M2 wave buoy daily averages for Oct 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
4 ft
0.3 — 9.2 ft
Average Wave period
4 secs
3 — 8 secs
Average Water temperature
- °C
- — - °C
Average Wind
W, 17 mph
0 — 40 mph
Chart showing grouped wave observations for M2. Use the table on this page for a text version of the same measurements.
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) |
|---|---|---|---|---|---|
| 5 | 5 | S | 23 | - | |
| 6 | 5 | S | 26 | - | |
| 6 | 5 | SSW | 23 | - | |
| 8 | 5 | WNW | 31 | - | |
| 5 | 5 | W | 23 | - | |
| 4 | 4 | SSW | 20 | - | |
| 4 | 5 | SW | 18 | - | |
| 3 | 4 | WNW | 16 | - | |
| 3 | 4 | W | 16 | - | |
| 2 | 3 | W | 11 | - | |
| 1 | 4 | NW | 6 | - | |
| 1 | 3 | NE | 8 | - | |
| 2 | 3 | SE | 6 | - | |
| 1 | 3 | NE | 9 | - | |
| 1 | 3 | NE | 9 | - | |
| 1 | 3 | ENE | 7 | - | |
| 1 | 3 | ESE | 8 | - | |
| 5 | 4 | SE | 24 | - | |
| 7 | 5 | SSE | 24 | - | |
| 4 | 5 | NE | 14 | - | |
| 4 | 4 | W | 20 | - | |
| 3 | 4 | WSW | 11 | - | |
| 5 | 5 | NW | 23 | - | |
| 5 | 5 | WNW | 21 | - | |
| 7 | 5 | NNW | 25 | - | |
| 6 | 5 | WNW | 23 | - | |
| 5 | 5 | WNW | 19 | - | |
| 4 | 6 | WNW | 20 | - | |
| - | - | - | - | - | |
| - | - | - | - | - | |
| - | - | - | - | - |