M5 wave buoy daily averages for Oct 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
6 ft
1 — 17.7 ft
Average Wave period
5 secs
3 — 9 secs
Average Water temperature
15 °C
14.3 — 15.5 °C
Average Wind
W, 19 mph
0 — 43 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) |
|---|---|---|---|---|---|
| 8 | 5 | W | 25 | 14.3 | |
| 7 | 5 | W | 24 | 14.3 | |
| 6 | 5 | WNW | 24 | 14.5 | |
| 7 | 5 | NNW | 27 | 14.5 | |
| 10 | 6 | WNW | 28 | 14.6 | |
| 8 | 5 | NW | 26 | 14.7 | |
| 4 | 5 | WSW | 10 | 14.9 | |
| 6 | 5 | WNW | 20 | 14.9 | |
| 10 | 7 | W | 18 | 14.9 | |
| 9 | 6 | S | 21 | 14.9 | |
| 7 | 5 | SE | 26 | 14.9 | |
| 3 | 4 | ESE | 15 | 14.8 | |
| 3 | 4 | E | 14 | 14.8 | |
| 3 | 4 | E | 13 | 14.9 | |
| 3 | 4 | ENE | 16 | 14.9 | |
| 3 | 4 | E | 14 | 14.9 | |
| 2 | 4 | E | 13 | 14.9 | |
| 1 | 5 | NE | 9 | 14.9 | |
| 2 | 5 | NW | 6 | 14.9 | |
| 3 | 5 | NW | 9 | 14.9 | |
| 5 | 6 | NNW | 15 | 14.9 | |
| 5 | 5 | SW | 17 | 14.8 | |
| 5 | 5 | WSW | 20 | 14.8 | |
| 8 | 6 | WNW | 23 | 14.9 | |
| 15 | 8 | W | 35 | 15.0 | |
| 10 | 6 | SW | 28 | 15.3 | |
| 7 | 5 | SSW | 23 | 15.4 | |
| 5 | 5 | SSW | 18 | 15.4 |