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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13-02-2026 02:30 | 49.89255 | -6.31147 | 1.92 | 2.8 | 11.8 | 6 | 215 | 44 | 11.2 | 8.3 | 15.09 |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13-02-2026 02:30 | 49.89255 | -6.31147 | 1.92 | 2.8 | 11.8 | 6 | 215 | 44 | 11.2 | 8.3 | 15.09 |
| 13-02-2026 02:00 | 49.89262 | -6.31143 | 2 | 3.17 | 13.3 | 5.9 | 194 | 54 | 11.2 | 8.2 | 16.02 |
| 13-02-2026 01:30 | 49.89261 | -6.31143 | 2.02 | 3.28 | 11.8 | 6 | 210 | 42 | 11.2 | 8.2 | 16.42 |
| 13-02-2026 01:00 | 49.89266 | -6.31145 | 2.08 | 3.73 | 10.5 | 6.2 | 219 | 52 | 11.2 | 8.4 | 17.78 |
| 13-02-2026 00:30 | 49.89264 | -6.31143 | 1.98 | 3 | 12.5 | 5.9 | 211 | 50 | 11.2 | 8.2 | 15.81 |
| 13-02-2026 00:00 | 49.89265 | -6.31143 | 2.19 | 3.13 | 11.8 | 6.2 | 205 | 47 | 11.2 | 8.3 | 19.53 |
| 12-02-2026 23:30 | 49.89277 | -6.31154 | 2.3 | 3.89 | 9.1 | 6.3 | 219 | 38 | 11.2 | 8.3 | 21.58 |
| 12-02-2026 23:00 | 49.89281 | -6.31158 | 2.18 | 3.43 | 12.5 | 6 | 212 | 46 | 11.2 | 8.3 | 19.32 |
| 12-02-2026 22:30 | 49.89282 | -6.31152 | 2.35 | 3.74 | 13.3 | 6.3 | 196 | 54 | 11.2 | 8.7 | 23.51 |
| 12-02-2026 22:00 | 49.89276 | -6.31150 | 2.11 | 3 | 11.1 | 5.9 | 224 | 49 | 11.1 | 8.3 | 18.14 |
| 12-02-2026 21:30 | 49.89276 | -6.31150 | 2.38 | 3.36 | 12.5 | 6.1 | 208 | 37 | 11.2 | 8.3 | 22.99 |
| 12-02-2026 21:00 | 49.89266 | -6.31145 | 2.38 | 3.97 | 10.5 | 6.1 | 215 | 32 | 11.2 | 8.4 | 23.38 |
| 12-02-2026 20:30 | 49.89247 | -6.31135 | 2.43 | 3.93 | 10.5 | 6.3 | 211 | 32 | 11.2 | 8.7 | 25.32 |
| 12-02-2026 20:00 | 49.89217 | -6.31135 | 2.4 | 3.47 | 11.1 | 6.2 | 212 | 28 | 11.2 | 8.5 | 24.06 |
| 12-02-2026 19:30 | 49.89212 | -6.31139 | 2.44 | 3.63 | 10.5 | 6.3 | 211 | 27 | 11.2 | 8.8 | 25.76 |
| 12-02-2026 19:00 | 49.89222 | -6.31132 | 2.49 | 3.4 | 11.8 | 6.3 | 211 | 23 | 11.2 | 8.7 | 26.6 |
| 12-02-2026 18:30 | 49.89220 | -6.31132 | 2.65 | 3.73 | 13.3 | 6.5 | 204 | 34 | 11.2 | 8.7 | 30.1 |
| 12-02-2026 18:00 | 49.89200 | -6.31152 | 2.7 | 4.12 | 15.4 | 6.7 | 204 | 28 | 11.2 | 9.2 | 32.78 |
| 12-02-2026 17:30 | 49.89182 | -6.31218 | 2.87 | 4.73 | 11.8 | 6.8 | 218 | 22 | 11.2 | 9.1 | 36.68 |
| 12-02-2026 17:00 | 49.89161 | -6.31231 | 2.77 | 4.33 | 10.5 | 6.9 | 219 | 37 | 11.2 | 9.4 | 35.37 |
| 12-02-2026 16:30 | 49.89153 | -6.31212 | 2.74 | 4.36 | 10.5 | 6.7 | 224 | 39 | 11.2 | 9.2 | 33.81 |
| 12-02-2026 16:00 | 49.89164 | -6.31177 | 2.65 | 4.05 | 13.3 | 6.8 | 200 | 28 | 11.2 | 9.4 | 32.36 |
| 12-02-2026 15:30 | 49.89178 | -6.31150 | 2.73 | 4.87 | 14.3 | 6.8 | 203 | 36 | 11.3 | 9.3 | 33.96 |
| 12-02-2026 15:00 | 49.89190 | -6.31150 | 2.84 | 4.45 | 11.8 | 6.9 | 212 | 30 | 11.2 | 9.4 | 37.2 |
| 12-02-2026 14:30 | 49.89220 | -6.31137 | 2.83 | 5.13 | 14.3 | 6.8 | 207 | 32 | 11.2 | 9.6 | 37.57 |
| 12-02-2026 14:00 | 49.89221 | -6.31137 | 3.06 | 4.92 | 12.5 | 7 | 215 | 31 | 11.2 | 9.8 | 44.9 |
| 12-02-2026 13:30 | 49.89221 | -6.31132 | 2.96 | 4.44 | 13.3 | 7.1 | 215 | 36 | 11.2 | 9.9 | 42.6 |
| 12-02-2026 13:00 | 49.89222 | -6.31132 | 2.87 | 4.16 | 15.4 | 7 | 208 | 27 | 11.2 | 9.9 | 40.07 |
| 12-02-2026 12:30 | 49.89235 | -6.31132 | 2.93 | 5.02 | 14.3 | 7 | 210 | 30 | 11.2 | 10 | 42.18 |
| 12-02-2026 12:00 | 49.89242 | -6.31135 | 3.05 | 4.53 | 14.3 | 7.3 | 211 | 36 | 11.2 | 10 | 45.79 |
| 12-02-2026 11:30 | 49.89248 | -6.31135 | 3.23 | 4.69 | 14.3 | 7.7 | 197 | 31 | 11.1 | 10.8 | 55.04 |
| 12-02-2026 11:00 | 49.89253 | -6.31139 | 3.46 | 4.93 | 14.3 | 8 | 198 | 23 | 11.1 | 11 | 64.68 |
| 12-02-2026 10:30 | 49.89265 | -6.31145 | 3.25 | 5.21 | 12.5 | 7.7 | 208 | 30 | 11.1 | 10.8 | 55.81 |
| 12-02-2026 10:00 | 49.89253 | -6.31137 | 3.37 | 5.53 | 11.8 | 7.8 | 211 | 22 | 11.1 | 10.6 | 58.89 |
| 12-02-2026 09:30 | 49.89259 | -6.31143 | 3.2 | 4.95 | 13.3 | 7.5 | 198 | 30 | 11.1 | 10.5 | 52.87 |
| 12-02-2026 09:00 | 49.89247 | -6.31139 | 2.85 | 4.4 | 12.5 | 7.4 | 211 | 22 | 11.1 | 10.9 | 43.36 |
| 12-02-2026 08:30 | 49.89213 | -6.31137 | 2.8 | 3.6 | 13.3 | 7.1 | 207 | 24 | 11.1 | 10.3 | 39.64 |
| 12-02-2026 08:00 | 49.89167 | -6.31214 | 2.82 | 4.74 | 11.8 | 7.3 | 208 | 26 | 11.1 | 10.3 | 40.26 |
| 12-02-2026 07:30 | 49.89157 | -6.31265 | 2.77 | 4.93 | 10.5 | 7.1 | 211 | 26 | 11.1 | 10.1 | 37.87 |
| 12-02-2026 07:00 | 49.89152 | -6.31295 | 2.4 | 4.59 | 10.5 | 6.7 | 217 | 29 | 11.1 | 9.7 | 27.28 |
| 12-02-2026 06:30 | 49.89159 | -6.31323 | 2.55 | 3.75 | 12.5 | 7 | 194 | 33 | 11.1 | 9.9 | 31.43 |
| 12-02-2026 06:00 | 49.89152 | -6.31315 | 2.47 | 3.37 | 12.5 | 6.7 | 218 | 31 | 11.1 | 9.6 | 28.79 |
| 12-02-2026 05:30 | 49.89157 | -6.31325 | 2.38 | 3.59 | 10 | 6.3 | 208 | 28 | 11.1 | 9.1 | 25.42 |
| 12-02-2026 05:00 | 49.89149 | -6.31308 | 2.44 | 4.16 | 9.1 | 6.5 | 217 | 39 | 11.1 | 8.9 | 26.04 |
| 12-02-2026 04:30 | 49.89143 | -6.31298 | 2.54 | 3.68 | 10 | 6.5 | 217 | 35 | 11.1 | 9.2 | 29.04 |
| 12-02-2026 04:00 | 49.89145 | -6.31265 | 2.64 | 3.93 | 10.5 | 6.7 | 226 | 33 | 11.2 | 9.3 | 31.8 |
| 12-02-2026 03:30 | 49.89150 | -6.31225 | 2.56 | 4.1 | 10 | 6.5 | 212 | 33 | 11.1 | 8.8 | 28.14 |
| 12-02-2026 03:00 | 49.89146 | -6.31235 | 2.65 | 4.78 | 10 | 6.8 | 210 | 30 | 11.1 | 9.4 | 32.38 |
| 12-02-2026 02:30 | 49.89146 | -6.31225 | 2.48 | 3.94 | 10.5 | 6.5 | 197 | 29 | 11.2 | 9 | 27.13 |
| 12-02-2026 02:00 | 49.89154 | -6.31192 | 2.38 | 3.14 | 10 | 6.3 | 208 | 34 | 11.1 | 8.4 | 23.48 |
