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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 07-11-2025 17:30 | 49.89266 | -6.31143 | 1.42 | 2.32 | 6.7 | 5.1 | 200 | 43 | 13.7 | 6.4 | 6.33 |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 07-11-2025 17:30 | 49.89266 | -6.31143 | 1.42 | 2.32 | 6.7 | 5.1 | 200 | 43 | 13.7 | 6.4 | 6.33 |
| 07-11-2025 17:00 | 49.89272 | -6.31147 | 1.52 | 2.53 | 6.7 | 5.2 | 225 | 43 | 13.7 | 6.4 | 7.21 |
| 07-11-2025 16:30 | 49.89274 | -6.31139 | 1.49 | 2.27 | 6.3 | 5.2 | 190 | 41 | 13.7 | 6.3 | 6.9 |
| 07-11-2025 16:00 | 49.89282 | -6.31150 | 1.46 | 2.03 | 5.9 | 5.1 | 180 | 43 | 13.6 | 6.3 | 6.62 |
| 07-11-2025 15:30 | 49.89280 | -6.31147 | 1.43 | 2.2 | 5.6 | 5.1 | 177 | 37 | 13.6 | 6.2 | 6.26 |
| 07-11-2025 15:00 | 49.89282 | -6.31143 | 1.37 | 2.09 | 6.7 | 5.1 | 193 | 48 | 13.7 | 6.1 | 5.64 |
| 07-11-2025 14:30 | 49.89286 | -6.31150 | 1.59 | 2.37 | 6.3 | 5.3 | 183 | 32 | 13.7 | 6.2 | 7.75 |
| 07-11-2025 14:00 | 49.89286 | -6.31158 | 1.52 | 2.26 | 5.6 | 4.9 | 165 | 29 | 13.7 | 5.8 | 6.6 |
| 07-11-2025 13:30 | 49.89290 | -6.31162 | 1.47 | 2.24 | 5.6 | 4.9 | 176 | 35 | 13.7 | 6.1 | 6.52 |
| 07-11-2025 13:00 | 49.89296 | -6.31177 | 1.58 | 2.84 | 6.7 | 4.9 | 197 | 34 | 13.7 | 6 | 7.37 |
| 07-11-2025 12:30 | 49.89309 | -6.31220 | 1.5 | 2.43 | 5.6 | 4.9 | 179 | 35 | 13.7 | 6 | 6.66 |
| 07-11-2025 12:00 | 49.89301 | -6.31321 | 1.7 | 2.56 | 5.9 | 5.2 | 180 | 34 | 13.6 | 6.2 | 8.86 |
| 07-11-2025 11:30 | 49.89259 | -6.31373 | 1.79 | 2.32 | 6.7 | 5.3 | 190 | 34 | 13.6 | 6.3 | 9.88 |
| 07-11-2025 11:00 | 49.89238 | -6.31390 | 1.67 | 2.84 | 5.9 | 5.1 | 167 | 37 | 13.6 | 6.3 | 8.64 |
| 07-11-2025 10:30 | 49.89227 | -6.31396 | 1.72 | 2.45 | 6.7 | 5.1 | 184 | 30 | 13.6 | 6.4 | 9.3 |
| 07-11-2025 10:00 | 49.89227 | -6.31407 | 1.73 | 2.51 | 6.7 | 5 | 196 | 27 | 13.6 | 6.4 | 9.47 |
| 07-11-2025 09:30 | 49.89203 | -6.31403 | 1.92 | 2.9 | 6.3 | 5.1 | 186 | 22 | 13.6 | 6.5 | 11.71 |
| 07-11-2025 09:00 | 49.89194 | -6.31403 | 1.84 | 2.65 | 5.3 | 5.1 | 190 | 36 | 13.7 | 6.6 | 10.9 |
| 07-11-2025 08:30 | 49.89187 | -6.31401 | 1.82 | 2.57 | 7.7 | 5.3 | 196 | 35 | 13.7 | 6.8 | 11.01 |
| 07-11-2025 08:00 | 49.89168 | -6.31383 | 1.74 | 3.03 | 10.5 | 5.1 | 226 | 39 | 13.6 | 6.6 | 9.87 |
| 07-11-2025 07:30 | 49.89179 | -6.31390 | 2 | 3.08 | 10 | 5.8 | 211 | 41 | 13.6 | 7.5 | 14.62 |
| 07-11-2025 07:00 | 49.89130 | -6.31298 | 1.8 | 2.97 | 11.1 | 5.3 | 246 | 62 | 13.6 | 7.2 | 11.46 |
| 07-11-2025 06:30 | 49.89136 | -6.31248 | 1.67 | 2.38 | 10 | 5.1 | 210 | 32 | 13.6 | 7.1 | 9.68 |
| 07-11-2025 06:00 | 49.89145 | -6.31214 | 1.59 | 2.34 | 8.3 | 5.3 | 196 | 31 | 13.7 | 7.3 | 9.04 |
| 07-11-2025 05:30 | 49.89230 | -6.31141 | 1.41 | 2.5 | 10.5 | 5.1 | 212 | 49 | 13.7 | 7.3 | 7.08 |
| 07-11-2025 05:00 | 49.89279 | -6.31152 | 1.46 | 2.62 | 7.7 | 5.3 | 205 | 45 | 13.7 | 7.3 | 7.64 |
| 07-11-2025 04:30 | 49.89284 | -6.31158 | 1.48 | 2.22 | 9.1 | 5.3 | 208 | 38 | 13.7 | 7.4 | 8 |
| 07-11-2025 04:00 | 49.89277 | -6.31145 | 1.62 | 2.18 | 9.1 | 5.6 | 207 | 45 | 13.6 | 7.5 | 9.6 |
| 07-11-2025 03:30 | 49.89281 | -6.31150 | 1.62 | 2.39 | 10 | 5.7 | 197 | 40 | 13.6 | 7.7 | 9.86 |
| 07-11-2025 03:00 | 49.89280 | -6.31145 | 1.42 | 1.96 | 10 | 5.4 | 203 | 47 | 13.6 | 7.5 | 7.41 |
| 07-11-2025 02:30 | 49.89284 | -6.31147 | 1.64 | 2.44 | 9.1 | 5.9 | 198 | 37 | 13.6 | 7.6 | 10 |
| 07-11-2025 02:00 | 49.89289 | -6.31152 | 1.52 | 2.24 | 8.3 | 5.6 | 193 | 38 | 13.6 | 7.4 | 8.41 |
| 07-11-2025 01:30 | 49.89292 | -6.31165 | 1.53 | 2.58 | 10 | 5.7 | 198 | 31 | 13.7 | 7.7 | 8.8 |
| 07-11-2025 01:00 | 49.89296 | -6.31175 | 1.54 | 2.08 | 10 | 5.6 | 196 | 28 | 13.7 | 7.4 | 8.62 |
| 07-11-2025 00:30 | 49.89304 | -6.31195 | 1.53 | 2.6 | 10.5 | 5.7 | 201 | 29 | 13.7 | 7.4 | 8.5 |
| 07-11-2025 00:00 | 49.89315 | -6.31261 | 1.61 | 2.56 | 9.1 | 6 | 194 | 29 | 13.7 | 7.6 | 9.71 |
| 06-11-2025 23:30 | 49.89289 | -6.31360 | 1.57 | 2.76 | 10 | 6 | 196 | 26 | 13.7 | 7.6 | 9.19 |
| 06-11-2025 23:00 | 49.89248 | -6.31394 | 1.56 | 2.68 | 8.3 | 6 | 186 | 33 | 13.7 | 7.6 | 9.07 |
| 06-11-2025 22:30 | 49.89224 | -6.31401 | 1.52 | 2.24 | 7.7 | 6.3 | 186 | 33 | 13.7 | 8 | 9.08 |
| 06-11-2025 22:00 | 49.89221 | -6.31405 | 1.44 | 2.21 | 10 | 6.3 | 210 | 38 | 13.7 | 8.3 | 8.45 |
| 06-11-2025 21:30 | 49.89207 | -6.31403 | 1.6 | 2.83 | 10 | 6.7 | 208 | 31 | 13.7 | 8.6 | 10.85 |
| 06-11-2025 21:00 | 49.89192 | -6.31396 | 1.87 | 2.55 | 10 | 7.3 | 194 | 27 | 13.7 | 8.9 | 15.31 |
| 06-11-2025 20:30 | 49.89178 | -6.31390 | 1.86 | 2.82 | 10.5 | 7.1 | 204 | 25 | 13.7 | 8.7 | 14.84 |
| 06-11-2025 20:00 | 49.89174 | -6.31390 | 2.17 | 3.6 | 10.5 | 7.5 | 203 | 30 | 13.7 | 8.9 | 20.56 |
| 06-11-2025 19:30 | 49.89186 | -6.31401 | 2.25 | 3.39 | 10.5 | 7.7 | 203 | 25 | 13.7 | 8.9 | 22.2 |
| 06-11-2025 19:00 | 49.89142 | -6.31358 | 2.75 | 4.33 | 10.5 | 7.8 | 196 | 28 | 13.7 | 8.9 | 33.06 |
| 06-11-2025 18:30 | 49.89129 | -6.31321 | 2.23 | 3.46 | 10 | 7.3 | 208 | 34 | 13.7 | 8.7 | 21.3 |
| 06-11-2025 18:00 | 49.89137 | -6.31248 | 2.26 | 3.56 | 10.5 | 6.9 | 201 | 33 | 13.7 | 8.5 | 21.29 |
| 06-11-2025 17:30 | 49.89145 | -6.31201 | 2.16 | 4.26 | 9.1 | 6.8 | 194 | 19 | 13.7 | 8.5 | 19.36 |
| 06-11-2025 17:00 | 49.89204 | -6.31147 | 1.91 | 3.14 | 9.1 | 6.6 | 198 | 27 | 13.7 | 8.4 | 15.01 |
