St Mary's Sound wave buoy daily averages for Oct 2025 last observation shown oldest observation available Monthly averages for

Average Wave Height

4 ft
1.1 — 11.6 ft

Average Wave period

5 secs
3 — 8 secs

Average Wave Direction

WSW

Average Water temperature

14 °C
13.8 — 14.9 °C
St Mary's Sound wave buoy daily averages Oct 2025 last observation shown Oct 2025
Day Wave height (ft) Wave Period (s) Wave Direction Water Temp (°C)
3.1 4.2 NW 13.9
2.5 4.5 NW 13.9
3.0 4.1 WNW 13.9
3.3 4.3 WNW 13.9
2.9 4.2 NNW 13.9
3.1 4.6 NNW 14.0
4.8 5.1 WSW 14.1
6.3 6.3 SSW 14.2
3.2 5.1 SSW 14.3
3.7 5.3 SW 14.4
6.7 5.9 SW 14.4
7.5 5.6 SSW 14.4
5.3 4.3 SE 14.4
3.7 4 ESE 14.4
4.0 4 ESE 14.5
3.8 4 ESE 14.5
3.7 4.1 ESE 14.5
4.9 4.5 ESE 14.4
3.5 3.9 ESE 14.4
1.6 3.6 SSE 14.4
1.5 5.3 WNW 14.4
1.8 5.5 W 14.5
2.5 5.8 W 14.5
2.6 5 WSW 14.6
2.5 5.2 WSW 14.6
3.9 5.4 W 14.6
6.4 5.5 WSW 14.7
6.3 5.2 SSW 14.7
3.9 4.3 WSW 14.7
2.2 4.6 NW 14.7
Realtime data displayed on this page is from the Regional Coastal Monitoring Programme.

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