M2 wave buoy monthly averages for 2025 last observation shown Data available: to
Average Wave Height
4 ft
0.3 — 20.3 ft
Average Wave period
4 secs
3 — 9 secs
Average Water temperature
12 °C
0 — 16.7 °C
Average Wind
SSW, 18 mph
0 — 56 mph
Chart showing grouped wave observations for M2. Use the table on this page for a text version of the same measurements.
Sorry, there is no wave data for Jan 2025
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.
| Month | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 5 | 5 | SW | 21 | 10.7 | |
| 5 | 5 | SW | 20 | 9.4 | |
| 3 | 4 | SE | 16 | 9.0 | |
| 3 | 4 | ESE | 14 | 9.7 | |
| 3 | 4 | NNE | 13 | 11.4 | |
| 3 | 4 | SSW | 15 | 13.6 | |
| 2 | 4 | WSW | 12 | 14.6 | |
| 3 | 4 | S | 14 | 15.1 | |
| 4 | 4 | SSW | 17 | 14.7 | |
| 4 | 4 | W | 18 | - | |
| 6 | 5 | WSW | 26 | 13.0 | |
| 6 | 5 | S | 24 | 12.3 |