National Network of Regional Coastal Monitoring Programmes
« Dychwelid at fap am donau, llanw a gorsafoedd tywydd eraill.
Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.
Breaks in the data series are when the instrument is dry.
Penarth
Tide Levels and HarmonicsData llanw diweddaraf (Predicted Tide Table)
| Amser (ASG) | Codiad | Gweddill |
|---|---|---|
| 10-12-2025 16:30 | 2.78 | -0.34 |
| Penllanw nesaf | Distyll nesaf |
|---|---|
| 23:09, 10.35 | 16:59, 3.03 |
| Dyddiad | Uchaf 2025 | Dyddiad | Isaf 2025 |
|---|---|---|---|
| 08-11 | 56.61m | 28-04 | 2.59m |
Penarth Predicted Tide Table (Chart Datum)
| 10-12-2025 | 11-12-2025 | 12-12-2025 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 10:37 23:09 | 10.92m 10.35m | High | 11:26 23:59 | 10.41m 9.88m | High | 12:20 | 10.03m |
| Low | 04:28 16:59 | 2.98m 3.03m | Low | 05:13 17:46 | 3.37m 3.41m | Low | 06:03 18:37 | 3.65m 3.67m |
| 13-12-2025 | 14-12-2025 | 15-12-2025 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 00:55 13:19 | 9.58m 9.82m | High | 01:58 14:22 | 9.49m 9.80m | High | 03:02 15:24 | 9.67m 9.98m |
| Low | 07:00 19:34 | 3.81m 3.79m | Low | 08:04 20:38 | 3.83m 3.73m | Low | 09:10 21:42 | 3.66m 3.48m |
