St Mary's Sound wave buoy daily averages for Oct 2025 last observation shown oldest observation available Monthly averages for
Average Wave Height
4 ft
1.1 — 14.5 ft
Average Wave period
5 secs
3 — 8 secs
Average Wave Direction
SW
Average Water temperature
14 °C
13.8 — 14.9 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 11 | 7 | SSW | 13.9 | |
| 8 | 5 | SSW | 13.9 | |
| 3 | 5 | NW | 13.9 | |
| 3 | 4 | WNW | 13.9 | |
| 3 | 4 | WNW | 13.9 | |
| 3 | 4 | NNW | 13.9 | |
| 3 | 5 | NNW | 14.0 | |
| 5 | 5 | WSW | 14.1 | |
| 6 | 6 | SSW | 14.2 | |
| 3 | 5 | SSW | 14.3 | |
| 4 | 5 | SW | 14.4 | |
| 7 | 6 | SW | 14.4 | |
| 8 | 6 | SSW | 14.4 | |
| 5 | 4 | SE | 14.4 | |
| 4 | 4 | ESE | 14.4 | |
| 4 | 4 | ESE | 14.5 | |
| 4 | 4 | ESE | 14.5 | |
| 4 | 4 | ESE | 14.5 | |
| 5 | 5 | ESE | 14.4 | |
| 4 | 4 | ESE | 14.4 | |
| 2 | 4 | SSE | 14.4 | |
| 2 | 5 | WNW | 14.4 | |
| 2 | 6 | W | 14.5 | |
| 3 | 6 | W | 14.5 | |
| 3 | 5 | WSW | 14.6 | |
| 3 | 5 | WSW | 14.6 | |
| 4 | 5 | W | 14.6 | |
| 6 | 6 | WSW | 14.7 | |
| 6 | 5 | SSW | 14.7 | |
| 4 | 4 | WSW | 14.7 | |
| 2 | 5 | NW | 14.7 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.