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M4 wave buoy daily averages for Oct 2024 last observation shown oldest observation available Monthly averages for

Average Wave Height

11 ft
4.6 — 29.2 ft

Average Wave period

7 secs
5 — 11 secs

Average Water temperature

13 °C
12.5 — 14 °C

Average Wind

SSW, 20 mph
2 — 56 mph
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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 Oct 2024 last observation shown Oct 2024
Day Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
9 6 SW 21 13.1
7 7 SW 12 13.1
10 9 W 10 13.0
11 8 W 17 12.9
14 8 SW 22 13.0
10 7 W 19 13.1
12 7 NNE 23 13.1
14 8 N 23 13.0
13 7 S 26 13.0
13 8 WSW 20 12.8
16 8 WSW 25 12.8
21 9 SSW 36 13.0
20 10 SSW 21 13.3
13 7 SSW 27 13.4
10 8 SW 14 13.5
10 8 SSE 12 13.5
9 6 SE 23 13.4
8 6 S 19 13.4
11 7 SSE 20 13.3
12 7 NW 22 13.3
8 6 WSW 20 13.4
9 6 NNW 16 13.6
14 7 NNE 26 13.6
9 7 NE 16 13.6
11 8 ESE 14 13.7
8 7 SE 16 13.7
8 5 SE 23 13.6
8 6 S 21 13.7
7 5 SE 23 13.7
5 6 E 14 13.7
6 5 NNE 17 13.6
Realtime data displayed on this page is from the Met Office Marine observations .

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