M4 wave buoy observations on Sun, Apr 30, 2023 last observation shown oldest observation available Daily averages for
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.
| Hour | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 5 | 6 | SSE | 12 | 11.1 | |
| 5 | 6 | SSE | 14 | 11.2 | |
| 5 | 6 | S | 14 | 11.1 | |
| 5 | 7 | S | 16 | 11.3 | |
| 5 | 6 | SSW | 14 | 11.1 | |
| 7 | 7 | SSW | 12 | 11.0 | |
| 6 | 7 | SSW | 12 | 10.6 | |
| 7 | 7 | S | 12 | 10.6 | |
| 7 | 7 | SSW | 12 | 10.8 | |
| 8 | 8 | SSW | 14 | 10.8 | |
| 7 | 7 | S | 12 | 10.9 | |
| 7 | 7 | SSW | 14 | 11.1 | |
| 7 | 7 | SSW | 16 | 11.2 | |
| 7 | 7 | SSW | 14 | 11.2 | |
| 8 | 7 | SW | 16 | 11.2 | |
| 8 | 7 | WSW | 18 | 11.2 | |
| 9 | 7 | W | 16 | 11.2 | |
| 9 | 7 | W | 18 | 11.1 | |
| 9 | 7 | W | 16 | 11.1 | |
| 8 | 7 | W | 14 | 11.0 | |
| 9 | 7 | NW | 18 | 11.0 | |
| 8 | 7 | NW | 16 | 10.9 | |
| 9 | 7 | NW | 18 | 11.0 | |
| 9 | 7 | NW | 14 | 11.1 |