M4 wave buoy observations on Tue, Apr 14, 2026 last observation shown none oldest observation available
Line chart showing wave height and wave period for M4. Use the detailed observations table below for the same data in text form.
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.
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