 | 31 | 11.3 | - | - |
| 13-01-2025 08:30 | 49.89188 | -6.31401 | 1.78 | - | 6.7 | 5.2 | 207 | 31 | 11.3 | - | - |
| 13-01-2025 08:00 | 49.89177 | -6.31401 | 1.98 | - | 5.9 | 5.5 | 179 | 34 | 11.3 | - | - |
| 13-01-2025 07:30 | 49.89173 | -6.31396 | 2.06 | - | 6.2 | 5.5 | 214 | 34 | 11.3 | - | - |
| 13-01-2025 07:00 | 49.89155 | -6.31392 | 2.19 | - | 6.9 | 5.5 | 210 | 34 | 11.3 | - | - |
| 13-01-2025 06:30 | 49.89167 | -6.31392 | 2.15 | - | 6.7 | 5.4 | 217 | 28 | 11.2 | - | - |
| 13-01-2025 06:00 | 49.89134 | -6.31334 | 2.06 | - | 6.2 | 5.3 | 201 | 28 | 11.2 | - | - |
| 13-01-2025 05:30 | 49.89138 | -6.31313 | 1.9 | - | 6.2 | 4.8 | 201 | 34 | 11.2 | - | - |
| 13-01-2025 05:00 | 49.89146 | -6.31208 | 1.9 | - | 6.1 | 4.8 | 183 | 34 | 11.2 | - | - |
| 13-01-2025 04:30 | 49.89269 | -6.31197 | 1.86 | - | 5.9 | 4.7 | 174 | 34 | 11.2 | - | - |
| 13-01-2025 04:00 | 49.89280 | -6.31184 | 1.7 | - | 5.9 | 4.6 | 176 | 41 | 11.4 | - | - |
| 13-01-2025 03:30 | 49.89274 | -6.31167 | 1.7 | - | 6.1 | 4.6 | 166 | 41 | 11.3 | - | - |
| 13-01-2025 03:00 | 49.89273 | -6.31160 | 1.9 | - | 5.7 | 4.6 | 174 | 34 | 11.3 | - | - |
| 13-01-2025 02:30 | 49.89278 | -6.31167 | 1.78 | - | 5.7 | 4.5 | 191 | 45 | 11.3 | - | - |
| 13-01-2025 02:00 | 49.89273 | -6.31160 | 1.86 | - | 5.6 | 4.6 | 170 | 35 | 11.3 | - | - |
| 13-01-2025 01:30 | 49.89279 | -6.31167 | 1.94 | - | 5.9 | 4.6 | 188 | 38 | 11.3 | - | - |
| 13-01-2025 01:00 | 49.89281 | -6.31171 | 1.9 | - | 5.4 | 4.6 | 177 | 34 | 11.3 | - | - |
| 13-01-2025 00:30 | 49.89289 | -6.31188 | 1.78 | - | 5.6 | 4.4 | 176 | 34 | 11.3 | - | - |
| 13-01-2025 00:00 | 49.89289 | -6.31192 | 1.78 | - | 5.7 | 4.4 | 174 | 31 | 11.3 | - | - |
