Rhyl Flats wave buoy monthly averages for 2015 last observation shown oldest observation available
Average Wave Height
 2 ft 
 0.1 — 11.8 ft
   Average Wave period
 4 secs 
 2 — 22 secs
   Average Wave Direction
 NW 
  Average Water temperature
 11 °C 
 0 — 18.8 °C
   | Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) | 
|---|---|---|---|---|
| 3.1 | 5.1 | W | 10.3 | |
| 3.7 | 5.1 | WNW | 11.9 | |
| 1.6 | 4.2 | N | 14.0 | |
| 1.9 | 3.9 | N | 15.8 | |
| 1.4 | 3.7 | WNW | 16.5 | |
| 2.0 | 4 | WNW | 15.9 | |
| 1.7 | 3.9 | NW | 13.8 | |
| 2.2 | 4.1 | NW | 10.7 | |
| 1.8 | 4.4 | NNW | 8.4 | |
| 2.4 | 4.5 | NW | 6.3 | |
| 2.5 | 4.6 | NW | 5.3 | |
| 4.1 | 5.3 | WNW | 7.5 | 
 Realtime data displayed on this page is from the Regional
                Coastal Monitoring Programme.