Skip to content

St Mary's Sound wave buoy daily averages for May 2023 last observation shown Data available:  to  Monthly averages for

Average Wave Height

3 ft
0.6 — 9.8 ft

Average Wave period

5 secs
3 — 7 secs

Average Wave Direction

WNW

Average Water temperature

12 °C
11.1 — 14.8 °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.

St Mary's Sound wave buoy daily averages May 2023 last observation shown May 2023
Day Wave height (ft) Wave Period (s) Wave Direction Water Temp (°C)
4 4 ESE 13.7
5 5 ESE 13.9
4 4 ESE 14.4
2 3 E 13.8
3 5 ESE 13.5
3 4 ENE 13.6
2 4 N 13.2
2 4 NNW 12.8
2 4 NNE 12.9
2 4 N 12.7
2 5 WNW 12.5
2 5 NW 12.6
2 5 NNW 12.2
1 5 SW 12.3
1 4 W 12.4
2 5 NW 12.3
2 4 NNW 12.1
2 6 NNW 12.1
2 5 N 12.1
2 5 WNW 11.9
3 5 NW 11.7
4 5 W 11.7
3 5 WSW 11.6
4 5 SW 11.6
3 5 SW 11.6
4 6 SSW 11.5
4 5 SSW 11.4
5 5 SE 11.3
6 5 ESE 11.4
2 5 SW 11.4
2 5 WSW 11.3
Realtime data displayed on this page is from the Regional Coastal Monitoring Programme .

› Wave Buoy List