St Mary's Sound wave buoy daily averages for May 2018 last observation shown oldest observation available Monthly averages for
Average Wave Height
3 ft
1.1 — 10.9 ft
Average Wave period
9 secs
4 — 18 secs
Average Wave Direction
NNW
Average Water temperature
11 °C
10.4 — 14.3 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 1.9 | 11.2 | NW | 12.4 | |
| 1.9 | 8.1 | SSE | 12.3 | |
| 1.4 | 9.9 | NW | 12.5 | |
| 1.8 | 6.1 | SW | 12.1 | |
| 2.4 | 4.2 | SE | 12.6 | |
| 1.8 | 7.5 | NNE | 12.7 | |
| 1.6 | 10.6 | NNW | 11.9 | |
| 1.5 | 11.9 | NNW | 11.9 | |
| 1.5 | 8.9 | ENE | 11.8 | |
| 2.1 | 8.4 | NNE | 11.5 | |
| 1.9 | 7.2 | E | 11.4 | |
| 1.8 | 10.3 | NE | 11.3 | |
| 1.4 | 10.7 | NNE | 11.3 | |
| 2.0 | 5.1 | ESE | 11.1 | |
| 3.3 | 5.8 | ESE | 11.0 | |
| 2.8 | 7.5 | NE | 11.0 | |
| 1.9 | 9.7 | NW | 11.0 | |
| 2.4 | 10 | W | 11.0 | |
| 3.1 | 11.5 | NW | 11.0 | |
| 4.7 | 9.4 | SW | 11.0 | |
| 6.9 | 8.1 | SSW | 11.0 | |
| 3.8 | 15.4 | N | 11.0 | |
| 3.2 | 12.6 | NNW | 11.0 | |
| 1.8 | 9.5 | WNW | 10.9 | |
| 1.6 | 11.4 | NNW | 11.0 | |
| 1.6 | 9.6 | NNW | 10.9 | |
| 1.8 | 10.3 | NW | 10.8 | |
| 2.3 | 10.8 | NNW | 10.7 | |
| 2.9 | 10 | WNW | 10.6 | |
| 5.2 | 8.8 | SW | 10.5 | |
| 4.9 | 6.7 | SSW | 10.5 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.