St Mary's Sound wave buoy daily averages for Mar 2025 last observation shown oldest observation available Monthly averages for
Average Wave Height
4 ft
1.2 — 9.8 ft
Average Wave period
5 secs
3 — 8 secs
Average Wave Direction
SSW
Average Water temperature
11 °C
10.7 — 12 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 3 | 5 | ESE | 11.2 | |
| 3 | 5 | W | 11.2 | |
| 3 | 5 | W | 11.2 | |
| 4 | 5 | WNW | 11.2 | |
| 2 | 5 | W | 11.2 | |
| 2 | 6 | WNW | 11.3 | |
| 2 | 5 | WSW | 11.1 | |
| 3 | 4 | NW | 11.0 | |
| 4 | 4 | NNW | 11.1 | |
| 6 | 6 | SSW | 11.0 | |
| 8 | 6 | SSW | 11.0 | |
| 6 | 5 | SSE | 10.9 | |
| 5 | 5 | SE | 10.8 | |
| 8 | 5 | ESE | 10.8 | |
| 6 | 5 | ESE | 10.8 | |
| 4 | 4 | ESE | 10.8 | |
| 3 | 5 | ESE | 10.0 | |
| 2 | 5 | SSW | 10.9 | |
| 2 | 4 | ESE | 10.9 | |
| 2 | 4 | E | 10.9 | |
| 4 | 5 | SSE | 11.0 | |
| 5 | 6 | SSW | 10.9 | |
| 6 | 5 | SSW | 10.9 | |
| 8 | 6 | S | 10.9 | |
| 4 | 5 | S | 10.8 | |
| 4 | 5 | SSE | 10.8 | |
| 2 | 5 | WNW | 10.8 | |
| 2 | 5 | W | 10.8 | |
| 3 | 5 | W | 10.8 | |
| 3 | 5 | S | 10.8 | |
| 2 | 5 | WSW | 10.8 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.