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M4 wave buoy daily averages for Jun 2023 last observation shown Data available:  to  Monthly averages for

Average Wave Height

5 ft
2 — 13.1 ft

Average Wave period

5 secs
3 — 8 secs

Average Water temperature

15 °C
13 — 18.3 °C

Average Wind

SE, 14 mph
2 — 33 mph
About M4 wave buoy

M4 is an offshore data buoy in the Atlantic approaches (55.0000°N, 10.0000°W). It supports marine forecasting by providing real‑time sea‑state and weather observations in open water. It typically reports directional waves and meteorology.

M4 wave buoy daily averages Jun 2023 last observation shown Jun 2023
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
10 6 W 21 15.2
10 7 WSW 19 15.4
9 7 W 17 15.5
9 6 SW 21 15.7
9 6 SW 21 15.9
9 6 SW 22 15.9
8 6 S 23 15.7
8 6 S 19 16.0
4 5 SSE 13 16.8
4 5 W 14 16.9
3 4 SSW 12 17.1
3 5 SW 9 17.3
3 5 ESE 14 17.1
4 5 ESE 10 16.9
4 6 E 11 16.9
3 6 ENE 4 16.7
3 5 E 7 16.0
2 5 NNE 7 15.4
3 6 S 6 15.5
3 6 SE 4 14.9
3 4 ESE 12 14.7
4 4 E 15 14.6
4 4 E 18 14.8
4 4 ENE 16 14.7
3 4 ENE 15 14.6
3 4 ENE 13 13.9
4 4 ENE 18 13.7
4 4 NE 17 13.5
4 4 NE 16 13.4
5 5 NE 19 13.2

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