St Mary's Sound wave
buoy monthly averages for 2024 last observation shown
oldest observation available
Average Wave Height
4 ft
2.3 — 5.8 ft
Average Wave period
5 secs
4.5 — 5.5 secs
Average Wave Direction
SW
Average Water temperature
13 °C
10.7 — 16 °C
| Month | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 5.0 | 5.1 | SSW | 12.4 | |
| 4.7 | 5 | S | 13.4 | |
| 4.5 | 5.3 | SW | 14.0 | |
| 3.0 | 4.6 | SW | 15.1 | |
| 3.2 | 4.8 | WSW | 16.0 | |
| 2.4 | 4.5 | WSW | 14.7 | |
| 2.3 | 4.5 | WNW | 13.8 | |
| 2.9 | 4.6 | SW | 12.7 | |
| 4.8 | 5.1 | SW | 11.3 | |
| 5.5 | 5.4 | SW | 10.7 | |
| 5.2 | 5.4 | SW | 10.7 | |
| 5.8 | 5.5 | SSW | 10.8 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.