Rhyl Flats wave
buoy daily averages for Apr 2025 last observation shown
oldest observation available
Monthly averages for 
Average Wave Height
28 ft
0 — 111.1 ft
Average Wave period
7 secs
2 — 18 secs
Average Wave Direction
NNE
Average Water temperature
13 °C
9.6 — 46.2 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 3.8 | 4.2 | NNW | 11.3 | |
| 4.9 | 3.9 | N | 11.2 | |
| 5.9 | 4.8 | NW | 12.4 | |
| 7.9 | 5.1 | W | 10.9 | |
| 23.4 | 9.1 | NNE | 11.4 | |
| 23.2 | 8.8 | E | 12.0 | |
| 21.3 | 8 | ENE | 12.4 | |
| 43.6 | 10.8 | NNE | 11.8 | |
| 28.0 | 6.6 | W | 12.6 | |
| 17.6 | 7.3 | NNE | 12.6 | |
| 38.1 | 8.5 | ESE | 9.8 | |
| 52.3 | 11.4 | NE | 9.8 | |
| 80.2 | 15.4 | NNE | 9.9 | |
| 26.4 | 6.6 | WNW | 9.8 | |
| 68.3 | 13.4 | NE | 15.9 | |
| 48.4 | 9.5 | N | 11.6 | |
| 75.7 | 12.2 | W | 23.1 | |
| 26.8 | 9 | WNW | 12.4 | |
| 0.7 | 2.2 | ENE | 9.8 | |
| 3.8 | 3.5 | N | 10.0 | |
| 22.2 | 7 | N | 12.5 | |
| 18.3 | 5.4 | NNW | 9.5 | |
| 14.2 | 4.1 | NNE | 12.2 | |
| 30.3 | 6.4 | E | 20.9 | |
| 17.6 | 5.2 | ENE | 12.0 | |
| 13.6 | 5.1 | NE | 14.1 | |
| 40.1 | 8.9 | NNE | 12.3 | |
| 28.0 | 6.8 | N | 13.4 | |
| 20.3 | 5.1 | E | 15.7 | |
| 25.5 | 7.8 | ENE | 23.9 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.