M5 wave buoy daily averages for Mar 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
1.6 — 6.9 ft
Average Wave period
5 secs
3 — 10 secs
Average Water temperature
10 °C
0 — 10.5 °C
Average Wind
E, 13 mph
0 — 26 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) |
|---|---|---|---|---|---|
| 3 | 6 | SSW | 6 | 9.3 | |
| 4 | 8 | SW | 8 | 9.3 | |
| 4 | 7 | WSW | 7 | 9.3 | |
| 4 | 6 | WSW | 13 | 9.3 | |
| 4 | 5 | SW | 14 | 8.8 | |
| 5 | 5 | S | 15 | 9.2 | |
| 6 | 6 | SE | 12 | 9.3 | |
| 6 | 6 | E | 16 | 9.4 | |
| 5 | 6 | NE | 14 | 9.5 | |
| 4 | 5 | NE | 16 | 9.5 | |
| 5 | 5 | NE | 18 | 9.7 | |
| 4 | 4 | NNE | 18 | 9.7 | |
| 4 | 4 | N | 13 | 9.7 | |
| 3 | 5 | NE | 11 | 9.7 | |
| 3 | 4 | NE | 14 | 9.7 | |
| 3 | 4 | ENE | 13 | 9.7 | |
| 4 | 4 | E | 17 | 9.6 | |
| 6 | 5 | E | 18 | 9.6 | |
| 5 | 5 | E | 14 | 9.6 | |
| 4 | 5 | ESE | 14 | 9.7 | |
| 6 | 6 | ESE | 15 | 9.7 | |
| 6 | 6 | ENE | 15 | 9.7 | |
| 6 | 5 | N | 18 | 9.8 | |
| 3 | 4 | NNW | 11 | 10.0 | |
| 2 | 5 | WNW | 6 | 10.0 | |
| 2 | 6 | SSW | 9 | 10.3 | |
| 4 | 5 | SW | 16 | 10.0 | |
| 6 | 6 | WNW | 18 | 9.9 | |
| 5 | 5 | WSW | 16 | 9.8 | |
| 4 | 5 | W | 10 | 10.0 | |
| 3 | 6 | SE | 9 | 10.2 |