M5 wave buoy daily averages for Jan 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
8 ft
2 — 15.7 ft
Average Wave period
6 secs
4 — 11 secs
Average Water temperature
11 °C
0 — 11.3 °C
Average Wind
WSW, 16 mph
2 — 31 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) |
|---|---|---|---|---|---|
| 12 | 7 | WNW | 19 | 11.2 | |
| 6 | 6 | N | 15 | 11.1 | |
| 3 | 5 | N | 8 | 11.0 | |
| 6 | 7 | ESE | 15 | 11.0 | |
| 10 | 6 | NNE | 22 | 11.0 | |
| 8 | 6 | NW | 22 | 11.1 | |
| 6 | 5 | NW | 16 | 11.0 | |
| 4 | 5 | ENE | 15 | 10.9 | |
| 7 | 8 | N | 12 | 10.7 | |
| 8 | 6 | ESE | 19 | 10.7 | |
| 9 | 7 | NW | 10 | 10.7 | |
| 6 | 7 | S | 14 | 10.8 | |
| 10 | 7 | SSW | 20 | 10.8 | |
| 8 | 7 | SW | 14 | 10.8 | |
| 6 | 7 | SSW | 11 | 10.8 | |
| 8 | 8 | S | 15 | 10.8 | |
| 7 | 6 | S | 16 | 10.8 | |
| 7 | 6 | S | 16 | 10.8 | |
| 8 | 7 | SSE | 15 | 10.8 | |
| 7 | 7 | S | 13 | 10.8 | |
| 4 | 5 | WSW | 12 | 10.8 | |
| 2 | 5 | NW | 9 | 10.3 | |
| 8 | 6 | WSW | 21 | 10.7 | |
| 14 | 8 | WSW | 24 | 10.6 | |
| 12 | 8 | WSW | 17 | 10.1 | |
| 11 | 7 | SSE | 21 | 10.5 | |
| - | - | - | - | - | |
| 13 | 8 | NW | 21 | 10.4 | |
| 7 | 6 | N | 17 | 9.9 | |
| 7 | 7 | WNW | 16 | 9.8 | |
| 7 | 6 | NNW | 11 | 10.1 |