M5 wave buoy daily averages for Aug 2023 last observation shown Data available: to Monthly averages for
Average Wave Height
5 ft
1.6 — 10.2 ft
Average Wave period
5 secs
3 — 8 secs
Average Water temperature
16 °C
14.6 — 17.6 °C
Average Wind
WSW, 16 mph
2 — 40 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) |
|---|---|---|---|---|---|
| 6 | 5 | WSW | 18 | 16.3 | |
| 9 | 6 | WSW | 20 | 16.3 | |
| 7 | 6 | NW | 21 | 16.0 | |
| 4 | 5 | WNW | 17 | 15.9 | |
| 8 | 6 | W | 24 | 15.9 | |
| 4 | 5 | WNW | 14 | 15.8 | |
| 3 | 4 | WSW | 12 | 15.9 | |
| 4 | 5 | SW | 10 | 15.8 | |
| 3 | 5 | SSW | 9 | 16.0 | |
| 4 | 4 | SSE | 17 | 16.5 | |
| 7 | 6 | SSW | 20 | 16.5 | |
| 9 | 6 | SW | 24 | 16.5 | |
| 6 | 6 | SW | 17 | 16.5 | |
| 5 | 5 | WNW | 16 | 15.6 | |
| 3 | 5 | WNW | 11 | 16.2 | |
| 2 | 5 | E | 5 | 16.9 | |
| 3 | 4 | E | 12 | 17.0 | |
| 5 | 5 | SE | 21 | 16.9 | |
| 8 | 6 | SSW | 18 | 15.5 | |
| 6 | 6 | SSW | 17 | 15.7 | |
| 6 | 5 | SSW | 18 | 15.9 | |
| 5 | 5 | SW | 16 | 16.1 | |
| 3 | 4 | SSW | 13 | 16.3 | |
| 2 | 4 | WNW | 12 | 16.4 | |
| 3 | 4 | W | 15 | 16.4 | |
| 4 | 4 | NW | 20 | 16.2 | |
| 4 | 4 | WNW | 17 | 15.8 | |
| 3 | 4 | WNW | 16 | 15.7 | |
| 3 | 4 | WNW | 15 | 15.8 | |
| 3 | 4 | W | 10 | 16.0 | |
| 4 | 4 | SSW | 15 | 16.0 |