M2 wave buoy daily averages for Aug 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
3 ft
0.3 — 6.6 ft
Average Wave period
4 secs
3 — 6 secs
Average Water temperature
15 °C
13.9 — 16.6 °C
Average Wind
S, 13 mph
2 — 33 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) |
|---|---|---|---|---|---|
| 3 | 4 | NNW | 14 | 15.5 | |
| 2 | 3 | WSW | 10 | 15.6 | |
| 2 | 3 | WSW | 13 | 15.9 | |
| 5 | 4 | SW | 24 | 15.5 | |
| 4 | 4 | W | 18 | 15.0 | |
| 3 | 4 | SW | 18 | 15.1 | |
| 4 | 5 | WSW | 17 | 15.2 | |
| 3 | 4 | SSW | 19 | 15.0 | |
| 3 | 4 | SW | 14 | 15.1 | |
| 2 | 4 | SSW | 15 | 15.0 | |
| 1 | 4 | SE | 7 | 14.8 | |
| 1 | 4 | ENE | 7 | 14.7 | |
| 2 | 4 | S | 12 | 14.6 | |
| 2 | 4 | SSE | 8 | 14.7 | |
| 2 | 4 | N | 8 | 14.7 | |
| 2 | 4 | NE | 12 | 14.8 | |
| 2 | 4 | E | 10 | 14.8 | |
| 3 | 4 | E | 10 | 14.8 | |
| 3 | 4 | NE | 14 | 14.7 | |
| 3 | 4 | NE | 12 | 14.7 | |
| 2 | 3 | ENE | 7 | 14.8 | |
| 1 | 3 | SW | 8 | 15.0 | |
| 1 | 4 | S | 7 | 15.0 | |
| 1 | 3 | SSE | 10 | 14.9 | |
| 3 | 4 | SSE | 17 | 14.9 | |
| 4 | 4 | S | 17 | 15.3 | |
| 4 | 5 | S | 19 | 15.7 | |
| 4 | 4 | SSW | 17 | 15.6 | |
| 3 | 4 | WSW | 15 | 15.4 | |
| 4 | 4 | SSW | 19 | 15.4 | |
| - | - | - | - | - |