St Mary's Sound wave buoy daily averages for Jun 2019 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0.9 — 11.6 ft
Average Wave period
8 secs
3 — 14 secs
Average Wave Direction
SSW
Average Water temperature
13 °C
12.6 — 15.9 °C
About St Mary's Sound wave buoy
St Mary's Sound (CCO station 113) is an inshore coastal wave monitoring site at 49.8912°N, 6.3125°W. It’s part of the UK’s regional Coastal Monitoring / Channel Coastal Observatory network, placed to characterise nearshore wave climate for flood risk, erosion studies, coastal engineering and local forecasting. These stations commonly use a directional wave buoy (often a Datawell Directional WaveRider class) and report significant wave height, wave period (peak/mean) and wave direction; many also report sea temperature and, where fitted, nearby meteorology.
| Day | Wave height (ft) | Wave Period (s) | Wave Direction | Water Temp (°C) |
|---|---|---|---|---|
| 2 | 7 | SW | 14.4 | |
| 2 | 9 | SSE | 14.6 | |
| 6 | 8 | E | 14.8 | |
| 10 | 8 | ESE | 15.1 | |
| 2 | 7 | SSE | 15.0 | |
| 2 | 8 | SW | 13.8 | |
| 3 | 9 | SW | 13.6 | |
| 5 | 8 | S | 13.5 | |
| 3 | 6 | SE | 13.5 | |
| 2 | 8 | SW | 13.5 | |
| 3 | 10 | SW | 13.1 | |
| 2 | 9 | SSW | 13.1 | |
| 2 | 8 | WSW | 13.0 | |
| 3 | 7 | SW | 13.0 | |
| 4 | 7 | SSW | 13.0 | |
| 4 | 7 | SW | 13.0 | |
| 2 | 6 | SW | 13.0 | |
| 2 | 9 | ENE | 12.9 | |
| 2 | 7 | ENE | 13.1 | |
| 3 | 7 | ENE | 13.1 | |
| 1 | 8 | SSW | 13.0 | |
| 2 | 7 | SSW | 13.1 | |
| 3 | 7 | SW | 12.8 | |
| 3 | 6 | E | 12.8 | |
| 2 | 8 | W | 13.1 | |
| 3 | 8 | WSW | 12.9 | |
| 3 | 6 | SSW | 12.9 | |
| 3 | 10 | WNW | 13.1 | |
| 4 | 8 | WSW | 12.7 | |
| 3 | 11 | WNW | 12.8 |
Realtime data displayed on this page is from the
Regional Coastal Monitoring Programme
.