M2 wave buoy daily averages for May 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
2 ft
0.3 — 7.5 ft
Average Wave period
4 secs
3 — 6 secs
Average Water temperature
11 °C
10 — 14.3 °C
Average Wind
NNE, 13 mph
2 — 31 mph
About M2 wave buoy
M2 is an offshore data buoy in the NE Atlantic west/south‑west of Ireland (53.2900°N, 5.2600°W). It is placed to observe approaching Atlantic sea states and weather systems, improving warnings and forecasts for Ireland and the UK. It typically reports directional wave parameters and standard meteorology.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 4 | 4 | SSW | 20 | 13.0 | |
| 3 | 4 | SSW | 15 | 13.0 | |
| 5 | 5 | SSW | 21 | 12.3 | |
| 3 | 5 | SW | 14 | 12.3 | |
| 3 | 5 | S | 13 | 12.5 | |
| 5 | 5 | SW | 23 | 12.6 | |
| 5 | 4 | W | 22 | 13.1 | |
| 3 | 4 | SSW | 19 | 13.5 | |
| 1 | 3 | SSW | 11 | 12.8 | |
| 2 | 4 | NNE | 11 | 12.2 | |
| 2 | 3 | NNW | 8 | 11.9 | |
| 1 | 4 | N | 4 | 11.4 | |
| 3 | 4 | ENE | 12 | 11.2 | |
| 2 | 3 | NE | 10 | 11.2 | |
| 2 | 3 | NNE | 11 | 11.1 | |
| 2 | 3 | NNE | 10 | 11.1 | |
| 2 | 4 | NNE | 12 | 10.9 | |
| 3 | 4 | NE | 15 | 10.7 | |
| 3 | 4 | ENE | 15 | 10.6 | |
| 2 | 4 | N | 12 | 10.8 | |
| 1 | 4 | N | 7 | 11.0 | |
| 1 | 4 | E | 5 | 10.8 | |
| 1 | 3 | SE | 8 | 10.8 | |
| 2 | 3 | ENE | 12 | 10.7 | |
| 2 | 4 | NNE | 9 | 10.8 | |
| 1 | 4 | N | 4 | 10.6 | |
| 3 | 4 | NE | 13 | 10.2 | |
| 4 | 4 | NNE | 17 | 10.2 | |
| 3 | 4 | N | 16 | 10.2 | |
| 2 | 3 | NNE | 13 | 10.4 | |
| 1 | 4 | NNW | 11 | 10.5 |