St Mary's Sound wave buoy monthly averages for 2022 last observation shown oldest observation available
Average Wave Height
4 ft
0.8 — 19.6 ft
Average Wave period
5 secs
3 — 12 secs
Average Wave Direction
SW
Average Water temperature
13 °C
10.1 — 20.7 °C
| Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 6.0 | 5.4 | S | 11.8 | |
| 6.6 | 5.7 | SW | 13.4 | |
| 5.6 | 5.3 | SW | 14.5 | |
| 3.1 | 4.4 | WSW | 16.1 | |
| 2.2 | 4.2 | SSW | 16.5 | |
| 1.9 | 4.3 | W | 15.5 | |
| 3.0 | 4.8 | SW | 13.9 | |
| 2.6 | 4.9 | W | 12.3 | |
| 3.4 | 4.9 | SSW | 10.8 | |
| 5.1 | 5.1 | S | 10.3 | |
| 5.2 | 5.2 | WSW | 10.6 | |
| 3.7 | 5 | SW | 11.1 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.