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 16 days 7 hours 46 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 27-11-2025 11:30 | 50.34290 | -3.44288 | 1.15 | 1.84 | 4.4 | 4 | 208 | 18 | 12.9 | 4.8 | 3.09 |
| 27-11-2025 11:00 | 50.33441 | -3.45524 | 1.16 | 1.86 | 5.9 | 4 | 208 | 19 | 12.9 | 4.7 | 3.11 |
| 27-11-2025 10:30 | 50.32594 | -3.46777 | 1.16 | 2.08 | 4.6 | 3.9 | 211 | 14 | 12.9 | 4.6 | 3.05 |
| 27-11-2025 10:00 | 50.31805 | -3.47979 | 1.11 | 1.83 | 4.8 | 3.9 | 212 | 20 | 12.9 | 4.6 | 2.77 |
| 27-11-2025 09:30 | 50.31097 | -3.49063 | 1.08 | 1.94 | 5.9 | 3.8 | 211 | 18 | 12.8 | 4.6 | 2.64 |
| 27-11-2025 09:00 | 50.30494 | -3.50000 | 1.11 | 1.79 | 5.6 | 3.8 | 211 | 23 | 12.8 | 4.6 | 2.81 |
| 27-11-2025 08:30 | 50.30000 | -3.50715 | 1.08 | 1.61 | 5.9 | 3.8 | 211 | 16 | 12.8 | 4.6 | 2.65 |
| 27-11-2025 08:00 | 50.29631 | -3.51251 | 1.08 | 1.54 | 6.3 | 3.9 | 211 | 18 | 12.8 | 4.7 | 2.67 |
| 27-11-2025 07:30 | 50.29435 | -3.51584 | 1.11 | 1.62 | 5.9 | 3.9 | 217 | 17 | 12.8 | 4.7 | 2.81 |
| 27-11-2025 07:00 | 50.29424 | -3.51730 | 1.13 | 1.77 | 5.9 | 3.9 | 211 | 19 | 12.8 | 4.7 | 2.92 |
| 27-11-2025 06:30 | 50.29575 | -3.51691 | 1.05 | 1.49 | 5.6 | 3.8 | 208 | 17 | 12.8 | 4.6 | 2.48 |
| 27-11-2025 06:00 | 50.29873 | -3.51479 | 1.07 | 1.88 | 5.9 | 3.8 | 210 | 20 | 12.8 | 4.6 | 2.59 |
| 27-11-2025 05:30 | 50.30259 | -3.51200 | 1.07 | 1.56 | 5.3 | 3.8 | 201 | 17 | 12.7 | 4.6 | 2.58 |
| 27-11-2025 05:00 | 50.30686 | -3.50955 | 1 | 1.7 | 5 | 3.8 | 200 | 18 | 12.7 | 4.6 | 2.26 |
| 27-11-2025 04:30 | 50.31075 | -3.50745 | 0.95 | 1.48 | 5.6 | 3.7 | 203 | 22 | 12.7 | 4.6 | 2.03 |
| 27-11-2025 04:00 | 50.31421 | -3.50702 | 0.9 | 1.25 | 5.6 | 3.6 | 198 | 22 | 12.7 | 4.5 | 1.78 |
| 27-11-2025 03:30 | 50.31689 | -3.50790 | 0.83 | 1.14 | 6.3 | 3.7 | 201 | 22 | 12.7 | 4.6 | 1.56 |
| 27-11-2025 03:00 | 50.31908 | -3.50955 | 0.8 | 1.09 | 5.3 | 3.7 | 197 | 28 | 12.7 | 4.7 | 1.47 |
| 27-11-2025 02:30 | 50.32054 | -3.51215 | 0.8 | 1.16 | 5.9 | 3.6 | 197 | 24 | 12.7 | 4.6 | 1.45 |
| 27-11-2025 02:00 | 50.32126 | -3.51597 | 0.71 | 1.14 | 6.3 | 3.7 | 203 | 23 | 12.7 | 4.7 | 1.16 |
| 27-11-2025 01:30 | 50.32109 | -3.52185 | 0.7 | 0.96 | 5.6 | 3.5 | 190 | 34 | 12.7 | 4.5 | 1.08 |
| 27-11-2025 01:00 | 50.32040 | -3.52992 | 0.7 | 1.12 | 5.3 | 3.4 | 191 | 34 | 12.7 | 4.3 | 1.03 |
| 27-11-2025 00:30 | 50.31915 | -3.54004 | 0.65 | 0.97 | 5.3 | 3.2 | 183 | 46 | 12.7 | 4.1 | 0.85 |
| 27-11-2025 00:00 | 50.31732 | -3.55043 | 0.62 | 1.09 | 5.6 | 3.4 | 180 | 32 | 12.7 | 4.4 | 0.83 |
| 26-11-2025 23:30 | 50.31486 | -3.56056 | 0.62 | 0.89 | 5.9 | 3.4 | 188 | 38 | 12.7 | 4.4 | 0.83 |
| 26-11-2025 23:00 | 50.31174 | -3.57066 | 0.62 | 0.78 | 6.3 | 3.3 | 191 | 35 | 12.6 | 4.3 | 0.81 |
| 26-11-2025 22:30 | 50.30813 | -3.58047 | 0.64 | 1.08 | 5.9 | 3.4 | 191 | 38 | 12.6 | 4.4 | 0.88 |
| 26-11-2025 22:00 | 50.30404 | -3.58916 | 0.64 | 0.95 | 5.6 | 3.4 | 170 | 33 | 12.6 | 4.4 | 0.89 |
| 26-11-2025 21:30 | 50.29967 | -3.59708 | 0.62 | 1.03 | 5.3 | 3.3 | 181 | 32 | 12.6 | 4.3 | 0.81 |
| 26-11-2025 21:00 | 50.29502 | -3.60429 | 0.59 | 0.88 | 5 | 3.3 | 174 | 33 | 12.6 | 4.3 | 0.73 |
| 26-11-2025 20:30 | 50.29037 | -3.61083 | 0.56 | 0.81 | 4.8 | 3.3 | 173 | 34 | 12.7 | 4.5 | 0.7 |
| 26-11-2025 20:00 | 50.28627 | -3.61605 | 0.53 | 0.82 | 5.6 | 3.3 | 158 | 35 | 12.7 | 4.5 | 0.63 |
| 26-11-2025 19:30 | 50.28325 | -3.61982 | 0.52 | 0.7 | 5.3 | 3.2 | 165 | 33 | 12.6 | 4.2 | 0.56 |
| 26-11-2025 19:00 | 50.28141 | -3.62244 | 0.53 | 0.76 | 5.6 | 3.2 | 160 | 34 | 12.6 | 4.1 | 0.57 |
| 26-11-2025 18:30 | 50.28092 | -3.62371 | 0.51 | 0.65 | 5.9 | 3.2 | 156 | 32 | 12.6 | 4.3 | 0.55 |
| 26-11-2025 18:00 | 50.28202 | -3.62371 | 0.51 | 0.74 | 4.8 | 3.3 | 162 | 28 | 12.6 | 4.3 | 0.55 |
| 26-11-2025 17:30 | 50.28425 | -3.62266 | 0.51 | 0.74 | 5 | 3.2 | 167 | 32 | 12.6 | 4.3 | 0.55 |
| 26-11-2025 17:00 | 50.28712 | -3.62072 | 0.54 | 0.7 | 5 | 3.3 | 173 | 26 | 12.5 | 4.4 | 0.63 |
| 26-11-2025 16:30 | 50.29026 | -3.61851 | 0.55 | 0.71 | 3.3 | 3.2 | 167 | 22 | 12.5 | 4.3 | 0.64 |
| 26-11-2025 16:00 | 50.29166 | -3.61759 | 0.56 | 0.82 | 5 | 3.5 | 165 | 27 | 12.5 | 4.6 | 0.71 |
| 26-11-2025 15:30 | 50.29163 | -3.61748 | 0.53 | 0.77 | 11.1 | 3.4 | 177 | 29 | 12.5 | 4.8 | 0.66 |
| 26-11-2025 15:00 | 50.29162 | -3.61733 | 0.5 | 0.67 | 10.5 | 3.4 | 177 | 35 | 12.5 | 4.8 | 0.59 |
| 26-11-2025 14:30 | 50.29166 | -3.61714 | 0.53 | 0.7 | 10 | 3.5 | 167 | 34 | 12.4 | 5.2 | 0.71 |
| 26-11-2025 14:00 | 50.29171 | -3.61686 | 0.52 | 0.75 | 10 | 3.4 | 174 | 30 | 12.4 | 5.2 | 0.69 |
| 26-11-2025 13:30 | 50.29186 | -3.61663 | 0.48 | 0.66 | 10.5 | 3.3 | 180 | 34 | 12.4 | 5 | 0.56 |
| 26-11-2025 13:00 | 50.29203 | -3.61652 | 0.51 | 0.88 | 10.5 | 3.5 | 179 | 27 | 12.3 | 5.5 | 0.7 |
| 26-11-2025 12:30 | 50.29211 | -3.61652 | 0.5 | 0.7 | 10.5 | 3.6 | 184 | 30 | 12.2 | 5.9 | 0.72 |
| 26-11-2025 12:00 | 50.29214 | -3.61654 | 0.48 | 0.71 | 10 | 3.6 | 190 | 23 | 12 | 6 | 0.68 |
| 26-11-2025 11:30 | 50.29216 | -3.61654 | 0.51 | 0.67 | 10.5 | 4.4 | 181 | 16 | 12.1 | 7.2 | 0.92 |
| 26-11-2025 11:00 | 50.29213 | -3.61656 | 0.47 | 0.86 | 10.5 | 5.4 | 184 | 20 | 12.1 | 7.4 | 0.81 |
