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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16-11-2025 11:30 | 49.89291 | -6.31180 | 1.63 | 2.37 | 10 | 5.4 | 201 | 16 | 13.5 | 7 | 9.17 |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16-10-2025 00:00 | 49.89245 | -6.31143 | 1.1 | 1.95 | 5.6 | 4.1 | 110 | 23 | 14.5 | 4.9 | 2.91 |
| 15-10-2025 23:30 | 49.89272 | -6.31154 | 1.07 | 1.7 | 5.6 | 4.3 | 106 | 21 | 14.5 | 5.1 | 2.84 |
| 15-10-2025 23:00 | 49.89281 | -6.31171 | 1.07 | 1.69 | 5.9 | 4.1 | 108 | 29 | 14.5 | 4.9 | 2.74 |
| 15-10-2025 22:30 | 49.89294 | -6.31195 | 1.07 | 1.83 | 5.9 | 4.1 | 108 | 24 | 14.5 | 4.9 | 2.74 |
| 15-10-2025 22:00 | 49.89303 | -6.31220 | 1.1 | 1.9 | 5.9 | 4.2 | 106 | 26 | 14.5 | 4.9 | 2.92 |
| 15-10-2025 21:30 | 49.89308 | -6.31285 | 1.08 | 1.6 | 5 | 4 | 111 | 22 | 14.5 | 4.8 | 2.74 |
| 15-10-2025 21:00 | 49.89284 | -6.31364 | 1.09 | 1.61 | 5.9 | 4 | 113 | 25 | 14.6 | 4.8 | 2.83 |
| 15-10-2025 20:30 | 49.89245 | -6.31401 | 1.1 | 1.65 | 5.6 | 4 | 117 | 29 | 14.6 | 4.8 | 2.86 |
| 15-10-2025 20:00 | 49.89220 | -6.31403 | 1.05 | 1.66 | 5.3 | 3.9 | 114 | 26 | 14.6 | 4.7 | 2.54 |
| 15-10-2025 19:30 | 49.89209 | -6.31401 | 1.09 | 2.04 | 5.6 | 4 | 113 | 25 | 14.6 | 4.7 | 2.77 |
| 15-10-2025 19:00 | 49.89197 | -6.31396 | 1.03 | 1.57 | 5.6 | 3.8 | 114 | 26 | 14.6 | 4.7 | 2.43 |
| 15-10-2025 18:30 | 49.89189 | -6.31392 | 1.02 | 1.46 | 5.6 | 3.8 | 108 | 25 | 14.6 | 4.7 | 2.39 |
| 15-10-2025 18:00 | 49.89186 | -6.31390 | 1.02 | 1.67 | 5.6 | 4 | 117 | 23 | 14.5 | 4.8 | 2.44 |
| 15-10-2025 17:30 | 49.89193 | -6.31394 | 0.94 | 1.73 | 5 | 3.9 | 108 | 25 | 14.5 | 4.8 | 2.07 |
| 15-10-2025 17:00 | 49.89186 | -6.31388 | 0.93 | 1.39 | 5.6 | 3.9 | 115 | 27 | 14.6 | 4.9 | 2.08 |
| 15-10-2025 16:30 | 49.89181 | -6.31386 | 0.98 | 1.56 | 5.6 | 3.9 | 113 | 24 | 14.6 | 4.7 | 2.23 |
| 15-10-2025 16:00 | 49.89181 | -6.31388 | 1.03 | 1.73 | 5.6 | 4 | 111 | 25 | 14.6 | 4.9 | 2.55 |
| 15-10-2025 15:30 | 49.89183 | -6.31390 | 1.07 | 1.93 | 5.6 | 4 | 106 | 23 | 14.6 | 4.9 | 2.74 |
| 15-10-2025 15:00 | 49.89184 | -6.31388 | 1.03 | 1.44 | 5.6 | 3.9 | 111 | 26 | 14.5 | 4.8 | 2.48 |
| 15-10-2025 14:30 | 49.89150 | -6.31332 | 1.16 | 1.74 | 5.9 | 4 | 113 | 21 | 14.6 | 4.8 | 3.16 |
| 15-10-2025 14:00 | 49.89165 | -6.31360 | 1.24 | 1.98 | 5.6 | 4 | 114 | 26 | 14.5 | 4.7 | 3.54 |
| 15-10-2025 13:30 | 49.89177 | -6.31375 | 1.21 | 2.05 | 5.6 | 4 | 117 | 23 | 14.5 | 4.8 | 3.42 |
| 15-10-2025 13:00 | 49.89172 | -6.31368 | 1.13 | 2.15 | 5.6 | 4 | 110 | 25 | 14.5 | 4.7 | 2.95 |
| 15-10-2025 12:30 | 49.89174 | -6.31371 | 1.14 | 1.85 | 5.9 | 4 | 110 | 21 | 14.5 | 4.8 | 3.04 |
| 15-10-2025 12:00 | 49.89204 | -6.31373 | 1.08 | 1.68 | 5.9 | 3.9 | 104 | 25 | 14.5 | 4.8 | 2.72 |
| 15-10-2025 11:30 | 49.89254 | -6.31188 | 1.09 | 1.7 | 5.9 | 3.9 | 103 | 21 | 14.5 | 4.7 | 2.74 |
| 15-10-2025 11:00 | 49.89264 | -6.31158 | 1.14 | 1.98 | 5.3 | 4.1 | 107 | 18 | 14.5 | 4.9 | 3.1 |
| 15-10-2025 10:30 | 49.89272 | -6.31169 | 1 | 1.63 | 5.9 | 4 | 106 | 20 | 14.5 | 4.9 | 2.38 |
| 15-10-2025 10:00 | 49.89283 | -6.31180 | 1.04 | 1.5 | 5.9 | 4.1 | 100 | 23 | 14.5 | 4.9 | 2.6 |
| 15-10-2025 09:30 | 49.89294 | -6.31197 | 1.01 | - | 5.9 | 4.1 | 104 | 23 | 14.5 | 5 | 2.52 |
| 15-10-2025 09:00 | 49.89297 | -6.31207 | 1.01 | 1.7 | 5.9 | 4.1 | 107 | 26 | 14.5 | 5 | 2.5 |
| 15-10-2025 08:00 | 49.89311 | -6.31287 | 1.07 | 1.66 | 5.9 | 4.1 | 101 | 23 | 14.6 | 5 | 2.82 |
| 15-10-2025 07:30 | 49.89300 | -6.31349 | 1.13 | 1.93 | 6.3 | 4.2 | 111 | 23 | 14.6 | 5.1 | 3.18 |
| 15-10-2025 07:00 | 49.89271 | -6.31388 | 1.13 | 2.21 | 5.9 | 4.2 | 108 | 20 | 14.6 | 5.1 | 3.18 |
| 15-10-2025 06:30 | 49.89245 | -6.31401 | 1.15 | 1.91 | 6.7 | 4.3 | 115 | 21 | 14.6 | 5.2 | 3.39 |
| 15-10-2025 06:00 | 49.89223 | -6.31403 | 1.18 | 2 | 6.3 | 4.3 | 110 | 26 | 14.6 | 5.2 | 3.54 |
| 15-10-2025 05:30 | 49.89209 | -6.31401 | 1.23 | 1.66 | 5.6 | 4.3 | 111 | 22 | 14.6 | 5.3 | 3.91 |
| 15-10-2025 05:00 | 49.89200 | -6.31396 | 1.19 | 1.93 | 5.3 | 4.1 | 111 | 26 | 14.5 | 5.1 | 3.52 |
| 15-10-2025 04:30 | 49.89191 | -6.31392 | 1.27 | 2.05 | 5.9 | 4.2 | 110 | 26 | 14.5 | 5 | 3.96 |
| 15-10-2025 04:00 | 49.89189 | -6.31394 | 1.32 | 2.07 | 6.7 | 4.3 | 113 | 28 | 14.5 | 5.2 | 4.44 |
| 15-10-2025 03:30 | 49.89192 | -6.31394 | 1.32 | 2.24 | 6.3 | 4.3 | 111 | 21 | 14.5 | 5.3 | 4.56 |
| 15-10-2025 03:00 | 49.89188 | -6.31392 | 1.35 | 2.03 | 5.3 | 4.3 | 110 | 27 | 14.5 | 5.2 | 4.64 |
| 15-10-2025 02:30 | 49.89147 | -6.31313 | 1.52 | 2.54 | 6.3 | 4.4 | 110 | 25 | 14.5 | 5.2 | 5.93 |
| 15-10-2025 02:00 | 49.89180 | -6.31383 | 1.59 | 2.37 | 6.3 | 4.5 | 108 | 26 | 14.5 | 5.3 | 6.56 |
| 15-10-2025 01:30 | 49.89210 | -6.31401 | 1.46 | 2.23 | 5.3 | 4.4 | 110 | 23 | 14.5 | 5.3 | 5.59 |
| 15-10-2025 01:00 | 49.89211 | -6.31398 | 1.46 | 2.06 | 5.9 | 4.4 | 113 | 20 | 14.6 | 5.3 | 5.55 |
| 15-10-2025 00:30 | 49.89180 | -6.31377 | 1.4 | 2.14 | 6.3 | 4.4 | 111 | 23 | 14.6 | 5.3 | 5.08 |
| 15-10-2025 00:00 | 49.89165 | -6.31360 | 1.45 | 2.4 | 5 | 4.3 | 103 | 25 | 14.6 | 5.2 | 5.33 |
