National Network of Regional Coastal Monitoring Programmes
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Note that these are real-time data and are not quality-controlled.
Start Bay
Latest Waves Data (Data was last updated 8 days 15 hours 33 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 27-11-2025 11:30 | 50.34290 | -3.44288 | 1.15 | 1.84 | 4.4 | 4 | 208 | 18 | 12.9 | 4.8 | 3.09 |
| Date | Highest Hs 2025 | Storm Alert Threshold (0.25 yr Return Period Hs) |
Swell Alert Threshold (0.25 yr Return Period Te) |
|---|---|---|---|
| 26-01 | 4.2m | 2.98m | 12.50s |
| 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 18-01-2025 00:00 | 50.29185 | -3.61611 | 0.44 | 0.78 | 10.5 | 4.4 | 183 | 39 | 10.5 | 7.7 | 0.73 |
| 17-01-2025 23:30 | 50.29185 | -3.61609 | 0.51 | 0.96 | 10 | 4.8 | 180 | 20 | 10.5 | 8.3 | 1.05 |
| 17-01-2025 23:00 | 50.29211 | -3.61639 | 0.48 | 0.73 | 11.1 | 4.7 | 179 | 31 | 10.5 | 7.7 | 0.87 |
| 17-01-2025 22:30 | 50.29274 | -3.61600 | 0.53 | 0.83 | 11.8 | 4.8 | 180 | 30 | 10.5 | 8.2 | 1.13 |
| 17-01-2025 22:00 | 50.29275 | -3.61568 | 0.56 | 1.05 | 11.8 | 5.1 | 187 | 19 | 10.6 | 8.7 | 1.33 |
| 17-01-2025 21:30 | 50.29274 | -3.61551 | 0.5 | 0.77 | 12.5 | 4.6 | 179 | 39 | 10.6 | 8.2 | 1 |
| 17-01-2025 21:00 | 50.29271 | -3.61545 | 0.51 | 0.66 | 11.1 | 4.6 | 184 | 23 | 10.6 | 8.4 | 1.07 |
| 17-01-2025 20:30 | 50.29272 | -3.61545 | 0.54 | 0.82 | 12.5 | 4.5 | 194 | 35 | 10.6 | 8.7 | 1.24 |
| 17-01-2025 20:00 | 50.29271 | -3.61545 | 0.51 | 0.75 | 12.5 | 4.4 | 197 | 21 | 10.6 | 8.3 | 1.06 |
| 17-01-2025 19:30 | 50.29271 | -3.61540 | 0.54 | 0.84 | 12.5 | 4.5 | 193 | 23 | 10.6 | 9 | 1.28 |
| 17-01-2025 19:00 | 50.29274 | -3.61545 | 0.52 | 0.71 | 11.8 | 4 | 188 | 23 | 10.6 | 7.7 | 1.03 |
| 17-01-2025 18:30 | 50.29275 | -3.61549 | 0.52 | 0.8 | 13.3 | 3.7 | 180 | 46 | 10.6 | 6.9 | 0.92 |
| 17-01-2025 18:00 | 50.29278 | -3.61575 | 0.52 | 0.67 | 12.5 | 3.7 | 184 | 25 | 10.6 | 6.2 | 0.82 |
| 17-01-2025 17:30 | 50.29253 | -3.61641 | 0.49 | 0.62 | 14.3 | 3.8 | 183 | 39 | 10.5 | 6.4 | 0.75 |
| 17-01-2025 17:00 | 50.29208 | -3.61645 | 0.47 | 0.68 | 13.3 | 3.6 | 193 | 44 | 10.4 | 5.6 | 0.6 |
| 17-01-2025 16:30 | 50.29201 | -3.61641 | 0.48 | 0.66 | 14.3 | 4 | 188 | 38 | 10.5 | 6.8 | 0.77 |
| 17-01-2025 16:00 | 50.29196 | -3.61639 | 0.45 | 0.67 | 13.3 | 3.8 | 196 | 57 | 10.5 | 6.2 | 0.62 |
| 17-01-2025 15:30 | 50.29194 | -3.61637 | 0.46 | 0.62 | 13.3 | 4 | 187 | 39 | 10.6 | 6.8 | 0.71 |
| 17-01-2025 15:00 | 50.29193 | -3.61637 | 0.46 | 0.65 | 14.3 | 3.8 | 177 | 49 | 10.6 | 6.1 | 0.64 |
| 17-01-2025 14:30 | 50.29198 | -3.61645 | 0.46 | 0.67 | 14.3 | 3.8 | 200 | 64 | 10.5 | 6.2 | 0.65 |
| 17-01-2025 14:00 | 50.29193 | -3.61635 | 0.49 | 0.69 | 11.8 | 4.1 | 187 | 42 | 10.6 | 6.8 | 0.8 |
| 17-01-2025 13:30 | 50.29190 | -3.61630 | 0.55 | 0.9 | 13.3 | 4.3 | 177 | 40 | 10.5 | 7.1 | 1.05 |
| 17-01-2025 13:00 | 50.29185 | -3.61622 | 0.55 | 0.77 | 13.3 | 4.6 | 177 | 42 | 10.5 | 7.5 | 1.11 |
| 17-01-2025 12:30 | 50.29184 | -3.61615 | 0.56 | 0.77 | 13.3 | 4.6 | 200 | 46 | 10.6 | 7.3 | 1.13 |
| 17-01-2025 12:00 | 50.29183 | -3.61603 | 0.59 | 0.98 | 10 | 4.4 | 162 | 25 | 10.5 | 7.1 | 1.22 |
| 17-01-2025 11:30 | 50.29182 | -3.61596 | 0.62 | 0.95 | 13.3 | 4.5 | 172 | 39 | 10.5 | 7.1 | 1.34 |
| 17-01-2025 11:00 | 50.29185 | -3.61590 | 0.66 | 1.04 | 10.5 | 4.6 | 179 | 31 | 10.5 | 7 | 1.5 |
| 17-01-2025 10:30 | 50.29184 | -3.61577 | 0.69 | 1.03 | 11.1 | 4.8 | 184 | 27 | 10.5 | 7.3 | 1.71 |
| 17-01-2025 10:00 | 50.29226 | -3.61517 | 0.72 | 1.27 | 12.5 | 4.7 | 172 | 35 | 10.5 | 7.6 | 1.93 |
| 17-01-2025 09:30 | 50.29267 | -3.61542 | 0.68 | 1.03 | 11.8 | 4.8 | 191 | 32 | 10.6 | 7.6 | 1.73 |
| 17-01-2025 09:00 | 50.29269 | -3.61545 | 0.7 | 0.92 | 12.5 | 4.6 | 183 | 29 | 10.6 | 7.5 | 1.79 |
| 17-01-2025 08:30 | 50.29270 | -3.61547 | 0.7 | 1.1 | 12.5 | 4.7 | 191 | 24 | 10.6 | 7.6 | 1.82 |
| 17-01-2025 08:00 | 50.29269 | -3.61547 | 0.78 | 1.16 | 13.3 | 4.9 | 188 | 31 | 10.6 | 8.4 | 2.51 |
| 17-01-2025 07:30 | 50.29271 | -3.61545 | 0.77 | 1.09 | 13.3 | 4.8 | 188 | 29 | 10.6 | 8.6 | 2.51 |
| 17-01-2025 07:00 | 50.29273 | -3.61542 | 0.84 | 1.33 | 13.3 | 4.7 | 194 | 30 | 10.6 | 8.3 | 2.89 |
| 17-01-2025 06:30 | 50.29274 | -3.61540 | 0.89 | 1.25 | 13.3 | 4.4 | 190 | 29 | 10.7 | 8.1 | 3.16 |
| 17-01-2025 06:00 | 50.29275 | -3.61551 | 0.86 | 1.2 | 14.3 | 3.8 | 186 | 29 | 10.7 | 6.8 | 2.45 |
| 17-01-2025 05:30 | 50.29277 | -3.61581 | 0.84 | 1.34 | 13.3 | 3.8 | 187 | 19 | 10.7 | 6.9 | 2.39 |
| 17-01-2025 05:00 | 50.29256 | -3.61645 | 0.74 | 1.18 | 13.3 | 3.6 | 190 | 30 | 10.7 | 6.4 | 1.73 |
| 17-01-2025 04:30 | 50.29218 | -3.61652 | 0.76 | 1.07 | 14.3 | 3.6 | 204 | 35 | 10.6 | 6.1 | 1.73 |
| 17-01-2025 04:00 | 50.29207 | -3.61648 | 0.73 | 0.99 | 14.3 | 3.5 | 215 | 50 | 10.6 | 5.7 | 1.5 |
| 17-01-2025 03:30 | 50.29202 | -3.61645 | 0.68 | 0.96 | 3.9 | 3.5 | 158 | 24 | 10.6 | 5.5 | 1.26 |
| 17-01-2025 03:00 | 50.29200 | -3.61645 | 0.65 | 0.94 | 12.5 | 3.4 | 204 | 50 | 10.6 | 5.6 | 1.16 |
| 17-01-2025 02:30 | 50.29201 | -3.61645 | 0.6 | 0.9 | 14.3 | 3.4 | 212 | 53 | 10.6 | 6.1 | 1.07 |
| 17-01-2025 02:00 | 50.29200 | -3.61643 | 0.6 | 0.78 | 11.8 | 3.6 | 191 | 32 | 10.5 | 6.6 | 1.17 |
| 17-01-2025 01:30 | 50.29190 | -3.61633 | 0.56 | 0.78 | 15.4 | 3.8 | 172 | 43 | 10.6 | 7.6 | 1.16 |
| 17-01-2025 01:00 | 50.29185 | -3.61620 | 0.53 | 0.77 | 12.5 | 4.2 | 215 | 37 | 10.6 | 8.5 | 1.17 |
| 17-01-2025 00:30 | 50.29187 | -3.61624 | 0.55 | 0.81 | 15.4 | 4.6 | 165 | 53 | 10.6 | 9.3 | 1.38 |
| 17-01-2025 00:00 | 50.29186 | -3.61622 | 0.56 | 0.88 | 14.3 | 4.8 | 166 | 56 | 10.6 | 9.3 | 1.43 |
