M3 wave buoy daily averages for Apr 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
8 ft
3 — 11.8 ft
Average Wave period
6 secs
5 — 9 secs
Average Water temperature
12 °C
11.1 — 13.2 °C
Average Wind
SE, 17 mph
0 — 33 mph
Chart showing grouped wave observations for M3. Use the table on this page for a text version of the same measurements.
About M3 wave buoy
M3 is an offshore data buoy in the Atlantic approaches (51.1300°N, 10.3300°W). It provides upstream observations of swell and storm conditions relevant to Ireland/UK marine forecasts. It typically measures wave height/period/direction plus basic meteorological variables.
| Day | Wave height (ft) | Wave Period (s) | Wind Direction | Wind Speed (mph) | Water Temp (°C) |
|---|---|---|---|---|---|
| 10 | 6 | ESE | 26 | 11.4 | |
| 9 | 6 | E | 23 | 11.4 | |
| 8 | 6 | ENE | 22 | 11.3 | |
| 6 | 5 | ESE | 19 | 11.4 | |
| 8 | 5 | E | 28 | 11.5 | |
| 7 | 6 | ESE | 18 | 11.6 | |
| 5 | 5 | ESE | 17 | 11.7 | |
| 8 | 6 | ESE | 19 | 11.7 | |
| 7 | 7 | E | 12 | 11.9 | |
| 4 | 6 | E | 10 | 12.1 | |
| 3 | 6 | ESE | 7 | 12.4 | |
| 6 | 7 | WSW | 13 | 12.4 | |
| 10 | 7 | WSW | 18 | 12.1 | |
| 10 | 7 | WSW | 17 | 12.1 | |
| 10 | 7 | NW | 14 | 12.0 | |
| 7 | 7 | NW | 7 | 12.3 | |
| 6 | 6 | SE | 14 | 12.2 | |
| 9 | 6 | N | 24 | 12.0 | |
| 11 | 7 | NNW | 26 | 11.9 | |
| 7 | 6 | W | 15 | 11.9 | |
| 9 | 7 | WSW | 16 | 12.0 | |
| 9 | 6 | SW | 24 | 11.9 | |
| 9 | 7 | W | 15 | 12.0 | |
| 7 | 7 | S | 15 | 12.0 | |
| 10 | 9 | SSW | 12 | 12.2 | |
| 9 | 8 | SSW | 16 | 12.3 | |
| 9 | 6 | S | 20 | 12.3 | |
| 7 | 6 | SE | 19 | 12.4 | |
| 7 | 6 | ESE | 18 | 12.5 | |
| 5 | 6 | E | 15 | 12.8 |