St Mary's Sound wave
buoy monthly averages for 2017 last observation shown
oldest observation available
Average Wave Height
4 ft
2.3 — 6.1 ft
Average Wave period
8 secs
7.1 — 9.2 secs
Average Wave Direction
WSW
Average Water temperature
13 °C
10.3 — 15.2 °C
| Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 4.4 | 8.8 | SW | 11.6 | |
| 3.3 | 8.6 | WSW | 13.1 | |
| 4.0 | 8.8 | WSW | 14.1 | |
| 3.7 | 7.9 | WSW | 14.8 | |
| 2.6 | 7.1 | W | 15.2 | |
| 2.5 | 7.4 | W | 14.9 | |
| 3.0 | 8.4 | W | 13.9 | |
| 3.6 | 8.2 | SSW | 12.0 | |
| 2.3 | 8.4 | SW | 10.9 | |
| 5.1 | 8.9 | SW | 10.3 | |
| 6.1 | 9.2 | SW | 10.5 | |
| 4.7 | 8.3 | SSW | 11.0 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.