St Mary's Sound wave buoy daily averages for Sep 2023 last observation shown oldest observation available Monthly averages for
Average Wave Height
4 ft
1.1 — 13.4 ft
Average Wave period
5 secs
3 — 8 secs
Average Wave Direction
SW
Average Water temperature
16 °C
14.9 — 19 °C
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 5 | 5 | SSW | 15.2 | |
| 5 | 6 | SW | 15.2 | |
| 6 | 6 | SW | 15.2 | |
| 7 | 6 | SW | 15.5 | |
| 5 | 5 | WSW | 15.8 | |
| 6 | 6 | SW | 15.6 | |
| 8 | 6 | SSW | 15.4 | |
| 4 | 5 | SW | 15.8 | |
| 4 | 6 | W | 15.7 | |
| 5 | 6 | SSW | 15.7 | |
| 8 | 6 | SSW | 15.6 | |
| 5 | 5 | SW | 15.7 | |
| 3 | 5 | WSW | 15.4 | |
| 3 | 4 | SE | 16.3 | |
| 3 | 4 | E | 16.5 | |
| 2 | 4 | WSW | 15.8 | |
| 2 | 4 | WNW | 15.7 | |
| 1 | 5 | ESE | 16.2 | |
| 2 | 4 | WNW | 16.2 | |
| 2 | 5 | W | 16.6 | |
| 2 | 5 | WSW | 17.2 | |
| 2 | 6 | SW | 18.0 | |
| 4 | 7 | SW | 17.7 | |
| 3 | 5 | SW | 16.7 | |
| 3 | 6 | SW | 16.3 | |
| 4 | 4 | ESE | 15.7 | |
| 5 | 4 | E | 15.3 | |
| 2 | 4 | WNW | 15.1 | |
| 2 | 5 | WNW | 15.3 | |
| 3 | 5 | WSW | 15.6 |
Realtime data displayed on this page is from the Regional
Coastal Monitoring Programme.