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 |
|---|---|---|
| 17-08-2026 10:30 | 11.5 | 0.18 |
| Penllanw nesaf | Distyll nesaf |
|---|---|
| 21:57, 11.76 | 15:51, 1.88 |
| Dyddiad | Uchaf 2026 | Dyddiad | Isaf 2026 |
|---|---|---|---|
| 04-02 | 13.05m | 18-01 | 2.59m |
Penarth Predicted Tide Table (Chart Datum)
| 17-08-2026 | 18-08-2026 | 19-08-2026 | ||||||
|---|---|---|---|---|---|---|---|---|
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 09:45 21:57 | 11.80m 11.76m | High | 10:14 22:28 | 11.22m 11.12m | High | 10:44 23:00 | 10.60m 10.40m |
| Low | 03:41 15:51 | 1.71m 1.88m | Low | 04:06 16:17 | 2.17m 2.36m | Low | 04:32 16:47 | 2.64m 2.90m |
| 20-08-2026 | 21-08-2026 | 22-08-2026 | ||||||
| Time (GMT) | Height | Time (GMT) | Height | Time (GMT) | Height | |||
| High | 11:20 23:41 | 9.95m 9.63m | High | 12:09 | 9.28m | High | 00:40 13:25 | 8.91m 8.77m |
| Low | 05:03 17:25 | 3.18m 3.52m | Low | 05:43 18:19 | 3.81m 4.17m | Low | 06:44 19:41 | 4.43m 4.60m |
