M5 wave buoy daily averages for Jan 2026 last observation shown Data available: to Monthly averages for
Average Wave Height
5 ft
2.3 — 6.6 ft
Average Wave period
4 secs
4 — 5 secs
Average Water temperature
11 °C
10.8 — 11.4 °C
Average Wind
NW, 19 mph
12 — 24 mph
About M5 wave buoy
M5 is an offshore data buoy in the Atlantic approaches (51.4100°N, 6.4200°W). It is positioned to monitor swell and storm waves moving toward Ireland and the UK, supporting marine warnings. It typically reports waves (height/period/direction) and basic meteorology.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 4 | 4 | W | 16 | 10.8 | |
| 5 | 4 | N | 21 | 10.9 | |
| 4 | 4 | NW | 17 | 11.0 | |
| 6 | 5 | N | 20 | 11.1 | |
| 5 | 4 | NNW | 20 | 11.3 | |
| 4 | 4 | NW | 19 | 11.3 |