M3 wave buoy daily averages for Jul 2025 last observation shown Data available: to Monthly averages for
Average Wave Height
6 ft
2 — 10.8 ft
Average Wave period
6 secs
4 — 8 secs
Average Water temperature
17 °C
15.9 — 18.2 °C
Average Wind
WNW, 14 mph
0 — 26 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) |
|---|---|---|---|---|---|
| 6 | 6 | NNW | 16 | 16.3 | |
| 4 | 5 | WNW | 14 | 16.4 | |
| 5 | 5 | W | 15 | 16.6 | |
| 8 | 6 | WSW | 21 | 16.5 | |
| 9 | 6 | W | 18 | 16.3 | |
| 9 | 6 | NW | 21 | 16.0 | |
| 6 | 5 | NNW | 17 | 16.0 | |
| 4 | 5 | NW | 15 | 16.2 | |
| 4 | 5 | WNW | 10 | 16.6 | |
| 3 | 6 | E | 7 | 17.1 | |
| 4 | 5 | SE | 12 | 17.4 | |
| 4 | 5 | SE | 13 | 17.7 | |
| 5 | 6 | SSE | 14 | 17.9 | |
| 8 | 6 | W | 23 | 17.2 | |
| 8 | 6 | WSW | 7 | 16.3 | |
| 5 | 6 | SSW | 11 | 16.4 | |
| 7 | 5 | SW | 17 | 16.5 | |
| 6 | 6 | W | 10 | 16.7 | |
| 4 | 5 | SSW | 12 | 16.6 | |
| 7 | 6 | NNW | 19 | 16.5 | |
| 7 | 5 | NW | 19 | 16.4 | |
| 4 | 5 | NW | 12 | 16.5 | |
| 5 | 5 | NNW | 15 | 16.5 | |
| 3 | 5 | WSW | 9 | 16.8 | |
| 4 | 5 | WNW | 11 | 16.9 | |
| 8 | 7 | WNW | 13 | 17.0 | |
| 7 | 7 | NW | 9 | 17.2 | |
| 6 | 6 | WNW | 15 | 17.0 | |
| 5 | 5 | WNW | 16 | 16.7 | |
| 5 | 5 | W | 14 | 17.0 | |
| 6 | 5 | NW | 19 | 17.0 |