M4 wave buoy daily averages for Feb 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
16 ft
8.5 — 28.5 ft
Average Wave period
8 secs
6 — 12 secs
Average Water temperature
11 °C
10.1 — 11.1 °C
Average Wind
SW, 24 mph
7 — 43 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.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 12 | 7 | SSW | 26 | 11.0 | |
| 12 | 8 | W | 15 | 11.0 | |
| 14 | 7 | WNW | 27 | 11.0 | |
| 17 | 9 | WSW | 22 | 11.0 | |
| 23 | 10 | WSW | 26 | 11.0 | |
| 12 | 7 | SE | 29 | 10.5 | |
| 10 | 6 | SE | 27 | 10.4 | |
| 18 | 9 | SSE | 22 | 10.8 | |
| 17 | 9 | S | 24 | 10.8 | |
| 17 | 9 | WSW | 22 | 10.9 | |
| 19 | 10 | W | 21 | 10.9 | |
| 24 | 10 | SSW | 29 | 10.9 | |
| 18 | 10 | SW | 22 | 10.9 | |
| 15 | 7 | SSW | 24 | 10.9 |