Skip to content

M4 wave buoy observations on Tue, Dec 9, 2025 last observation shown oldest observation available Daily averages for

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 hourly observations Tue, Dec 9, 2025 last observation shown Tue, Dec 9, 2025
Hour Wave height (ft) Wave Period (s) Wind Direction Wind Speed (mph) Water Temp (°C)
22 9 SW 36 11.4
22 9 SW 38 11.5
22 9 WSW 38 11.4
23 9 WSW 45 11.4
18 8 WSW 45 11.5
18 8 W 49 11.5
16 8 W 47 11.5
14 8 W 43 11.5
15 8 S 31 11.5
13 8 SSE 29 11.5
13 8 SE 29 11.5
13 8 ESE 29 11.5
11 8 SE 29 11.5
12 8 SE 29 11.4
13 8 SE 26 11.4
12 8 SE 29 11.4
13 7 ESE 31 11.4
13 8 E 29 11.4
15 9 E 26 11.4
15 9 E 26 11.4
15 9 E 24 11.4
16 9 ESE 24 11.5
18 10 SE 24 11.5
17 10 SE 22 11.5
Realtime data displayed on this page is from the Met Office Marine observations .

› Wave Buoy List