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St Mary's Sound wave buoy daily averages for Apr 2020 last observation shown Data available:  to  Monthly averages for

Average Wave Height

3 ft
0.8 — 13.4 ft

Average Wave period

9 secs
3 — 29 secs

Average Wave Direction

SSW

Average Water temperature

10 °C
9.8 — 11.5 °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 Apr 2020 last observation shown Apr 2020
Day Wave height (ft) Wave Period (s) Wave Direction Water Temp (°C)
1 9 WSW 11.0
1 11 WNW 11.0
2 12 WNW 11.0
2 12 WNW 10.9
2 12 NW 10.9
2 16 W 10.8
3 11 W 10.7
4 10 E 10.7
3 7 ESE 10.6
3 6 SE 10.5
3 8 S 10.5
3 7 ESE 10.4
4 7 ESE 10.4
6 7 ESE 10.3
6 8 ESE 10.2
7 9 E 10.2
2 11 WSW 10.3
2 9 SW 10.4
2 8 S 10.2
2 10 WSW 10.2
2 9 SW 10.2
4 10 SW 10.1
7 11 SSW 10.1
8 8 S 10.0
4 6 S 9.9
1 11 W 9.9
1 6 ESE 9.8
4 7 ESE 9.8
Realtime data displayed on this page is from the Regional Coastal Monitoring Programme .

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