M2 wave buoy daily averages for Jan 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
5 ft
1.3 — 10.2 ft
Average Wave period
5 secs
3 — 7 secs
Average Water temperature
11 °C
9.8 — 11.4 °C
Average Wind
SW, 21 mph
2 — 45 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) |
|---|---|---|---|---|---|
| 6 | 5 | WNW | 23 | 11.3 | |
| 4 | 4 | NNW | 18 | 11.2 | |
| 4 | 4 | W | 21 | 11.1 | |
| 3 | 4 | S | 13 | 11.2 | |
| 8 | 5 | NE | 28 | 11.2 | |
| 8 | 5 | NW | 29 | 11.1 | |
| 6 | 5 | WNW | 24 | 11.1 | |
| 3 | 4 | N | 11 | 11.1 | |
| 4 | 4 | NW | 17 | 11.1 | |
| 3 | 4 | ESE | 16 | 11.0 | |
| 5 | 5 | SSW | 18 | 10.9 | |
| 4 | 5 | S | 21 | 10.9 | |
| 8 | 6 | SSW | 29 | 10.9 | |
| 4 | 5 | S | 12 | 10.8 | |
| 4 | 4 | SSW | 23 | 10.8 | |
| 5 | 5 | SSW | 25 | 10.8 | |
| 6 | 5 | SSW | 26 | 10.8 | |
| 6 | 5 | S | 23 | 10.8 | |
| 4 | 4 | S | 19 | 10.7 | |
| 4 | 4 | SSW | 17 | 10.6 | |
| 3 | 4 | W | 11 | 10.6 | |
| 2 | 3 | W | 11 | 10.6 | |
| 5 | 4 | SW | 24 | 10.6 | |
| 8 | 6 | SW | 32 | 10.4 | |
| 6 | 5 | WSW | 24 | 10.4 | |
| 6 | 5 | S | 24 | 10.3 | |
| 9 | 6 | S | 22 | 10.2 | |
| 6 | 6 | NNW | 19 | 10.0 | |
| 5 | 5 | NW | 20 | 10.0 | |
| 4 | 4 | W | 21 | 10.0 | |
| 4 | 4 | W | 16 | 9.9 |