M5 wave buoy daily averages for Jul 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
1 — 6.6 ft
Average Wave period
5 secs
3 — 7 secs
Average Water temperature
17 °C
15.5 — 20 °C
Average Wind
W, 14 mph
0 — 29 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) |
|---|---|---|---|---|---|
| 4 | 6 | NNE | 12 | 16.3 | |
| 3 | 5 | WNW | 14 | 16.1 | |
| 3 | 4 | W | 16 | 16.1 | |
| 5 | 5 | WSW | 22 | 16.2 | |
| 6 | 5 | WSW | 22 | 16.1 | |
| 5 | 5 | NW | 20 | 16.1 | |
| 5 | 5 | NW | 21 | 16.0 | |
| 3 | 4 | W | 10 | 16.1 | |
| 2 | 4 | NW | 9 | 16.5 | |
| 1 | 5 | SSE | 4 | 17.2 | |
| 1 | 6 | E | 5 | 18.2 | |
| 2 | 5 | E | 8 | 18.7 | |
| 2 | 5 | SE | 10 | 19.3 | |
| 5 | 5 | SW | 23 | 18.3 | |
| - | - | - | - | - | |
| 4 | 5 | S | 11 | 16.7 | |
| 4 | 5 | SW | 14 | 17.0 | |
| 4 | 5 | WSW | 14 | 17.1 | |
| 4 | 5 | SSE | 14 | 17.3 | |
| 6 | 5 | E | 16 | 17.2 | |
| 5 | 6 | WNW | 14 | 17.0 | |
| 3 | 4 | WNW | 14 | 16.3 | |
| 3 | 4 | NNW | 13 | 16.2 | |
| 2 | 4 | NW | 10 | 16.9 | |
| 2 | 4 | WSW | 13 | 17.4 | |
| 3 | 5 | WNW | 13 | 17.6 | |
| 3 | 5 | NW | 11 | 17.9 | |
| 3 | 5 | WNW | 14 | 18.1 | |
| 3 | 5 | W | 14 | 18.2 | |
| 3 | 4 | W | 14 | 18.0 | |
| 3 | 5 | NW | 10 | 18.1 |