M5 wave buoy daily averages for Apr 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
1 — 6.6 ft
Average Wave period
5 secs
4 — 10 secs
Average Water temperature
11 °C
9.9 — 13.1 °C
Average Wind
E, 12 mph
0 — 24 mph
Chart showing grouped wave observations for M5. Use the table on this page for a text version of the same measurements.
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) |
|---|---|---|---|---|---|
| 5 | 5 | E | 17 | 10.0 | |
| 5 | 5 | ENE | 18 | 10.0 | |
| 5 | 5 | ENE | 18 | 10.0 | |
| 4 | 4 | ENE | 15 | 10.1 | |
| 5 | 5 | ENE | 17 | 10.2 | |
| 5 | 5 | E | 14 | 10.2 | |
| 3 | 5 | E | 10 | 10.3 | |
| 4 | 7 | ENE | 6 | 10.7 | |
| 6 | 8 | NE | 12 | 10.8 | |
| 4 | 6 | ESE | 8 | 11.0 | |
| 2 | 7 | E | 4 | 11.4 | |
| 2 | 6 | NW | 8 | 11.4 | |
| 3 | 4 | W | 14 | 11.1 | |
| 5 | 5 | SW | 12 | 10.7 | |
| 4 | 5 | N | 16 | 10.6 | |
| 5 | 5 | WNW | 15 | 10.5 | |
| 3 | 5 | SSE | 12 | 10.6 | |
| 5 | 5 | ESE | 16 | 10.6 | |
| 5 | 5 | E | 14 | 10.7 | |
| 3 | 5 | SE | 11 | 10.7 | |
| 4 | 4 | W | 15 | 10.8 | |
| 5 | 5 | SSW | 15 | 10.8 | |
| 6 | 6 | NNW | 6 | 11.0 | |
| 4 | 6 | SSE | 11 | 11.0 | |
| 6 | 7 | SSE | 14 | 11.0 | |
| 5 | 7 | SW | 8 | 11.5 | |
| 5 | 5 | SSW | 14 | 11.5 | |
| 5 | 6 | SE | 11 | 11.8 | |
| 4 | 6 | E | 11 | 12.1 | |
| 2 | 5 | E | 9 | 12.6 |