M5 wave buoy daily averages for Jun 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 — 7 secs
Average Water temperature
15 °C
13.4 — 17.4 °C
Average Wind
SW, 16 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) |
|---|---|---|---|---|---|
| 7 | 6 | WNW | 17 | 13.7 | |
| 5 | 6 | W | 14 | 13.7 | |
| 6 | 6 | W | 15 | 13.6 | |
| 5 | 5 | WSW | 19 | 13.6 | |
| 5 | 5 | W | 20 | 13.6 | |
| 5 | 5 | W | 19 | 13.6 | |
| 4 | 5 | WNW | 15 | 13.7 | |
| 5 | 5 | W | 18 | 13.6 | |
| 4 | 4 | WSW | 18 | 13.7 | |
| 4 | 5 | SW | 12 | 14.1 | |
| 2 | 4 | SE | 10 | 14.4 | |
| 3 | 5 | SSE | 16 | 14.2 | |
| 5 | 5 | S | 15 | 14.3 | |
| 4 | 5 | WSW | 11 | 14.6 | |
| 4 | 4 | W | 16 | 14.7 | |
| 3 | 4 | WSW | 16 | 14.9 | |
| 4 | 4 | WSW | 17 | 15.0 | |
| 3 | 5 | E | 7 | 15.4 | |
| 2 | 4 | ESE | 11 | 15.8 | |
| 3 | 4 | SSE | 9 | 16.4 | |
| 2 | 4 | SW | 10 | 17.0 | |
| 5 | 5 | WSW | 22 | 16.3 | |
| 6 | 5 | W | 22 | 15.3 | |
| 6 | 5 | WSW | 22 | 15.7 | |
| 4 | 5 | SSW | 15 | 15.9 | |
| 5 | 5 | WSW | 22 | 15.9 | |
| 6 | 5 | SW | 21 | 15.9 | |
| 5 | 5 | SW | 19 | 16.1 | |
| 4 | 6 | SSW | 11 | 16.4 | |
| 3 | 6 | SSW | 9 | 16.9 |