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St Mary's Sound wave buoy daily averages for May 2018 last observation shown Data available:  to  Monthly averages for

Average Wave Height

3 ft
1.1 — 10.9 ft

Average Wave period

9 secs
4 — 18 secs

Average Wave Direction

NNW

Average Water temperature

11 °C
10.4 — 14.3 °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 2018 last observation shown May 2018
Day Wave height (ft) Wave Period (s) Wave Direction Water Temp (°C)
2 11 NW 12.4
2 8 SSE 12.3
1 10 NW 12.5
2 6 SW 12.1
2 4 SE 12.6
2 8 NNE 12.7
2 11 NNW 11.9
2 12 NNW 11.9
2 9 ENE 11.8
2 8 NNE 11.5
2 7 E 11.4
2 10 NE 11.3
1 11 NNE 11.3
2 5 ESE 11.1
3 6 ESE 11.0
3 8 NE 11.0
2 10 NW 11.0
2 10 W 11.0
3 12 NW 11.0
5 9 SW 11.0
7 8 SSW 11.0
4 15 N 11.0
3 13 NNW 11.0
2 10 WNW 10.9
2 11 NNW 11.0
2 10 NNW 10.9
2 10 NW 10.8
2 11 NNW 10.7
3 10 WNW 10.6
5 9 SW 10.5
5 7 SSW 10.5
Realtime data displayed on this page is from the Regional Coastal Monitoring Programme .

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