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 16 hours 5 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21-07-2024 00:00 | 50.29188 | -3.61609 | 0.3 | 0.43 | 6.3 | 4.2 | 172 | 32 | 16.1 | 5.7 | 0.25 |
| 20-07-2024 23:30 | 50.29186 | -3.61603 | 0.32 | 0.49 | 5.6 | 4.4 | 177 | 29 | 16.1 | 5.6 | 0.28 |
| 20-07-2024 23:00 | 50.29185 | -3.61600 | 0.36 | 0.56 | 5.9 | 4.7 | 173 | 21 | 16.2 | 5.8 | 0.37 |
| 20-07-2024 22:30 | 50.29183 | -3.61594 | 0.38 | 0.62 | 6.3 | 4.8 | 179 | 20 | 16.2 | 6 | 0.43 |
| 20-07-2024 22:00 | 50.29181 | -3.61588 | 0.43 | 0.82 | 6.3 | 4.8 | 181 | 20 | 16.3 | 5.9 | 0.53 |
| 20-07-2024 21:30 | 50.29182 | -3.61579 | 0.44 | 0.66 | 6.7 | 4.8 | 177 | 22 | 16.4 | 5.8 | 0.56 |
| 20-07-2024 21:00 | 50.29182 | -3.61573 | 0.47 | 0.74 | 6.3 | 4.8 | 174 | 15 | 16.4 | 6 | 0.65 |
| 20-07-2024 20:30 | 50.29182 | -3.61564 | 0.53 | 0.84 | 5.6 | 4.8 | 174 | 14 | 16.4 | 5.7 | 0.78 |
| 20-07-2024 20:00 | 50.29185 | -3.61547 | 0.54 | 0.91 | 5.6 | 4.5 | 174 | 22 | 16.4 | 5.3 | 0.76 |
| 20-07-2024 19:30 | 50.29208 | -3.61504 | 0.59 | 0.93 | 5.6 | 4.4 | 176 | 18 | 16.5 | 5.2 | 0.89 |
| 20-07-2024 19:00 | 50.29237 | -3.61504 | 0.51 | 0.79 | 5.9 | 4.2 | 170 | 22 | 16.5 | 5.2 | 0.66 |
| 20-07-2024 18:30 | 50.29248 | -3.61508 | 0.55 | 0.84 | 5.6 | 4.1 | 177 | 23 | 16.5 | 5 | 0.75 |
| 20-07-2024 18:00 | 50.29253 | -3.61510 | 0.52 | 0.7 | 5 | 4 | 172 | 30 | 16.5 | 5 | 0.66 |
| 20-07-2024 17:30 | 50.29253 | -3.61510 | 0.5 | 0.73 | 4 | 3.8 | 158 | 37 | 16.5 | 4.8 | 0.59 |
| 20-07-2024 17:00 | 50.29250 | -3.61508 | 0.49 | 0.85 | 4 | 3.7 | 155 | 37 | 16.5 | 4.5 | 0.53 |
| 20-07-2024 16:30 | 50.29255 | -3.61512 | 0.46 | 0.78 | 4 | 3.5 | 138 | 42 | 16.5 | 4.3 | 0.45 |
| 20-07-2024 16:00 | 50.29257 | -3.61512 | 0.47 | 0.74 | 4.2 | 3.3 | 153 | 46 | 16.5 | 4 | 0.43 |
| 20-07-2024 15:30 | 50.29259 | -3.61519 | 0.53 | 0.88 | 3.9 | 3.2 | 156 | 37 | 16.4 | 3.8 | 0.52 |
| 20-07-2024 15:00 | 50.29262 | -3.61523 | 0.59 | 1.05 | 4 | 3.2 | 159 | 26 | 16.3 | 3.8 | 0.65 |
| 20-07-2024 14:30 | 50.29263 | -3.61534 | 0.61 | 0.93 | 4.4 | 3.2 | 165 | 27 | 16.3 | 3.8 | 0.7 |
| 20-07-2024 14:00 | 50.29242 | -3.61607 | 0.61 | 1.05 | 4.4 | 3.2 | 160 | 30 | 16.2 | 3.8 | 0.69 |
| 20-07-2024 13:30 | 50.29208 | -3.61615 | 0.64 | 1.07 | 4.4 | 3.3 | 163 | 25 | 16.3 | 3.8 | 0.77 |
| 20-07-2024 13:00 | 50.29201 | -3.61615 | 0.74 | 1.25 | 4.6 | 3.4 | 172 | 18 | 16.3 | 4 | 1.08 |
| 20-07-2024 12:30 | 50.29194 | -3.61611 | 0.72 | 1.06 | 4.4 | 3.4 | 172 | 22 | 16.1 | 3.9 | 0.99 |
| 20-07-2024 12:00 | 50.29193 | -3.61609 | 0.66 | 1.13 | 4.4 | 3.3 | 172 | 19 | 16.3 | 3.9 | 0.83 |
| 20-07-2024 11:30 | 50.29194 | -3.61609 | 0.63 | 0.84 | 4.2 | 3.2 | 165 | 22 | 16.3 | 3.8 | 0.74 |
| 20-07-2024 11:00 | 50.29191 | -3.61609 | 0.62 | 0.84 | 4.8 | 3.2 | 176 | 17 | 16.3 | 3.8 | 0.72 |
| 20-07-2024 10:30 | 50.29188 | -3.61600 | 0.63 | 1.12 | 4.6 | 3.4 | 174 | 18 | 16.3 | 4 | 0.79 |
| 20-07-2024 10:00 | 50.29186 | -3.61594 | 0.6 | 0.96 | 4.4 | 3.3 | 173 | 20 | 16.3 | 3.9 | 0.69 |
| 20-07-2024 09:30 | 50.29186 | -3.61588 | 0.59 | 0.88 | 4.8 | 3.3 | 177 | 18 | 16.3 | 3.9 | 0.67 |
| 20-07-2024 09:00 | 50.29185 | -3.61583 | 0.54 | 0.83 | 4.6 | 3.2 | 176 | 19 | 16.3 | 3.9 | 0.56 |
| 20-07-2024 08:30 | 50.29190 | -3.61573 | 0.53 | 0.75 | 4.2 | 3.2 | 167 | 19 | 16.3 | 4 | 0.56 |
| 20-07-2024 08:00 | 50.29212 | -3.61515 | 0.47 | 0.75 | 4.2 | 3.4 | 173 | 21 | 16.3 | 4.3 | 0.47 |
| 20-07-2024 07:30 | 50.29248 | -3.61512 | 0.44 | 0.7 | 4.6 | 3.2 | 177 | 17 | 16.3 | 4.2 | 0.4 |
| 20-07-2024 07:00 | 50.29252 | -3.61512 | 0.43 | 0.73 | 4.2 | 3.2 | 174 | 21 | 16.3 | 4.1 | 0.38 |
| 20-07-2024 06:30 | 50.29256 | -3.61517 | 0.38 | 0.56 | 4.2 | 3.4 | 184 | 23 | 16.3 | 4.3 | 0.31 |
| 20-07-2024 06:00 | 50.29258 | -3.61521 | 0.35 | 0.62 | 4.2 | 3.4 | 176 | 31 | 16.3 | 4.3 | 0.26 |
| 20-07-2024 05:30 | 50.29258 | -3.61519 | 0.33 | 0.48 | 3.7 | 3.3 | 172 | 28 | 16.3 | 4.3 | 0.23 |
| 20-07-2024 05:00 | 50.29259 | -3.61523 | 0.28 | 0.52 | 3.9 | 3.3 | 173 | 30 | 16.2 | 4.3 | 0.17 |
| 20-07-2024 04:30 | 50.29257 | -3.61519 | 0.27 | 0.36 | 4.4 | 2.9 | 167 | 42 | 16.2 | 4.2 | 0.15 |
| 20-07-2024 04:00 | 50.29258 | -3.61519 | 0.25 | 0.38 | 4.8 | 2.8 | 153 | 41 | 16.2 | 4 | 0.12 |
| 20-07-2024 03:30 | 50.29260 | -3.61519 | 0.23 | 0.37 | 4.4 | 2.9 | 166 | 47 | 16.3 | 4.2 | 0.11 |
| 20-07-2024 03:00 | 50.29259 | -3.61519 | 0.21 | 0.29 | 5.9 | 2.8 | 128 | 56 | 16.2 | 4.2 | 0.09 |
| 20-07-2024 02:30 | 50.29265 | -3.61560 | 0.22 | 0.33 | 2.3 | 2.6 | 169 | 27 | 16.3 | 3.8 | 0.09 |
| 20-07-2024 02:00 | 50.29251 | -3.61603 | 0.22 | 0.28 | 2.3 | 2.6 | 173 | 20 | 16.4 | 3.7 | 0.09 |
| 20-07-2024 01:30 | 50.29209 | -3.61615 | 0.23 | 0.3 | 2 | 2.7 | 194 | 24 | 16.4 | 4 | 0.1 |
| 20-07-2024 01:00 | 50.29198 | -3.61609 | 0.22 | 0.33 | 4.4 | 2.9 | 176 | 33 | 16.2 | 4.1 | 0.1 |
| 20-07-2024 00:30 | 50.29190 | -3.61607 | 0.23 | 0.38 | 4.6 | 3 | 169 | 34 | 16.3 | 4.3 | 0.11 |
| 20-07-2024 00:00 | 50.29192 | -3.61611 | 0.22 | 0.32 | 3.9 | 3.1 | 176 | 29 | 16.5 | 4.2 | 0.1 |
